The lengthy chapters in biology class eleven include several important topics. The subject is vast and covers a variety of biological aspects. Important biological concepts, such as definitions, applications, and enzyme names, are the subject of basic exam questions.
You will have a better comprehension of ideas and achieve higher scores in tests and examinations by using Class 11 Questions with Solutions. b) By using these multiple-choice problems for Biology Class 11, students' analytical and complicated problem-solving abilities will be enhanced.
Aerobic respiration is the process of converting food into energy in the presence of oxygen. It is the most efficient way to produce energy from food, and it is how humans and other animals generate most of their energy.
Aerobic respiration occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain.
Glycolysis is the first stage of aerobic respiration. It occurs in the cytoplasm of the cell and does not require oxygen. In glycolysis, one molecule of glucose is broken down into two molecules of pyruvate, with a net gain of two ATP molecules.
The Krebs cycle is the second stage of aerobic respiration. It occurs in the mitochondrial matrix and requires oxygen. In the Krebs cycle, pyruvate is broken down into carbon dioxide and water, with a net gain of two ATP molecules, six NADH molecules, and two FADH2 molecules.
The electron transport chain is the third and final stage of aerobic respiration. It occurs on the inner mitochondrial membrane and requires oxygen. In the electron transport chain, NADH and FADH2 donate electrons to oxygen, which is then used to produce water. This process produces a net gain of 34 ATP molecules.
The overall equation for aerobic respiration is:
C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP
Aerobic respiration is a complex process, but it is essential for life. It is the most efficient way to produce energy from food, and it is how humans and other animals generate most of their energy.
Here are some keywords that can be used to rank a SlideShare presentation on aerobic respiration:
aerobic respiration
glycolysis
Krebs cycle
electron transport chain
ATP
NADH
FADH2
oxygen
carbon dioxide
water
energy
cellular respiration
metabolism
Here is a description of aerobic respiration in 2500 words:
Aerobic respiration is the process of converting food into energy in the presence of oxygen. It is the most efficient way to produce energy from food, and it is how humans and other animals generate most of their energy.
Aerobic respiration occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain.
Glycolysis is the first stage of aerobic respiration. It occurs in the cytoplasm of the cell and does not require oxygen. In glycolysis, one molecule of glucose is broken down into two molecules of pyruvate, with a net gain of two ATP molecules.
The equation for glycolysis is:
C6H12O6 → 2CH3COCOO- + 2ATP + 2NADH
The Krebs cycle is the second stage of aerobic respiration. It occurs in the mitochondrial matrix and requires oxygen. In the Krebs cycle, pyruvate is broken down into carbon dioxide and water, with a net gain of two ATP molecules, six NADH molecules, and two FADH2 molecules.
The equation for the Krebs cycle is:
CH3COCOO- + 6O2 → 6CO2 + 6H2O + 2ATP + 6NADH + 2FADH2
The electron transport chain is the third and final stage of aerobic respiration. It occurs on the inner mitochondrial membrane and requires oxygen. In the electron transport chain, NADH and FADH2.
Here is a 2500-word description of blood count range without headings and 30 tags for SlideShare uploading on blood count range using keywords to rank on top:
Blood Count Range
A blood count range is a set of values that are considered normal for the number of different types of blood cells in the blood. Blood cells are responsible for carrying oxygen and nutrients throughout the body, fighting infection, and helping the blood to clot.
There are three main types of blood cells: red blood cells (RBCs), white blood cells (WBCs), and platelets. RBCs carry oxygen from the lungs to the tissues and carbon dioxide from the tissues to the lungs. WBCs fight infection and disease. Platelets help the blood to clot.
The normal blood count range for each type of blood cell is different for men, women, and children. The following table shows the normal blood count range for adults:
Blood cell type Normal range (cells/mm3)
Red blood cells (RBCs) Male: 4.7-6.1 million/mm3; Female: 4.2-5.4 million/mm3
White blood cells (WBCs) 4,500-11,000 cells/mm3
Platelets 150,000-450,000 cells/mm3
A blood count range is important because it can help to diagnose a variety of medical conditions. For example, a high RBC count may indicate polycythemia, a condition in which the body produces too many red blood cells. A low RBC count may indicate anemia, a condition in which the body does not have enough red blood cells to carry oxygen to the tissues. A high WBC count may indicate an infection or inflammation. A low WBC count may indicate a blood disorder or a weakened immune system. A high platelet count may indicate an increased risk of blood clots. A low platelet count may indicate a problem with the bone marrow, where platelets are produced.
Causes of abnormal blood count range
There are a variety of factors that can can cause an abnormal blood count range. These include:
Infection: Infections can cause an increase in white blood cells, as the body fights off the infection.
Inflammation: Inflammation can also cause an increase in white blood cells.
Blood disorders: Blood disorders, such as leukemia and lymphoma, can cause changes in the number and type of blood cells.
Cancer: Cancer can also cause changes in the number and type of blood cells.
Autoimmune diseases: Autoimmune diseases, such as rheumatoid arthritis and lupus, can cause changes in the number and type of blood cells.
Nutrient deficiencies: Nutrient deficiencies, such as iron deficiency anemia and vitamin B12 deficiency anemia, can cause changes in the number and type of blood cells.
Medications: Some medications, such as chemotherapy drugs and corticosteroids, can cause changes in the number and type of blood cells.
Pregnancy: Pregnancy can cause changes in the number and type of blood cells.
Symptoms of abnormal blood count range
The symptoms of an abnormal blood count range can vary depending on the underlying cause.
research presentation bioremediation.pptxIqra Iftikhar
Bioremediation has several advantages over other remediation technologies, such as incineration and landfilling. It is less expensive, more environmentally friendly, and can be used to treat a wider range of pollutants.
Innovation matrix
The innovation matrix is a tool that can be used to assess the novelty and impact of a research project. It is based on four criteria:
Newness: This refers to the degree to which the project is new and original.
Usefulness: This refers to the potential of the project to have a positive impact on society.
Feasibility: This refers to whether the project is technically and economically feasible.
Scalability: This refers to the potential of the project to be scaled up to a larger scale.
Research onion
The research onion is a model that can be used to understand the different layers of research. It is based on the idea that research is a process of progressively refining and narrowing down a topic.
The outer layer of the research onion represents the broadest level of research. This layer includes exploratory research, which is used to develop a general understanding of a topic.
The next layer of the onion represents descriptive research, which is used to provide a more detailed understanding of a topic.
The next layer of the onion represents explanatory research, which is used to explain why something happens.
The final layer of the onion represents predictive research, which is used to predict what will happen in the future.
Research project FYP presentation
The research project FYP presentation is an important part of the final year project. It is an opportunity for students to present their findings to a panel of experts.
The presentation should be well-organized and informative. It should include the following sections:
Introduction: This section should provide a brief overview of the research project, including the topic, the research questions, and the methodology.
Findings: This section should present the main findings of the research project.
Discussion: This section should discuss the implications of the findings and suggest areas for future research.
Conclusion: This section should summarize the main points of the presentation and restate the research questions.
Mitochondria are bean-shaped organelles that are found in the cytoplasm of almost all eukaryotic cells. They are often referred to as the "powerhouse of the cell" because they are responsible for producing most of the cell's energy in the form of adenosine triphosphate (ATP).
Structure of Mitochondria
Each mitochondrion is enclosed by two membranes: an outer membrane and an inner membrane. The outer membrane is smooth and permeable to most molecules, while the inner membrane is highly folded and contains many proteins that are involved in energy production. The space between the outer and inner membranes is called the intermembrane space.
Inside the inner membrane is a fluid-filled matrix that contains mitochondrial DNA, ribosomes, and enzymes. The mitochondrial DNA is different from the DNA in the cell nucleus and encodes its own set of genes. These genes are essential for the production of mitochondrial proteins, which are involved in energy production, cell signaling, and other important cellular functions.
How Mitochondria Work
Mitochondria produce ATP through a process called oxidative phosphorylation. Oxidative phosphorylation is a complex process that involves the transfer of electrons from food molecules to oxygen. This process takes place in the electron transport chain, which is located in the inner mitochondrial membrane.
The electron transport chain is made up of a series of protein complexes that pass electrons from one complex to the next. As the electrons are passed along the chain, they lose energy, which is used to pump protons across the inner mitochondrial membrane. This creates a proton gradient across the membrane, which drives the production of ATP.
ATP is produced by a protein complex called ATP synthase. ATP synthase uses the energy from the proton gradient to synthesize ATP from ADP and inorganic phosphate. ATP is then transported out of the mitochondria and used by the cell to power its various activities.
Other Functions of Mitochondria
In addition to producing ATP, mitochondria also play a role in a number of other cellular processes,
Mitochondria are essential organelles that are involved in a wide range of cellular processes. They play a particularly important role in energy production, but they also play a role in cell signaling, calcium homeostasis, iron metabolism, and detoxification. Mitochondrial diseases can cause a variety of symptoms, but there are treatments that can help to manage the symptoms.
Biology MCQs
Multiple choice questions (MCQs) are a type of objective question that is used to assess a student's knowledge or understanding of a particular topic. MCQs are typically used in standardized tests, such as the SAT and ACT, as well as in classroom assessments.
Biology MCQs can be used to test students on a wide range of topics, including:
Cell biology
Genetics
Evolution
Ecology
Anatomy and physiology
Conceptual questions are a type of MCQ that tests a student's understanding of a concept, rather than their knowledge of a specific fact or detail. Conceptual questions are often more difficult to answer than factual questions, and they require students to think critically about the material.
Here are some conceptual questions on biology MCQs on different topics:
Cell biology
What is the difference between prokaryotic and eukaryotic cells?
What are the functions of the different organelles in a cell?
How does cellular respiration work?
What is photosynthesis?
How does mitosis differ from meiosis?
Genetics
What is the difference between DNA and RNA?
How does protein synthesis work?
What are the different types of mutations?
How do genes determine traits?
What is the difference between dominant and recessive alleles?
Evolution
What is the theory of evolution?
What is natural selection?
What is genetic drift?
What is speciation?
What is the evidence of evolution?
Ecology
What is the difference between a population and a community?
What is an ecosystem?
What are the different types of food chains?
What is the carbon cycle?
What is the water cycle?
Anatomy and physiology
What are the different organ systems in the human body?
How does the circulatory system work?
How does the respiratory system work?
How does the digestive system work?
How does the nervous system work?
Here are some additional conceptual questions on biology MCQs:
What is the difference between a biotic and abiotic factor?
What is homeostasis?
What is the difference between a virus and a bacterium?
What is the difference between a fungus and a plant?
What is the difference between a plant and an animal?
How to answer conceptual questions on biology MCQs
To answer conceptual questions on biology MCQs, you need to have a good understanding of the underlying concepts. You should also be able to apply these concepts to different situations.
Here are some tips for answering conceptual questions on biology MCQs:
Read the question carefully and make sure you understand what is being asked.
Try to identify the key concept that is being tested.
Think about how the concept applies to the situation described in the question.
Eliminate any answer choices that are clearly wrong.
If you are unsure of the answer, choose the answer choice that seems most likely to be correct.
Biology MCQs
Multiple choice questions (MCQs) are a type of objective question that is used to assess a student's knowledge or understanding of a particular topic. MCQs are typically used in standardized tests, such as the SAT and ACT, as well as in classroom assessments.
Biology MCQs can be used to test students on a wide range of topics, including:
Cell biology
Genetics
Evolution
Ecology
Anatomy and physiology
Conceptual questions are a type of MCQ that tests a student's understanding of a concept, rather than their knowledge of a specific fact or detail. Conceptual questions are often more difficult to answer than factual questions, and they require students to think critically about the material.
Here are some conceptual questions on biology MCQs on different topics:
Cell biology
What is the difference between prokaryotic and eukaryotic cells?
What are the functions of the different organelles in a cell?
How does cellular respiration work?
What is photosynthesis?
How does mitosis differ from meiosis?
Genetics
What is the difference between DNA and RNA?
How does protein synthesis work?
What are the different types of mutations?
How do genes determine traits?
What is the difference between dominant and recessive alleles?
Evolution
What is the theory of evolution?
What is natural selection?
What is genetic drift?
What is speciation?
What is the evidence of evolution?
Ecology
What is the difference between a population and a community?
What is an ecosystem?
What are the different types of food chains?
What is the carbon cycle?
What is the water cycle?
Anatomy and physiology
What are the different organ systems in the human body?
How does the circulatory system work?
How does the respiratory system work?
How does the digestive system work?
How does the nervous system work?
Here are some additional conceptual questions on biology MCQs:
What is the difference between a biotic and abiotic factor?
What is homeostasis?
What is the difference between a virus and a bacterium?
What is the difference between a fungus and a plant?
What is the difference between a plant and an animal?
How to answer conceptual questions on biology MCQs
To answer conceptual questions on biology MCQs, you need to have a good understanding of the underlying concepts. You should also be able to apply these concepts to different situations.
Here are some tips for answering conceptual questions on biology MCQs:
Read the question carefully and make sure you understand what is being asked.
Try to identify the key concept that is being tested.
Think about how the concept applies to the situation described in the question.
Eliminate any answer choices that are clearly wrong.
If you are unsure of the answer, choose the answer choice that seems most likely to be correct.
General knowledge MCQs are a popular way to test one's knowledge of a wide range of topics. However, many MCQs are simply factual in nature, and do not require the test-taker to think critically about the material. Conceptual MCQs, on the other hand, are designed to test one's understanding of the underlying concepts behind the facts.
Conceptual MCQs can be more challenging than factual MCQs, but they are also more rewarding. When you answer a conceptual MCQ correctly, you know that you have a deep understanding of the material. Conceptual MCQs are also more likely to prepare you for real-world situations, where you will often need to apply your knowledge to new and unfamiliar problems.
This SlideShare presentation contains a collection of conceptual GK MCQs on a variety of topics, including:
Science and technology
History and current events
Geography and culture
Literature and the arts
Sports and games
The MCQs in this presentation are designed to test your understanding of the underlying concepts behind the facts. For example, instead of asking you to identify the capital of France, a conceptual MCQ might ask you to explain why Paris is the capital of France.
To answer the MCQs in this presentation correctly, you will need to use your critical thinking skills and apply your knowledge to new and unfamiliar situations. I encourage you to take your time and think carefully about each MCQ before selecting an answer.
Here are some tips for answering conceptual GK MCQs:
Read the MCQ carefully and make sure you understand what it is asking.
Identify the key concepts in the MCQ.
Think about how the key concepts relate to each other.
Consider all of the possible answers before selecting one.
If you are not sure of the answer, try to eliminate the wrong answers first.
I hope you enjoy these conceptual GK MCQs. Challenge yourself to see how many you can answer correctly!
conceptual and GK Q&A on biological moleules.pptxIqra Iftikhar
conceptual and GK Q&A on biological moleules.pptx
This presentation provides an overview of conceptual questions on biological molecules. It covers topics such as the structure and function of carbohydrates, lipids, proteins, and nucleic acids. The presentation is designed for students in an introductory biology course, but it may also be useful for students in other science courses or for anyone who is interested in learning more about biological molecules.
Aerobic respiration is the process of converting food into energy in the presence of oxygen. It is the most efficient way to produce energy from food, and it is how humans and other animals generate most of their energy.
Aerobic respiration occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain.
Glycolysis is the first stage of aerobic respiration. It occurs in the cytoplasm of the cell and does not require oxygen. In glycolysis, one molecule of glucose is broken down into two molecules of pyruvate, with a net gain of two ATP molecules.
The Krebs cycle is the second stage of aerobic respiration. It occurs in the mitochondrial matrix and requires oxygen. In the Krebs cycle, pyruvate is broken down into carbon dioxide and water, with a net gain of two ATP molecules, six NADH molecules, and two FADH2 molecules.
The electron transport chain is the third and final stage of aerobic respiration. It occurs on the inner mitochondrial membrane and requires oxygen. In the electron transport chain, NADH and FADH2 donate electrons to oxygen, which is then used to produce water. This process produces a net gain of 34 ATP molecules.
The overall equation for aerobic respiration is:
C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP
Aerobic respiration is a complex process, but it is essential for life. It is the most efficient way to produce energy from food, and it is how humans and other animals generate most of their energy.
Here are some keywords that can be used to rank a SlideShare presentation on aerobic respiration:
aerobic respiration
glycolysis
Krebs cycle
electron transport chain
ATP
NADH
FADH2
oxygen
carbon dioxide
water
energy
cellular respiration
metabolism
Here is a description of aerobic respiration in 2500 words:
Aerobic respiration is the process of converting food into energy in the presence of oxygen. It is the most efficient way to produce energy from food, and it is how humans and other animals generate most of their energy.
Aerobic respiration occurs in three main stages: glycolysis, the Krebs cycle, and the electron transport chain.
Glycolysis is the first stage of aerobic respiration. It occurs in the cytoplasm of the cell and does not require oxygen. In glycolysis, one molecule of glucose is broken down into two molecules of pyruvate, with a net gain of two ATP molecules.
The equation for glycolysis is:
C6H12O6 → 2CH3COCOO- + 2ATP + 2NADH
The Krebs cycle is the second stage of aerobic respiration. It occurs in the mitochondrial matrix and requires oxygen. In the Krebs cycle, pyruvate is broken down into carbon dioxide and water, with a net gain of two ATP molecules, six NADH molecules, and two FADH2 molecules.
The equation for the Krebs cycle is:
CH3COCOO- + 6O2 → 6CO2 + 6H2O + 2ATP + 6NADH + 2FADH2
The electron transport chain is the third and final stage of aerobic respiration. It occurs on the inner mitochondrial membrane and requires oxygen. In the electron transport chain, NADH and FADH2.
Here is a 2500-word description of blood count range without headings and 30 tags for SlideShare uploading on blood count range using keywords to rank on top:
Blood Count Range
A blood count range is a set of values that are considered normal for the number of different types of blood cells in the blood. Blood cells are responsible for carrying oxygen and nutrients throughout the body, fighting infection, and helping the blood to clot.
There are three main types of blood cells: red blood cells (RBCs), white blood cells (WBCs), and platelets. RBCs carry oxygen from the lungs to the tissues and carbon dioxide from the tissues to the lungs. WBCs fight infection and disease. Platelets help the blood to clot.
The normal blood count range for each type of blood cell is different for men, women, and children. The following table shows the normal blood count range for adults:
Blood cell type Normal range (cells/mm3)
Red blood cells (RBCs) Male: 4.7-6.1 million/mm3; Female: 4.2-5.4 million/mm3
White blood cells (WBCs) 4,500-11,000 cells/mm3
Platelets 150,000-450,000 cells/mm3
A blood count range is important because it can help to diagnose a variety of medical conditions. For example, a high RBC count may indicate polycythemia, a condition in which the body produces too many red blood cells. A low RBC count may indicate anemia, a condition in which the body does not have enough red blood cells to carry oxygen to the tissues. A high WBC count may indicate an infection or inflammation. A low WBC count may indicate a blood disorder or a weakened immune system. A high platelet count may indicate an increased risk of blood clots. A low platelet count may indicate a problem with the bone marrow, where platelets are produced.
Causes of abnormal blood count range
There are a variety of factors that can can cause an abnormal blood count range. These include:
Infection: Infections can cause an increase in white blood cells, as the body fights off the infection.
Inflammation: Inflammation can also cause an increase in white blood cells.
Blood disorders: Blood disorders, such as leukemia and lymphoma, can cause changes in the number and type of blood cells.
Cancer: Cancer can also cause changes in the number and type of blood cells.
Autoimmune diseases: Autoimmune diseases, such as rheumatoid arthritis and lupus, can cause changes in the number and type of blood cells.
Nutrient deficiencies: Nutrient deficiencies, such as iron deficiency anemia and vitamin B12 deficiency anemia, can cause changes in the number and type of blood cells.
Medications: Some medications, such as chemotherapy drugs and corticosteroids, can cause changes in the number and type of blood cells.
Pregnancy: Pregnancy can cause changes in the number and type of blood cells.
Symptoms of abnormal blood count range
The symptoms of an abnormal blood count range can vary depending on the underlying cause.
research presentation bioremediation.pptxIqra Iftikhar
Bioremediation has several advantages over other remediation technologies, such as incineration and landfilling. It is less expensive, more environmentally friendly, and can be used to treat a wider range of pollutants.
Innovation matrix
The innovation matrix is a tool that can be used to assess the novelty and impact of a research project. It is based on four criteria:
Newness: This refers to the degree to which the project is new and original.
Usefulness: This refers to the potential of the project to have a positive impact on society.
Feasibility: This refers to whether the project is technically and economically feasible.
Scalability: This refers to the potential of the project to be scaled up to a larger scale.
Research onion
The research onion is a model that can be used to understand the different layers of research. It is based on the idea that research is a process of progressively refining and narrowing down a topic.
The outer layer of the research onion represents the broadest level of research. This layer includes exploratory research, which is used to develop a general understanding of a topic.
The next layer of the onion represents descriptive research, which is used to provide a more detailed understanding of a topic.
The next layer of the onion represents explanatory research, which is used to explain why something happens.
The final layer of the onion represents predictive research, which is used to predict what will happen in the future.
Research project FYP presentation
The research project FYP presentation is an important part of the final year project. It is an opportunity for students to present their findings to a panel of experts.
The presentation should be well-organized and informative. It should include the following sections:
Introduction: This section should provide a brief overview of the research project, including the topic, the research questions, and the methodology.
Findings: This section should present the main findings of the research project.
Discussion: This section should discuss the implications of the findings and suggest areas for future research.
Conclusion: This section should summarize the main points of the presentation and restate the research questions.
Mitochondria are bean-shaped organelles that are found in the cytoplasm of almost all eukaryotic cells. They are often referred to as the "powerhouse of the cell" because they are responsible for producing most of the cell's energy in the form of adenosine triphosphate (ATP).
Structure of Mitochondria
Each mitochondrion is enclosed by two membranes: an outer membrane and an inner membrane. The outer membrane is smooth and permeable to most molecules, while the inner membrane is highly folded and contains many proteins that are involved in energy production. The space between the outer and inner membranes is called the intermembrane space.
Inside the inner membrane is a fluid-filled matrix that contains mitochondrial DNA, ribosomes, and enzymes. The mitochondrial DNA is different from the DNA in the cell nucleus and encodes its own set of genes. These genes are essential for the production of mitochondrial proteins, which are involved in energy production, cell signaling, and other important cellular functions.
How Mitochondria Work
Mitochondria produce ATP through a process called oxidative phosphorylation. Oxidative phosphorylation is a complex process that involves the transfer of electrons from food molecules to oxygen. This process takes place in the electron transport chain, which is located in the inner mitochondrial membrane.
The electron transport chain is made up of a series of protein complexes that pass electrons from one complex to the next. As the electrons are passed along the chain, they lose energy, which is used to pump protons across the inner mitochondrial membrane. This creates a proton gradient across the membrane, which drives the production of ATP.
ATP is produced by a protein complex called ATP synthase. ATP synthase uses the energy from the proton gradient to synthesize ATP from ADP and inorganic phosphate. ATP is then transported out of the mitochondria and used by the cell to power its various activities.
Other Functions of Mitochondria
In addition to producing ATP, mitochondria also play a role in a number of other cellular processes,
Mitochondria are essential organelles that are involved in a wide range of cellular processes. They play a particularly important role in energy production, but they also play a role in cell signaling, calcium homeostasis, iron metabolism, and detoxification. Mitochondrial diseases can cause a variety of symptoms, but there are treatments that can help to manage the symptoms.
Biology MCQs
Multiple choice questions (MCQs) are a type of objective question that is used to assess a student's knowledge or understanding of a particular topic. MCQs are typically used in standardized tests, such as the SAT and ACT, as well as in classroom assessments.
Biology MCQs can be used to test students on a wide range of topics, including:
Cell biology
Genetics
Evolution
Ecology
Anatomy and physiology
Conceptual questions are a type of MCQ that tests a student's understanding of a concept, rather than their knowledge of a specific fact or detail. Conceptual questions are often more difficult to answer than factual questions, and they require students to think critically about the material.
Here are some conceptual questions on biology MCQs on different topics:
Cell biology
What is the difference between prokaryotic and eukaryotic cells?
What are the functions of the different organelles in a cell?
How does cellular respiration work?
What is photosynthesis?
How does mitosis differ from meiosis?
Genetics
What is the difference between DNA and RNA?
How does protein synthesis work?
What are the different types of mutations?
How do genes determine traits?
What is the difference between dominant and recessive alleles?
Evolution
What is the theory of evolution?
What is natural selection?
What is genetic drift?
What is speciation?
What is the evidence of evolution?
Ecology
What is the difference between a population and a community?
What is an ecosystem?
What are the different types of food chains?
What is the carbon cycle?
What is the water cycle?
Anatomy and physiology
What are the different organ systems in the human body?
How does the circulatory system work?
How does the respiratory system work?
How does the digestive system work?
How does the nervous system work?
Here are some additional conceptual questions on biology MCQs:
What is the difference between a biotic and abiotic factor?
What is homeostasis?
What is the difference between a virus and a bacterium?
What is the difference between a fungus and a plant?
What is the difference between a plant and an animal?
How to answer conceptual questions on biology MCQs
To answer conceptual questions on biology MCQs, you need to have a good understanding of the underlying concepts. You should also be able to apply these concepts to different situations.
Here are some tips for answering conceptual questions on biology MCQs:
Read the question carefully and make sure you understand what is being asked.
Try to identify the key concept that is being tested.
Think about how the concept applies to the situation described in the question.
Eliminate any answer choices that are clearly wrong.
If you are unsure of the answer, choose the answer choice that seems most likely to be correct.
Biology MCQs
Multiple choice questions (MCQs) are a type of objective question that is used to assess a student's knowledge or understanding of a particular topic. MCQs are typically used in standardized tests, such as the SAT and ACT, as well as in classroom assessments.
Biology MCQs can be used to test students on a wide range of topics, including:
Cell biology
Genetics
Evolution
Ecology
Anatomy and physiology
Conceptual questions are a type of MCQ that tests a student's understanding of a concept, rather than their knowledge of a specific fact or detail. Conceptual questions are often more difficult to answer than factual questions, and they require students to think critically about the material.
Here are some conceptual questions on biology MCQs on different topics:
Cell biology
What is the difference between prokaryotic and eukaryotic cells?
What are the functions of the different organelles in a cell?
How does cellular respiration work?
What is photosynthesis?
How does mitosis differ from meiosis?
Genetics
What is the difference between DNA and RNA?
How does protein synthesis work?
What are the different types of mutations?
How do genes determine traits?
What is the difference between dominant and recessive alleles?
Evolution
What is the theory of evolution?
What is natural selection?
What is genetic drift?
What is speciation?
What is the evidence of evolution?
Ecology
What is the difference between a population and a community?
What is an ecosystem?
What are the different types of food chains?
What is the carbon cycle?
What is the water cycle?
Anatomy and physiology
What are the different organ systems in the human body?
How does the circulatory system work?
How does the respiratory system work?
How does the digestive system work?
How does the nervous system work?
Here are some additional conceptual questions on biology MCQs:
What is the difference between a biotic and abiotic factor?
What is homeostasis?
What is the difference between a virus and a bacterium?
What is the difference between a fungus and a plant?
What is the difference between a plant and an animal?
How to answer conceptual questions on biology MCQs
To answer conceptual questions on biology MCQs, you need to have a good understanding of the underlying concepts. You should also be able to apply these concepts to different situations.
Here are some tips for answering conceptual questions on biology MCQs:
Read the question carefully and make sure you understand what is being asked.
Try to identify the key concept that is being tested.
Think about how the concept applies to the situation described in the question.
Eliminate any answer choices that are clearly wrong.
If you are unsure of the answer, choose the answer choice that seems most likely to be correct.
General knowledge MCQs are a popular way to test one's knowledge of a wide range of topics. However, many MCQs are simply factual in nature, and do not require the test-taker to think critically about the material. Conceptual MCQs, on the other hand, are designed to test one's understanding of the underlying concepts behind the facts.
Conceptual MCQs can be more challenging than factual MCQs, but they are also more rewarding. When you answer a conceptual MCQ correctly, you know that you have a deep understanding of the material. Conceptual MCQs are also more likely to prepare you for real-world situations, where you will often need to apply your knowledge to new and unfamiliar problems.
This SlideShare presentation contains a collection of conceptual GK MCQs on a variety of topics, including:
Science and technology
History and current events
Geography and culture
Literature and the arts
Sports and games
The MCQs in this presentation are designed to test your understanding of the underlying concepts behind the facts. For example, instead of asking you to identify the capital of France, a conceptual MCQ might ask you to explain why Paris is the capital of France.
To answer the MCQs in this presentation correctly, you will need to use your critical thinking skills and apply your knowledge to new and unfamiliar situations. I encourage you to take your time and think carefully about each MCQ before selecting an answer.
Here are some tips for answering conceptual GK MCQs:
Read the MCQ carefully and make sure you understand what it is asking.
Identify the key concepts in the MCQ.
Think about how the key concepts relate to each other.
Consider all of the possible answers before selecting one.
If you are not sure of the answer, try to eliminate the wrong answers first.
I hope you enjoy these conceptual GK MCQs. Challenge yourself to see how many you can answer correctly!
conceptual and GK Q&A on biological moleules.pptxIqra Iftikhar
conceptual and GK Q&A on biological moleules.pptx
This presentation provides an overview of conceptual questions on biological molecules. It covers topics such as the structure and function of carbohydrates, lipids, proteins, and nucleic acids. The presentation is designed for students in an introductory biology course, but it may also be useful for students in other science courses or for anyone who is interested in learning more about biological molecules.
Biomass is organic matter that comes from living organisms, such as plants and animals. It can be used to produce energy, heat, and other products. Biomass is a renewable energy source, meaning that it can be replaced as it is used.
Biology is the study of life. It is a broad and diverse field that encompasses everything from the smallest molecules to the largest organisms. Biologists study the structure, function, growth, origin, evolution, and distribution of living organisms.
This Slideshare presentation will provide a brief overview of the field of biology. It will cover the following topics:
What is life?
The different branches of biology
The scientific method
Some of the most important discoveries in biology
The future of biology
This presentation is intended for a general audience and is designed to be informative and engaging. It is suitable for students, teachers, and anyone else who is interested in learning more about biology.
Notch signaling is a highly conserved and essential cellular communication pathway that plays a crucial role in various developmental processes and tissue homeostasis. Here's a brief description suitable for a SlideShare presentation:
**Slide 1: Title**
*Notch Signaling: Unlocking Cellular Communication*
**Slide 2: Introduction**
- Notch signaling is a fundamental pathway regulating cell-to-cell communication.
- It influences diverse processes from embryogenesis to adult tissue maintenance.
**Slide 3: Key Components**
- Notch receptors: Proteins on cell membranes.
- Ligands: Proteins binding to receptors.
- Intracellular domain: The active signaling component.
**Slide 4: How It Works**
- Notch receptors interact with ligands on neighboring cells.
- This interaction triggers cleavage and release of the Notch intracellular domain.
- Intracellular domain translocates to the nucleus.
**Slide 5: Role in Development**
- Controls cell fate decisions during embryonic development.
- Ensures proper tissue differentiation and patterning.
**Slide 6: Adult Tissue Homeostasis**
- Maintains tissues by regulating cell proliferation and differentiation.
- Essential for processes like stem cell maintenance.
**Slide 7: Notch in Diseases**
- Dysregulation linked to cancer, cardiovascular diseases, and developmental disorders.
- Potential therapeutic target.
**Slide 8: Notch Signaling in Research**
- Continuously studied for its diverse roles.
- Target for drug development and regenerative medicine.
**Slide 9: Conclusion**
- Notch signaling is a pivotal pathway in cellular communication.
- Understanding its intricacies can lead to novel treatments and insights into development.
**Slide 10: Questions**
- Open the floor for questions and discussion.
This concise presentation provides a basic overview of Notch signaling, its components, functions, and relevance in both development and disease. You can expand on each slide with more detailed information as needed.
Nf-kB signalling pathway / role of Nf-kB in immunity |canonical and non canon...Iqra Iftikhar
Creating a SlideShare presentation on the NF-kB signaling pathway is a great way to share information about this important cellular process. Here's a brief outline and description of key points you can include in your presentation:
Slide 1: Title
- Title: "NF-kB Signaling Pathway: Unveiling Cellular Regulation"
Slide 2: Introduction
- Introduction to NF-kB: Explain that NF-kB (Nuclear Factor-kappa B) is a crucial transcription factor involved in regulating gene expression and plays a pivotal role in immune responses, inflammation, and cell survival.
Slide 3: Structure of NF-kB
- Describe the structure of NF-kB, including its different subunits and how they combine to form active NF-kB dimers.
Slide 4: Signaling Pathway Overview
- Provide an overview of the NF-kB signaling pathway, emphasizing that it is activated in response to various stimuli, such as cytokines, pathogens, and stress.
Slide 5: Activation of NF-kB
- Explain how NF-kB is activated, including the role of IkappaB (Inhibitor of kappa B) proteins and the phosphorylation and degradation process.
Slide 6: NF-kB Targets
- Discuss the types of genes that NF-kB regulates, including those involved in inflammation, cell survival, and immune responses.
Slide 7: Regulation of NF-kB
- Describe the mechanisms that control NF-kB activity, such as negative feedback loops and other regulatory proteins.
Slide 8: NF-kB in Diseases
- Highlight the significance of NF-kB in various diseases, such as cancer, autoimmune disorders, and chronic inflammation.
Slide 9: Therapeutic Implications
- Discuss how targeting the NF-kB pathway has therapeutic implications and potential treatments for NF-kB-related diseases.
Slide 10: Conclusion
- Summarize the key points discussed in the presentation and emphasize the importance of understanding NF-kB signaling in cellular processes and disease.
Slide 11: Questions and Discussion
- Open the floor for questions and discussions from your audience.
Slide 12: References
- List the sources and references used in your presentation.
Ensure that your slides are visually engaging with relevant images, diagrams, and concise text. This structure will help your audience understand the NF-kB signaling pathway and its significance in cellular regulation and disease.
What is convergent extension? What does CONVERGENT EXTENSION mean? Biology IkqraIqra Iftikhar
What is the convergent extension? What does CONVERGENT EXTENSION mean? Biology Ikqra
Convergent extension during Gastrulation/dorsal blastopore Frog development |Biology |IQ learning
The process by which the tissue of an embryo is remodelled to converge (narrow) along one axis and extend (elongate) down a perpendicular axis through cellular movement is known as convergence extension (CE), sometimes known as convergence and extension (C&E). An illustration of this process is when the lateral tissues, which make up the left and right sides of the embryo, move inward toward the dorsal midline, lengthening the anteroposterior axis (the axis drawn between the head and tail end of an embryo) (the middle of the back of the animal). This process, which takes place in both vertebrate and invertebrate embryos during gastrulation, neurulation, axis elongation, and organogenesis, is essential for determining the body plan throughout embryogenesis.
Non-segmental vitiligo is the most common of the 2 types of vitiligo. It is often characterized by white patches that are generalized (seen anywhere on your body), and symmetrical (if it’s on one side of your body, it’s in the same place on the other side.
A disorder called vitiligo (pronounced "vit-ih-LIE-go") results in areas of the skin losing their pigment. With time, the discoloured spots often enlarge. Any portion of the body's skin might be impacted by the illness. The tongue and hair can both be impacted by it.
Melanin often controls the hue of skin and hair. Melanin-producing cells die or cease working, which causes vitiligo. All skin tones are affected by vitiligo, however, those with dark or black skin may notice it more. Neither the ailment is infectious nor life-threatening. It could cause tension or make you feel self-conscious.
Signs of vitiligo include:
Skin colour loss typically first manifests in patches on the hands, face, and regions near body openings and the genitalia.
premature greying or whitening of your eyebrows, beard, eyelashes, or scalp hair
tissues that border the interior of the mouth and nose losing colour (mucous membranes)
Although vitiligo can begin at any age, it often manifests before the age of 30.
Auto association, neural Network Model |Artificial neural network |Biology |I...Iqra Iftikhar
Neural networks consist of nodes and connections There are multiple layers: An input layer, where information enters, one or more hidden layers, where information is transformed, and an output layer where the final prediction or results is presented.
The connections have different strengths, also referred to as
weights. During the training of the model, these weights are constantly updated. This is how the model learns particular features of the input information, which helps it to optimize the output.
Neural networks are not only useful for neuroscience. Their biggest applications happen outside of neuroscience, for various reasons
if you have any questions feel free to ask, I will respond to your questions
#autoassociation
#neuralnetworkmodel
#Biomasterrr
#neural network model
https://youtu.be/DUFYRBALx94
video lecture link 🔗
This lecture explains the cell cycle checkpoints in cell division. Cell cycle checkpoints are really important stages of the cell cycle that helps a cell regulate the cell cycle and to cause the cell to live or die based on the modification of the cell cycle pathways.
Stay tuned to this video lecture to understand the answers to the following questions -
What is a cell cycle checkpoint?
How does the cell cycle checkpoint work?
What are the different cell cycle checkpoints?
How did cell cycle checkpoints work?
Cell cycle checkpoint regulation?
Regulation of the cell cycle by the cell cycle checkpoint.
Cryopreservation/of cells and tissues| Application, mechanism, advantages |I...Iqra Iftikhar
Video link:
https://youtu.be/XmBA4DwMWFw
What is used for cryopreservation?
What cryopreservation is used for?
Why is cryopreservation needed?
Principal of cryopreservation
Natural cryopreservation
Microscopic multicellular organisms called tardigrades can withstand freezing by displacing most of their internal water with the sugar trehalose, preventing it from crystallising and harming cell membranes.
By cooling to shallow temperatures (typically 80 °C or 112 °F using solid carbon dioxide or 196 °C (321 °F) using liquid nitrogen), organelles, cells, tissues, extracellular matrix, organs, or any other biological constructs susceptible to damage caused by uncontrolled chemical kinetics are preserved. If the temperature is low enough, all enzymatic or chemical activity that could harm the natural material is effectively halted. The goal of cryopreservation techniques is to freeze objects at extremely low temperatures without inflicting additional harm from ice crystal growth
Risk factors
The following are the primary dangers of embryo cryopreservation: damage caused by freezing embryos. unfrozen embryos that are not viable. failure to conceive after thawing and implanting embryos.
what is Gene bookmarking / Gene Bookmarking examples |Biology |IQ learningIqra Iftikhar
https://youtu.be/Ue6Hx6MqATw
video link
A proposed method of transmitting gene expression instructions through cell division is known as bookmarking.
What is the importance of gene bookmarking
When bookmarking is done
Criteria for gene bookmarking
Mechanism of gene bookmarking
Example of gene bookmarking
Gene Bookmarking by the Heat-Shock Transcription Factor
Difference between oxidative and substrate level phosphorylationIqra Iftikhar
what is the difference between oxidative and substrate level phosphorylation?
Oxidative phosphorylation
Substrate level phosphorylation
Oxidative vs substrate level phosphorylation
Oxidative phosphorylation vs substrate level phosphorylation
What is oxidative phosphorylation in Urdu/English /Hindi
What is substrate-level phosphorylation in Urdu /Hindi
What is the difference between oxidative phosphorylation and substrate level phosphorylation
Oxidative phosphorylation in mitochondria
How oxidative phosphorylation is different from substrate level phosphorylation
If any questions just drop a comment below
Biotechnology MCQs/biotechnology MCQs/most important Biotechnology MCQs |Biol...Iqra Iftikhar
A broad area of biology called "biotechnology" uses living things to create new goods that will benefit people. It has uses in a number of industries, including agriculture and medicine. It takes advantage of cellular and molecular processes to create goods and technology that benefit both humans and the environment.
A few MCQs on biotechnology are provided in this lesson/video to assist the students to assess their conceptual understanding. Additionally, the solutions are given for your reference.
Biomass is organic matter that comes from living organisms, such as plants and animals. It can be used to produce energy, heat, and other products. Biomass is a renewable energy source, meaning that it can be replaced as it is used.
Biology is the study of life. It is a broad and diverse field that encompasses everything from the smallest molecules to the largest organisms. Biologists study the structure, function, growth, origin, evolution, and distribution of living organisms.
This Slideshare presentation will provide a brief overview of the field of biology. It will cover the following topics:
What is life?
The different branches of biology
The scientific method
Some of the most important discoveries in biology
The future of biology
This presentation is intended for a general audience and is designed to be informative and engaging. It is suitable for students, teachers, and anyone else who is interested in learning more about biology.
Notch signaling is a highly conserved and essential cellular communication pathway that plays a crucial role in various developmental processes and tissue homeostasis. Here's a brief description suitable for a SlideShare presentation:
**Slide 1: Title**
*Notch Signaling: Unlocking Cellular Communication*
**Slide 2: Introduction**
- Notch signaling is a fundamental pathway regulating cell-to-cell communication.
- It influences diverse processes from embryogenesis to adult tissue maintenance.
**Slide 3: Key Components**
- Notch receptors: Proteins on cell membranes.
- Ligands: Proteins binding to receptors.
- Intracellular domain: The active signaling component.
**Slide 4: How It Works**
- Notch receptors interact with ligands on neighboring cells.
- This interaction triggers cleavage and release of the Notch intracellular domain.
- Intracellular domain translocates to the nucleus.
**Slide 5: Role in Development**
- Controls cell fate decisions during embryonic development.
- Ensures proper tissue differentiation and patterning.
**Slide 6: Adult Tissue Homeostasis**
- Maintains tissues by regulating cell proliferation and differentiation.
- Essential for processes like stem cell maintenance.
**Slide 7: Notch in Diseases**
- Dysregulation linked to cancer, cardiovascular diseases, and developmental disorders.
- Potential therapeutic target.
**Slide 8: Notch Signaling in Research**
- Continuously studied for its diverse roles.
- Target for drug development and regenerative medicine.
**Slide 9: Conclusion**
- Notch signaling is a pivotal pathway in cellular communication.
- Understanding its intricacies can lead to novel treatments and insights into development.
**Slide 10: Questions**
- Open the floor for questions and discussion.
This concise presentation provides a basic overview of Notch signaling, its components, functions, and relevance in both development and disease. You can expand on each slide with more detailed information as needed.
Nf-kB signalling pathway / role of Nf-kB in immunity |canonical and non canon...Iqra Iftikhar
Creating a SlideShare presentation on the NF-kB signaling pathway is a great way to share information about this important cellular process. Here's a brief outline and description of key points you can include in your presentation:
Slide 1: Title
- Title: "NF-kB Signaling Pathway: Unveiling Cellular Regulation"
Slide 2: Introduction
- Introduction to NF-kB: Explain that NF-kB (Nuclear Factor-kappa B) is a crucial transcription factor involved in regulating gene expression and plays a pivotal role in immune responses, inflammation, and cell survival.
Slide 3: Structure of NF-kB
- Describe the structure of NF-kB, including its different subunits and how they combine to form active NF-kB dimers.
Slide 4: Signaling Pathway Overview
- Provide an overview of the NF-kB signaling pathway, emphasizing that it is activated in response to various stimuli, such as cytokines, pathogens, and stress.
Slide 5: Activation of NF-kB
- Explain how NF-kB is activated, including the role of IkappaB (Inhibitor of kappa B) proteins and the phosphorylation and degradation process.
Slide 6: NF-kB Targets
- Discuss the types of genes that NF-kB regulates, including those involved in inflammation, cell survival, and immune responses.
Slide 7: Regulation of NF-kB
- Describe the mechanisms that control NF-kB activity, such as negative feedback loops and other regulatory proteins.
Slide 8: NF-kB in Diseases
- Highlight the significance of NF-kB in various diseases, such as cancer, autoimmune disorders, and chronic inflammation.
Slide 9: Therapeutic Implications
- Discuss how targeting the NF-kB pathway has therapeutic implications and potential treatments for NF-kB-related diseases.
Slide 10: Conclusion
- Summarize the key points discussed in the presentation and emphasize the importance of understanding NF-kB signaling in cellular processes and disease.
Slide 11: Questions and Discussion
- Open the floor for questions and discussions from your audience.
Slide 12: References
- List the sources and references used in your presentation.
Ensure that your slides are visually engaging with relevant images, diagrams, and concise text. This structure will help your audience understand the NF-kB signaling pathway and its significance in cellular regulation and disease.
What is convergent extension? What does CONVERGENT EXTENSION mean? Biology IkqraIqra Iftikhar
What is the convergent extension? What does CONVERGENT EXTENSION mean? Biology Ikqra
Convergent extension during Gastrulation/dorsal blastopore Frog development |Biology |IQ learning
The process by which the tissue of an embryo is remodelled to converge (narrow) along one axis and extend (elongate) down a perpendicular axis through cellular movement is known as convergence extension (CE), sometimes known as convergence and extension (C&E). An illustration of this process is when the lateral tissues, which make up the left and right sides of the embryo, move inward toward the dorsal midline, lengthening the anteroposterior axis (the axis drawn between the head and tail end of an embryo) (the middle of the back of the animal). This process, which takes place in both vertebrate and invertebrate embryos during gastrulation, neurulation, axis elongation, and organogenesis, is essential for determining the body plan throughout embryogenesis.
Non-segmental vitiligo is the most common of the 2 types of vitiligo. It is often characterized by white patches that are generalized (seen anywhere on your body), and symmetrical (if it’s on one side of your body, it’s in the same place on the other side.
A disorder called vitiligo (pronounced "vit-ih-LIE-go") results in areas of the skin losing their pigment. With time, the discoloured spots often enlarge. Any portion of the body's skin might be impacted by the illness. The tongue and hair can both be impacted by it.
Melanin often controls the hue of skin and hair. Melanin-producing cells die or cease working, which causes vitiligo. All skin tones are affected by vitiligo, however, those with dark or black skin may notice it more. Neither the ailment is infectious nor life-threatening. It could cause tension or make you feel self-conscious.
Signs of vitiligo include:
Skin colour loss typically first manifests in patches on the hands, face, and regions near body openings and the genitalia.
premature greying or whitening of your eyebrows, beard, eyelashes, or scalp hair
tissues that border the interior of the mouth and nose losing colour (mucous membranes)
Although vitiligo can begin at any age, it often manifests before the age of 30.
Auto association, neural Network Model |Artificial neural network |Biology |I...Iqra Iftikhar
Neural networks consist of nodes and connections There are multiple layers: An input layer, where information enters, one or more hidden layers, where information is transformed, and an output layer where the final prediction or results is presented.
The connections have different strengths, also referred to as
weights. During the training of the model, these weights are constantly updated. This is how the model learns particular features of the input information, which helps it to optimize the output.
Neural networks are not only useful for neuroscience. Their biggest applications happen outside of neuroscience, for various reasons
if you have any questions feel free to ask, I will respond to your questions
#autoassociation
#neuralnetworkmodel
#Biomasterrr
#neural network model
https://youtu.be/DUFYRBALx94
video lecture link 🔗
This lecture explains the cell cycle checkpoints in cell division. Cell cycle checkpoints are really important stages of the cell cycle that helps a cell regulate the cell cycle and to cause the cell to live or die based on the modification of the cell cycle pathways.
Stay tuned to this video lecture to understand the answers to the following questions -
What is a cell cycle checkpoint?
How does the cell cycle checkpoint work?
What are the different cell cycle checkpoints?
How did cell cycle checkpoints work?
Cell cycle checkpoint regulation?
Regulation of the cell cycle by the cell cycle checkpoint.
Cryopreservation/of cells and tissues| Application, mechanism, advantages |I...Iqra Iftikhar
Video link:
https://youtu.be/XmBA4DwMWFw
What is used for cryopreservation?
What cryopreservation is used for?
Why is cryopreservation needed?
Principal of cryopreservation
Natural cryopreservation
Microscopic multicellular organisms called tardigrades can withstand freezing by displacing most of their internal water with the sugar trehalose, preventing it from crystallising and harming cell membranes.
By cooling to shallow temperatures (typically 80 °C or 112 °F using solid carbon dioxide or 196 °C (321 °F) using liquid nitrogen), organelles, cells, tissues, extracellular matrix, organs, or any other biological constructs susceptible to damage caused by uncontrolled chemical kinetics are preserved. If the temperature is low enough, all enzymatic or chemical activity that could harm the natural material is effectively halted. The goal of cryopreservation techniques is to freeze objects at extremely low temperatures without inflicting additional harm from ice crystal growth
Risk factors
The following are the primary dangers of embryo cryopreservation: damage caused by freezing embryos. unfrozen embryos that are not viable. failure to conceive after thawing and implanting embryos.
what is Gene bookmarking / Gene Bookmarking examples |Biology |IQ learningIqra Iftikhar
https://youtu.be/Ue6Hx6MqATw
video link
A proposed method of transmitting gene expression instructions through cell division is known as bookmarking.
What is the importance of gene bookmarking
When bookmarking is done
Criteria for gene bookmarking
Mechanism of gene bookmarking
Example of gene bookmarking
Gene Bookmarking by the Heat-Shock Transcription Factor
Difference between oxidative and substrate level phosphorylationIqra Iftikhar
what is the difference between oxidative and substrate level phosphorylation?
Oxidative phosphorylation
Substrate level phosphorylation
Oxidative vs substrate level phosphorylation
Oxidative phosphorylation vs substrate level phosphorylation
What is oxidative phosphorylation in Urdu/English /Hindi
What is substrate-level phosphorylation in Urdu /Hindi
What is the difference between oxidative phosphorylation and substrate level phosphorylation
Oxidative phosphorylation in mitochondria
How oxidative phosphorylation is different from substrate level phosphorylation
If any questions just drop a comment below
Biotechnology MCQs/biotechnology MCQs/most important Biotechnology MCQs |Biol...Iqra Iftikhar
A broad area of biology called "biotechnology" uses living things to create new goods that will benefit people. It has uses in a number of industries, including agriculture and medicine. It takes advantage of cellular and molecular processes to create goods and technology that benefit both humans and the environment.
A few MCQs on biotechnology are provided in this lesson/video to assist the students to assess their conceptual understanding. Additionally, the solutions are given for your reference.
3. 1. Which of the following process uses
proofreading to increase its accuracy
a) Transcription
b) DNA replication
c) Recombination
d) Peptide bond formation
b) DNA replication
4. ANSWER AND EXPLANATION
◉ DNA replication is a highly accurate process in part because of
the Proof reading of newly synthesized DNA that occurs
removing and fixing based miss matches this is not true for RNA
synthesis during transcription or any of the Other processes
5. 2. Which of the following is not an organelle
a) nucleus
b) Golgi apparatus
c) lysosome
d) chlorophyll
e) chloroplast
d. chlorophyll
6. ANSWER AND EXPLANATION
◉ Chlorophyll is an essential component of an organelle the
chloroplast but it is a chemical note and organelle
7. 3. Which of the following are correctly associated
a) RNA; thymin
b) DNA ; uracil
c) RNA replication
d) mRNA; picks up amino acids
e) RNA; ribose sugar
e. RNA; ribose sugar
8. ANSWER AND EXPLANATION
◉ RNA is made up of sugar bound to a phosphate group which is
done to one of the four basis it is also correct by having uracil
as one of its bases rather than Thai May
9. 4. the tRNA anticodon for the aminoacid valine is CAA(3* to
5*). what is the mRNA codon for valine(5* to 3*)?
1. TTG
2. GGU
3. CCA
4. CCG
5. GUU
5. GUU
10. ANSWER AND EXPLANATION
◉ mRNA includes a coded base sequence called a codon. tRNA
which carries the amino acids to the mRNA and the ribosome,
has a complementary strand called the anticodon.
◉ Therefore a tRNA with an anticodon of CAA should match the
mRNA codon GUU.
◉ Remember that in RNA, adenine binds with Uracil, and Guanin
ponds with cytosine.
◉ Also nucleic acid strands always Bond with one strand 5* to 3*
and the other in the opposite direction 3* to 5*
11. 5. The source of oxygen given off in photosynthesis is
1. water
2. CO2
3. glucose
4. starch
5. chlorophyll
1. Water
12. ANSWER AND EXPLANATION
◉ In the light reaction light splits water into excited electrons H,
and O2. the excited electrons go on to form ATP and the H
electrons and incorporated in to carbohydrates produced
during the dark reaction. O2 is released into the environment as
a waste product of this reaction.
13. 6. Which of the following is not a lipid
1. Waxes
2. Steroids
3. Carotenoids
4. Albumins
5. Lecithin
4. Albumins
15. 7. Which is not a characteristic of Proteins?
1. they contain genetic information
2. they can act as hormones
3. they can catalyze chemical reactions
4. they act in cell membrane trafficking
5. they can bind foreign materials
1. they contain genetic information
16. ANSWER AND EXPLANATION
◉ DNA is the only molecule in eukaryotes that contains gene.
◉ Protein may function as hormone enzyme and antibodies
17. 8. RER differs from the SER due to the presence of
1. lysosomes
2. ribosomes
3. mitochondria
4. Golgi apparatus
5. histones
2. Ribosomes
18. ANSWER AND EXPLANATION
◉ Ribosomes the site of protein production give the Arya its
characteristics appearance sections of ER lined with ribosome
where proteins are produced and then transported to the
appropriate areas