This document discusses the nutritional requirements of microbes. It explains that microbes require a variety of essential elements for growth and development, including carbon, oxygen, hydrogen, phosphorus, and sulfur. Nutrients can be classified as macro or micronutrients. Macro nutrients like carbon, nitrogen, and phosphorus make up 95% of a microbial cell's dry weight. Carbon is particularly important as the main constituent of organic materials. Microbes also require trace elements and growth factors. The document describes different types of microbes based on their carbon, energy, and electron sources, including photoautotrophs, chemoautotrophs, heterotrophs, and more. Saprophytic, symbiotic, and
Physiology of Bacteria. Type & Mechanism of Bacteria Nutrition Eneutron
This document discusses the physiology of bacteria and the process of isolating a pure culture of aerobic bacteria. It covers bacteria metabolism and nutrition, including catabolism, anabolism, nutrient requirements, and mechanisms of nutrient transport. It also describes different types of bacteria based on their nutrient sources and how phototrophs and chemotrophs obtain energy. The document concludes by outlining the multi-stage process used to isolate a pure culture of aerobic bacteria, including seeding a sample and investigating cultural properties to obtain an isolated colony.
Microorganisms can be classified based on their nutritional requirements and environmental tolerances. There are three main ways they are classified:
1. By their carbon and energy sources. Organisms are either heterotrophs that require organic carbon or autotrophs that can use carbon dioxide. They also differ in their energy sources as either phototrophs using light or chemotrophs using chemicals.
2. By their oxygen requirements. Microbes are aerobic and require oxygen, anaerobic and live without oxygen, or facultative and can live with or without oxygen.
3. By their temperature, pH, and other environmental tolerances. Organisms have optimal and minimum conditions for growth and are classified
This document discusses the nutritional and physical requirements for bacterial growth as well as the bacterial growth curve. It outlines that bacteria require carbon, nitrogen, phosphorus, inorganic ions, growth factors, water, appropriate temperature, pH, and oxygen levels to grow. The bacterial growth curve consists of four phases - lag phase, log or exponential phase, stationary phase, and death or decline phase - which describe the changes in growth rate over time as nutrients are depleted and waste accumulates.
This document provides an overview of the classification of microorganisms. It discusses how organisms are grouped into three domains - archaea, bacteria, and eukarya - based on cell structure. Within these domains, microorganisms can be further classified based on various characteristics like cell structure, metabolism, temperature and pH optima, oxygen requirements, morphology, gram staining, presence of flagella, and ability to form spores. Bacteria, fungi, and archaea are described in more detail with examples provided for different groups.
Lect. 3 (microbial nutrition and cultivation)Osama Rifat
Microbial growth conditions depend on various nutrients and environmental factors. Microorganisms require macronutrients like carbon, nitrogen, phosphorus and micronutrients in small amounts. They also need growth factors like vitamins and amino acids. Temperature, pH, and oxygen levels influence microbial growth. Pure cultures can be isolated using techniques like streak plating that allow single microbial cells to grow into separate colonies.
This document discusses the physiology and metabolism of bacteria. It explains that bacteria metabolize organic and inorganic substrates to generate energy through catabolic pathways, while using this energy for anabolic pathways to synthesize cellular components. The four main components of bacterial cells are water, organic matter like proteins and carbohydrates, and inorganic minerals. Bacteria are classified based on their nutritional requirements, oxygen usage, and optimal temperature for growth. Enzymes play a key role in bacterial metabolism by catalyzing biochemical reactions. Bacterial growth occurs through binary fission and follows a characteristic growth curve with lag, logarithmic, stationary, and death phases.
This document discusses the nutritional requirements of microbes. It explains that microbes require a variety of essential elements for growth and development, including carbon, oxygen, hydrogen, phosphorus, and sulfur. Nutrients can be classified as macro or micronutrients. Macro nutrients like carbon, nitrogen, and phosphorus make up 95% of a microbial cell's dry weight. Carbon is particularly important as the main constituent of organic materials. Microbes also require trace elements and growth factors. The document describes different types of microbes based on their carbon, energy, and electron sources, including photoautotrophs, chemoautotrophs, heterotrophs, and more. Saprophytic, symbiotic, and
Physiology of Bacteria. Type & Mechanism of Bacteria Nutrition Eneutron
This document discusses the physiology of bacteria and the process of isolating a pure culture of aerobic bacteria. It covers bacteria metabolism and nutrition, including catabolism, anabolism, nutrient requirements, and mechanisms of nutrient transport. It also describes different types of bacteria based on their nutrient sources and how phototrophs and chemotrophs obtain energy. The document concludes by outlining the multi-stage process used to isolate a pure culture of aerobic bacteria, including seeding a sample and investigating cultural properties to obtain an isolated colony.
Microorganisms can be classified based on their nutritional requirements and environmental tolerances. There are three main ways they are classified:
1. By their carbon and energy sources. Organisms are either heterotrophs that require organic carbon or autotrophs that can use carbon dioxide. They also differ in their energy sources as either phototrophs using light or chemotrophs using chemicals.
2. By their oxygen requirements. Microbes are aerobic and require oxygen, anaerobic and live without oxygen, or facultative and can live with or without oxygen.
3. By their temperature, pH, and other environmental tolerances. Organisms have optimal and minimum conditions for growth and are classified
This document discusses the nutritional and physical requirements for bacterial growth as well as the bacterial growth curve. It outlines that bacteria require carbon, nitrogen, phosphorus, inorganic ions, growth factors, water, appropriate temperature, pH, and oxygen levels to grow. The bacterial growth curve consists of four phases - lag phase, log or exponential phase, stationary phase, and death or decline phase - which describe the changes in growth rate over time as nutrients are depleted and waste accumulates.
This document provides an overview of the classification of microorganisms. It discusses how organisms are grouped into three domains - archaea, bacteria, and eukarya - based on cell structure. Within these domains, microorganisms can be further classified based on various characteristics like cell structure, metabolism, temperature and pH optima, oxygen requirements, morphology, gram staining, presence of flagella, and ability to form spores. Bacteria, fungi, and archaea are described in more detail with examples provided for different groups.
Lect. 3 (microbial nutrition and cultivation)Osama Rifat
Microbial growth conditions depend on various nutrients and environmental factors. Microorganisms require macronutrients like carbon, nitrogen, phosphorus and micronutrients in small amounts. They also need growth factors like vitamins and amino acids. Temperature, pH, and oxygen levels influence microbial growth. Pure cultures can be isolated using techniques like streak plating that allow single microbial cells to grow into separate colonies.
This document discusses the physiology and metabolism of bacteria. It explains that bacteria metabolize organic and inorganic substrates to generate energy through catabolic pathways, while using this energy for anabolic pathways to synthesize cellular components. The four main components of bacterial cells are water, organic matter like proteins and carbohydrates, and inorganic minerals. Bacteria are classified based on their nutritional requirements, oxygen usage, and optimal temperature for growth. Enzymes play a key role in bacterial metabolism by catalyzing biochemical reactions. Bacterial growth occurs through binary fission and follows a characteristic growth curve with lag, logarithmic, stationary, and death phases.
This document discusses the physiology and metabolism of bacteria. It explains that bacteria metabolize organic and inorganic substrates to generate energy through catabolic pathways, while using this energy for anabolic pathways to synthesize cellular components. The four main components of bacterial cells are water, organic matter like proteins and carbohydrates, and inorganic minerals. Bacteria are classified based on their nutritional requirements, oxygen usage, and optimal temperature for growth. Enzymes play a key role in bacterial metabolism by catalyzing biochemical reactions. Bacterial growth occurs through binary fission and follows a characteristic growth curve with lag, logarithmic, stationary, and death phases.
The document discusses nutrition in bacteria. It explains that bacteria require carbon, hydrogen, oxygen, nitrogen, metals, and water for their biochemical processes. Bacteria are classified as autotrophs or heterotrophs based on their ability to produce or require organic carbon compounds. Autotrophs can produce organic compounds from inorganic sources like carbon dioxide, while heterotrophs require organic carbon sources. The document further describes different types of autotrophs and heterotrophs based on their energy and carbon sources. These include photoautotrophs, chemoautotrophs, photoheterotrophs, and chemoheterotrophs. Parasitic, saprophytic, and symbiotic bacteria are also discussed
Microorganisms require nutrients for growth and metabolism. There are two categories of essential nutrients: macro-nutrients which are needed in large amounts to maintain cell structure and metabolism, and micro-nutrients which are needed in trace amounts to help enzyme function and maintain protein structure. Microorganisms obtain carbon, nitrogen, and other macro-nutrients from both inorganic and organic sources, while micro-nutrients like metals serve as catalysts in enzymes. Microorganisms are also classified based on their energy and electron sources as phototrophs or chemotrophs, and lithotrophs or organotrophs.
This presentation involves with the methodology and principles of the microbial photosynthesis such as autotrophs and chemotrophs (natural and chemical methods)
This document discusses bacterial nutrition and modes of nutrition in bacteria. It explains that bacteria require carbon, nitrogen, phosphorus, iron and other molecules as nutrients. Bacteria can be classified based on their energy source as phototrophs which use light, or chemotrophs which use chemical compounds. They can also be classified based on their electron source as lithotrophs which use inorganic compounds or organotrophs which use organic compounds. The document then discusses autotrophic and heterotrophic bacteria and their carbon sources, as well as their physical requirements for growth such as temperature, oxygen, pH, water activity, and other conditions.
The document discusses various aspects of metabolism, including the two main types of metabolic processes (catabolism and anabolism), how organisms obtain energy through the breakdown of nutrients like carbohydrates and proteins, and factors that can increase metabolic rate such as caffeine, fiber, and organic foods. It also covers topics like microbial metabolism, nitrogen fixation by microbes, aerobic and anaerobic respiration, and the role of metabolism in sustaining life.
microbial nutrition and nutritional requirements dr. ihsan alsaimarydr.Ihsan alsaimary
prof . dr. ihsan edan alsaimary
department of microbiology - college of medicine - university of basrah - basrah -IRAQ
ihsanalsaimary@gmail.com
00964 7801410838
The document discusses the nutritional requirements and culture media for bacterial growth. It outlines the major elements, trace elements, and growth factors that bacteria need to grow, such as carbon, nitrogen, vitamins, and minerals. It also categorizes bacteria based on their nutritional types as either autotrophic or heterotrophic. Autotrophs can synthesize their own food while heterotrophs rely on external organic sources. The document also defines culture as microorganisms cultivated in the lab and medium as the combination of ingredients that support microbial growth by providing essential nutrients. Common growth media include nutrient broths and agar plates.
This document summarizes different types of bacterial nutrition. It discusses that bacteria require suitable nutrients for growth and reproduction, including a carbon source, nitrogen source, and trace elements. Bacteria are classified as either autotrophic or heterotrophic based on their nutrition. Autotrophic bacteria can synthesize organic compounds from inorganic sources, either through photosynthesis or chemosynthesis. Heterotrophic bacteria rely on organic carbon sources. Saprophytic bacteria break down dead organic material through fermentation and putrefaction. Parasitic bacteria obtain nutrients from living hosts. Respiration allows bacteria to obtain energy by oxidizing food materials.
This document discusses the growth and nutrition requirements of bacteria. It explains that bacteria require major elements like carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur to support growth. Trace elements and vitamins are also needed. The document outlines different types of bacteria based on their carbon and energy sources, including photoautotrophs, chemoautotrophs, photoheterotrophs, and chemoheterotrophs. It also discusses various types of culture media used to grow bacteria, such as simple, complex, synthetic, enriched, selective, indicator, differential, sugar, transport, and anaerobic media.
Methanogens are archaea that obtain energy through the anaerobic synthesis of methane from carbon dioxide, hydrogen, or organic compounds like acetate. They are strict anaerobes that thrive in environments rich in organic matter like the rumen, wetlands, and sediments. Chemolithotrophs are prokaryotes that obtain energy from the oxidation of reduced inorganic compounds like hydrogen, ammonia, and sulfide while fixing inorganic carbon. They generate ATP through oxidative phosphorylation using electrons from inorganic molecules in their electron transport chain rather than organic nutrients. Methanogens and chemolithotrophs play important ecological roles in biogeochemical cycling through the removal and fixation of compounds.
This document discusses nutrition in fungi. It covers the essential elements fungi require, including carbon, hydrogen, oxygen, nitrogen and various minerals. Fungi obtain these elements from organic and inorganic sources in their environment. The document explores the different modes of nutrition fungi use, including saprophytism and parasitism. It also examines the mechanisms fungi employ to absorb nutrients, such as secreting enzymes and forming specialized feeding structures called haustoria. Finally, the document discusses mutualistic relationships fungi engage in for nutrition, including lichens and mycorrhizal associations with plant roots.
Sources of the growth of micro organimsAnuKiruthika
The document summarizes the main sources and requirements for the growth of microorganisms. It discusses that microorganisms require nutrients like carbon, nitrogen, phosphorus, and trace elements. It also requires an energy source, typically carbon compounds, and environmental factors like temperature, pH, oxygen levels to be within a permissible range. The major nutritional elements needed are carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus, potassium, magnesium, iron, calcium, and manganese. Trace elements like zinc, cobalt, copper and molybdenum are also required but in very small amounts. The carbon and energy sources can be organic compounds that heterotrophs can break down or carbon dioxide for autotrophs.
Sources of the growth of micro organimsAnuKiruthika
The document summarizes the main sources and requirements for the growth of microorganisms. It discusses that microorganisms require nutrients like carbon, nitrogen, phosphorus, and trace elements. It also requires an energy source, typically carbon compounds, and environmental factors like temperature, pH, oxygen levels to be within a permissible range. The major nutrients required are carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus, potassium, magnesium, iron, calcium, and manganese. Trace elements like zinc, cobalt, copper and molybdenum are also needed in small amounts. Carbon is required either from organic compounds through heterotrophs or from carbon dioxide through autotrophs.
This document discusses bacteria growth and metabolism. It covers:
- Bacterial growth occurs through cell division and increases in population size and cell components. Growth happens in lag, log, stationary, and death phases.
- Bacteria require specific temperatures, pH levels, oxygen levels, carbon sources, inorganic ions, organic nutrients, and enzymes to metabolize and grow.
- Bacterial metabolism includes anabolic and catabolic reactions. Energy is obtained through fermentation, anaerobic respiration using electron acceptors, or aerobic respiration using oxygen. Enzymes catalyze specific metabolic reactions.
classification of microorganism on the basis of their mode of nutrition.pptxkreety1
This document discusses the classification of microorganisms based on their mode of nutrition. It describes three main criteria for classification: carbon source, energy source, and electron source. Based on carbon source, microorganisms are either autotrophs, which produce their own organic carbon from inorganic carbon dioxide, or heterotrophs, which rely on other organisms for organic carbon. Based on energy source, they are either phototrophs, which use light as an energy source, or chemotrophs, which use chemical compounds. Based on electron source, they are either lithotrophs, which use inorganic electron donors, or organotrophs, which use organic electron donors. The document also lists the five main nutritional types
Biochemistry serves as a fundamental discipline in the life sciences, exploring the chemical processes and biomolecules that underlie biological systems. It bridges the gap between biology and chemistry, investigating the molecular basis of life. Biochemistry delves into the study of macromolecules such as proteins, nucleic acids, carbohydrates, and lipids, as well as the intricate interactions and reactions that occur within cells. It encompasses vital topics such as metabolism, energy production, cellular respiration, and photosynthesis. The field examines DNA, RNA, and gene expression to unravel the genetic information and molecular mechanisms that govern living organisms. Additionally, biochemistry explores the molecular structures, chemical bonds, and synthesis of biomolecules, as well as the diverse biochemical pathways and cellular functions they regulate. It also encompasses aspects of molecular genetics, protein synthesis, enzyme kinetics, biochemical regulation, and cell signaling. Biochemistry finds applications in various areas including biotechnology, pharmaceuticals, genetic engineering, and the study of metabolic diseases. It plays a pivotal role in advancing our understanding of life at the molecular level and holds significant implications for numerous scientific and medical advancements.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Assessment and Planning in Educational technology.pptxKavitha Krishnan
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
This document discusses the physiology and metabolism of bacteria. It explains that bacteria metabolize organic and inorganic substrates to generate energy through catabolic pathways, while using this energy for anabolic pathways to synthesize cellular components. The four main components of bacterial cells are water, organic matter like proteins and carbohydrates, and inorganic minerals. Bacteria are classified based on their nutritional requirements, oxygen usage, and optimal temperature for growth. Enzymes play a key role in bacterial metabolism by catalyzing biochemical reactions. Bacterial growth occurs through binary fission and follows a characteristic growth curve with lag, logarithmic, stationary, and death phases.
The document discusses nutrition in bacteria. It explains that bacteria require carbon, hydrogen, oxygen, nitrogen, metals, and water for their biochemical processes. Bacteria are classified as autotrophs or heterotrophs based on their ability to produce or require organic carbon compounds. Autotrophs can produce organic compounds from inorganic sources like carbon dioxide, while heterotrophs require organic carbon sources. The document further describes different types of autotrophs and heterotrophs based on their energy and carbon sources. These include photoautotrophs, chemoautotrophs, photoheterotrophs, and chemoheterotrophs. Parasitic, saprophytic, and symbiotic bacteria are also discussed
Microorganisms require nutrients for growth and metabolism. There are two categories of essential nutrients: macro-nutrients which are needed in large amounts to maintain cell structure and metabolism, and micro-nutrients which are needed in trace amounts to help enzyme function and maintain protein structure. Microorganisms obtain carbon, nitrogen, and other macro-nutrients from both inorganic and organic sources, while micro-nutrients like metals serve as catalysts in enzymes. Microorganisms are also classified based on their energy and electron sources as phototrophs or chemotrophs, and lithotrophs or organotrophs.
This presentation involves with the methodology and principles of the microbial photosynthesis such as autotrophs and chemotrophs (natural and chemical methods)
This document discusses bacterial nutrition and modes of nutrition in bacteria. It explains that bacteria require carbon, nitrogen, phosphorus, iron and other molecules as nutrients. Bacteria can be classified based on their energy source as phototrophs which use light, or chemotrophs which use chemical compounds. They can also be classified based on their electron source as lithotrophs which use inorganic compounds or organotrophs which use organic compounds. The document then discusses autotrophic and heterotrophic bacteria and their carbon sources, as well as their physical requirements for growth such as temperature, oxygen, pH, water activity, and other conditions.
The document discusses various aspects of metabolism, including the two main types of metabolic processes (catabolism and anabolism), how organisms obtain energy through the breakdown of nutrients like carbohydrates and proteins, and factors that can increase metabolic rate such as caffeine, fiber, and organic foods. It also covers topics like microbial metabolism, nitrogen fixation by microbes, aerobic and anaerobic respiration, and the role of metabolism in sustaining life.
microbial nutrition and nutritional requirements dr. ihsan alsaimarydr.Ihsan alsaimary
prof . dr. ihsan edan alsaimary
department of microbiology - college of medicine - university of basrah - basrah -IRAQ
ihsanalsaimary@gmail.com
00964 7801410838
The document discusses the nutritional requirements and culture media for bacterial growth. It outlines the major elements, trace elements, and growth factors that bacteria need to grow, such as carbon, nitrogen, vitamins, and minerals. It also categorizes bacteria based on their nutritional types as either autotrophic or heterotrophic. Autotrophs can synthesize their own food while heterotrophs rely on external organic sources. The document also defines culture as microorganisms cultivated in the lab and medium as the combination of ingredients that support microbial growth by providing essential nutrients. Common growth media include nutrient broths and agar plates.
This document summarizes different types of bacterial nutrition. It discusses that bacteria require suitable nutrients for growth and reproduction, including a carbon source, nitrogen source, and trace elements. Bacteria are classified as either autotrophic or heterotrophic based on their nutrition. Autotrophic bacteria can synthesize organic compounds from inorganic sources, either through photosynthesis or chemosynthesis. Heterotrophic bacteria rely on organic carbon sources. Saprophytic bacteria break down dead organic material through fermentation and putrefaction. Parasitic bacteria obtain nutrients from living hosts. Respiration allows bacteria to obtain energy by oxidizing food materials.
This document discusses the growth and nutrition requirements of bacteria. It explains that bacteria require major elements like carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur to support growth. Trace elements and vitamins are also needed. The document outlines different types of bacteria based on their carbon and energy sources, including photoautotrophs, chemoautotrophs, photoheterotrophs, and chemoheterotrophs. It also discusses various types of culture media used to grow bacteria, such as simple, complex, synthetic, enriched, selective, indicator, differential, sugar, transport, and anaerobic media.
Methanogens are archaea that obtain energy through the anaerobic synthesis of methane from carbon dioxide, hydrogen, or organic compounds like acetate. They are strict anaerobes that thrive in environments rich in organic matter like the rumen, wetlands, and sediments. Chemolithotrophs are prokaryotes that obtain energy from the oxidation of reduced inorganic compounds like hydrogen, ammonia, and sulfide while fixing inorganic carbon. They generate ATP through oxidative phosphorylation using electrons from inorganic molecules in their electron transport chain rather than organic nutrients. Methanogens and chemolithotrophs play important ecological roles in biogeochemical cycling through the removal and fixation of compounds.
This document discusses nutrition in fungi. It covers the essential elements fungi require, including carbon, hydrogen, oxygen, nitrogen and various minerals. Fungi obtain these elements from organic and inorganic sources in their environment. The document explores the different modes of nutrition fungi use, including saprophytism and parasitism. It also examines the mechanisms fungi employ to absorb nutrients, such as secreting enzymes and forming specialized feeding structures called haustoria. Finally, the document discusses mutualistic relationships fungi engage in for nutrition, including lichens and mycorrhizal associations with plant roots.
Sources of the growth of micro organimsAnuKiruthika
The document summarizes the main sources and requirements for the growth of microorganisms. It discusses that microorganisms require nutrients like carbon, nitrogen, phosphorus, and trace elements. It also requires an energy source, typically carbon compounds, and environmental factors like temperature, pH, oxygen levels to be within a permissible range. The major nutritional elements needed are carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus, potassium, magnesium, iron, calcium, and manganese. Trace elements like zinc, cobalt, copper and molybdenum are also required but in very small amounts. The carbon and energy sources can be organic compounds that heterotrophs can break down or carbon dioxide for autotrophs.
Sources of the growth of micro organimsAnuKiruthika
The document summarizes the main sources and requirements for the growth of microorganisms. It discusses that microorganisms require nutrients like carbon, nitrogen, phosphorus, and trace elements. It also requires an energy source, typically carbon compounds, and environmental factors like temperature, pH, oxygen levels to be within a permissible range. The major nutrients required are carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus, potassium, magnesium, iron, calcium, and manganese. Trace elements like zinc, cobalt, copper and molybdenum are also needed in small amounts. Carbon is required either from organic compounds through heterotrophs or from carbon dioxide through autotrophs.
This document discusses bacteria growth and metabolism. It covers:
- Bacterial growth occurs through cell division and increases in population size and cell components. Growth happens in lag, log, stationary, and death phases.
- Bacteria require specific temperatures, pH levels, oxygen levels, carbon sources, inorganic ions, organic nutrients, and enzymes to metabolize and grow.
- Bacterial metabolism includes anabolic and catabolic reactions. Energy is obtained through fermentation, anaerobic respiration using electron acceptors, or aerobic respiration using oxygen. Enzymes catalyze specific metabolic reactions.
classification of microorganism on the basis of their mode of nutrition.pptxkreety1
This document discusses the classification of microorganisms based on their mode of nutrition. It describes three main criteria for classification: carbon source, energy source, and electron source. Based on carbon source, microorganisms are either autotrophs, which produce their own organic carbon from inorganic carbon dioxide, or heterotrophs, which rely on other organisms for organic carbon. Based on energy source, they are either phototrophs, which use light as an energy source, or chemotrophs, which use chemical compounds. Based on electron source, they are either lithotrophs, which use inorganic electron donors, or organotrophs, which use organic electron donors. The document also lists the five main nutritional types
Biochemistry serves as a fundamental discipline in the life sciences, exploring the chemical processes and biomolecules that underlie biological systems. It bridges the gap between biology and chemistry, investigating the molecular basis of life. Biochemistry delves into the study of macromolecules such as proteins, nucleic acids, carbohydrates, and lipids, as well as the intricate interactions and reactions that occur within cells. It encompasses vital topics such as metabolism, energy production, cellular respiration, and photosynthesis. The field examines DNA, RNA, and gene expression to unravel the genetic information and molecular mechanisms that govern living organisms. Additionally, biochemistry explores the molecular structures, chemical bonds, and synthesis of biomolecules, as well as the diverse biochemical pathways and cellular functions they regulate. It also encompasses aspects of molecular genetics, protein synthesis, enzyme kinetics, biochemical regulation, and cell signaling. Biochemistry finds applications in various areas including biotechnology, pharmaceuticals, genetic engineering, and the study of metabolic diseases. It plays a pivotal role in advancing our understanding of life at the molecular level and holds significant implications for numerous scientific and medical advancements.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Assessment and Planning in Educational technology.pptxKavitha Krishnan
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
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আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
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This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
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A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
5. •This is the minimum nutritional requirements
for growth and multiplication of bacteria .
•This includes water which varies from 75 to 90
percent of the total weight , a source of carbon,
a source of nitrogen and some inorganic salts.
6. The microbial cell is made up of several elements
such as carbon, oxygen, hydrogen, nitrogen,
sulfur, phosphorus, potassium, calcium,
magnesium, and iron.
These are also known as Macro elements or
Macronutrients because these elements are
required in high amounts by the microbes
.
7. MACRONUTRIENTS
Nitrogen is needed for the synthesis of such molecules as amino
acids, DNA, RNA and ATP . Depending on the organism, nitrogen,
nitrates, ammonia, or organic nitrogen compounds may be used as a
nitrogen source.
Sulfur is needed to synthesizes sulfur-containing amino acids and
certain vitamins. Depending on the organism, sulfates, hydrogen
sulfide, or sulfur-containing amino acids may be used as a sulfur
source.
Phosphorus is needed to synthesize phospholipids , DNA, RNA,
and ATP . Phosphate ions are the primary source of phosphorus.
8. Potassium, magnesium, and calcium These are required for
certain enzymes to function as well as additional functions.
Iron is required by microbes for the function of their
cytochromes and enzymes. However, little free iron is available
in environments, due to its insolubility.
Many bacteria have evolved siderophores, organic molecules
that chelate or bind ferric iron with high affinity
9.
10. Bacteria show a great deal of variation in their
requirements for gaseous oxygen. Most can be placed in one
of the following groups:
•Obligate aerobes are organisms that grow only in the
presence of oxygen. They obtain their energy through
aerobic respiration .
• Microaerophils are organisms that require a low
concentration of oxygen (2% to 10%) for growth. They
obtain their energy through aerobic respiration .
OXYGEN
11. • Obligate anaerobes are organisms that grow only in the absence
of oxygen. They obtain their energy through anaerobic respiration
or fermentation .
• Aerotolerant anaerobes, cannot use oxygen to transform energy
but can grow in its presence. They obtain energy only by
fermentation also called obligate fermenters.
• Facultative anaerobes grow with or without oxygen. They obtain
their energy through aerobic respiration if oxygen is present, but
use fermentation or anaerobic respiration if it is absent. Most
bacteria are facultative anaerobes.
12. Trace elements are elements required in very
minute amounts, and like potassium,
magnesium, calcium, and iron, they usually
function as cofactors in enzyme reactions.
They include sodium, zinc, copper,
molybdenum, manganese, and cobalt ions.
TRACE ELEMENTS OR MICRONUTRIENTS
13. •They are involved in biological functions in several
ways.
•For example, zinc (Zn2+) is present at the active site
of several enzymes.
•Manganese (Mn2+) involved in catalysis of the
transfer of phosphate group.
•Mo (Mo2+) is essential for nitrogen fixation.
14. ELECTRONS
They are required, they have three main functions,
which are
• The movement of electrons through electron
transport chains.
• During other oxidation-reduction reactions they
provide energy for use in cellular work.
• Electrons also are needed to reduce molecules
during biosynthesis.
15. GROWTH FACTOR
•Some organic compounds are important for microbial
growth but cannot be synthesized by few microbes,
they are known as growth factors.
•Amino acids (building blocks of protein),
•Purines and Pyrimidines (building blocks of nucleic
acid)
•Vitamins (enzyme cofactors)
16. NUTRITIONAL REQUIREMENTS
Organisms having complex nutritional requirements and
they can be grouped according to their
•Energy Source
•Carbon Source
Energy source
1. Phototrophs use radiant energy (light) as their primary
energy source.
2. Chemotrophs use the oxidation and reduction of
chemical compounds as their primary energy source.
17. Carbon source
Autotrophs : require only carbon dioxide as a
carbon source. An autotroph can synthesize organic
molecules from inorganic nutrients.
Heterotrophs : require organic forms of carbon. A
Heterotroph cannot synthesize organic molecules
from inorganic nutrients.
18. Combining their nutritional patterns, all organisms in
nature can be placed into one of four separate groups:
based on their Carbon and Energy Source.
•Photoautotrophs,
• Photoheterotrophs
• Chemoautotrophs
•Chemoheterotrophs
Based on their Energy, Carbon and Electron source they
can be grouped into the following
20. UPTAKE OF NUTRIENTS
In order to support its’ activities, a cell must bring in
nutrients from the external environment across the cell
membrane. In microbes several different transport
mechanisms exist.
Passive Diffusion or Simple diffusion
•Allows for the passage across the cell membrane of simple
molecules and gases, such as CO2, O2, and H2O. In this case,
there is higher concentration of the substance outside of
the cell than there is inside the cell.
21. Facilitated Diffusion
• Here the concentration of the substance is higher outside the cell,
but differs with the use of carrier proteins (sometimes called
permeases). These proteins are embedded within the cell
membrane and provide a channel or pore across the membrane
barrier, allowing for the passage of larger molecules.
Active Transport
• Many types of nutrient uptake require that a cell be able to
transport substances against a concentration gradient . A
metabolic energy is utilized for the transport of the substance
through carrier proteins embedded in the membrane. This is
known as active transport.
22.
23. •Primary Active
Transport
This involves the use of
chemical energy, such
as ATP, to drive the
transport. One example
is the ABC system,
which utilizes ATP-
Binding Cassette
transporters.
24. Secondary active transport
utilizes energy from a proton motive force (PMF). A PMF is an ion
gradient that develops when the cell transports electrons during
energy-conserving processes. Positively charged protons accumulate
along the outside of the negatively charged cell.
There are three different types of transport events for simple transport:
uniport, symport, and antiport
Uniporters transport a single substance across the membrane, either
in or out.
Symporters transport two substances across the membrane at the
same time, typically a proton paired with another molecule.
Antiporters transport two substances across the membrane as well,
but in opposite directions. As one substance enters the cell, the other
substance is transported out.
26. Group Translocation
•This is a distinct type of active transport, using energy
from an energy-rich organic compound that is not ATP.
•Group translocation also differs from both simple transport
and ABC transporters in that the substance being
transported is chemically modified in the process
27.
28. • Microbial Nutrition is the minimum nutritional requirements for growth and
multiplication of bacteria
• Bacteria show a great deal of variation in their requirements for gaseous oxygen. Most
can be placed in one of the following groups: obligate aerobes, microaerophils, obligate
anaerobes, aerotolerant anaerobes, or facultative anaerobes.
• Bacteria can be grouped according to their energy source as phototrophs or chemotrophs.
• Bacteria can be grouped according to their carbon source as autotrophs or heterotrophs.
• Combining their nutritional patterns, all organisms in nature can be placed into one of
four separate groups: photoautotrophs, photoheterotrophs, chemoautotrophs, and
chemoheterotrophs.
• Bacteria also need a nitrogen source, various minerals, and water for growth.
• Organisms having complex nutritional requirements and needing many growth factors
are said to be fastidious
SUMMARY
29. STUDY QUESTIONS
• What are the different terms associated with microbial
nutritional types?
• How can these terms be combined to define the nutritional types
of microbes in terms of their sources of carbon, electrons, and
energy?
• What are macroelements and why are they important to a cell?
• What are growth factors and what is their significance to a cell?
• Why is iron uptake important for a cell? What is used to
accomplish this?
30. What is the importance of nutrient uptake for a cell?
What are the common features of nutrient uptake by bacteria?
What is transported into a bacteria cell by passive diffusion and how
does this affect a bacterial cell?
Explain diffusion (passive and facilitated) and active transport.
What are the 3 types of active transport?
Be able to diagram each processes.
What is required for each of these processes?
How are they similar, how are they different?