This document contains 10 multiple choice questions about photosynthesis. It asks about the molecules used in photosynthesis like water, oxygen and carbon dioxide. It also asks about the organelles and processes involved in photosynthesis, including that it occurs in the chloroplast, uses light energy to produce oxygen and ATP through light reactions, and that land plants produce most of the earth's oxygen through photosynthesis. The last question is a bonus question asking what type of organism uses photosynthesis.
Download Important general science questions and answers for ssc exam.pdfSSC Alert
Important science quiz questions and answers pdf for upcoming ssc cgl, ssc chsl, fci exam and all other competitive examination. This file contains chemistry quiz and biology quiz. For more question go to - www.sscalert.com .
Download Important general science questions and answers for ssc exam.pdfSSC Alert
Important science quiz questions and answers pdf for upcoming ssc cgl, ssc chsl, fci exam and all other competitive examination. This file contains chemistry quiz and biology quiz. For more question go to - www.sscalert.com .
1BIOLOGY 101 Fall 2016FINAL EXAMINATIONPlease copy and.docxfelicidaddinwoodie
1
BIOLOGY 101 Fall 2016
FINAL EXAMINATION
Please copy and paste the final examination into a Word file. Complete it in this form (do not make any structural changes!) and submit it as an attachment into your Assignment Folder.Do not forget to put your name on top of the exam!
The absolute deadline for submission is Sunday, October 16, NOON ET.
I cannot accept any later submissions.
YOUR NAME:
_______________________________________________________________
Total possible points: 100
I. Multiple choice questions. Please bold or underline the correct answer (1point each=50 points)
1. Several features, or properties, of living things may also be found in non-living things, such as fire. Of the following, which is the least likely to be found in non-living things?
A. Consumption of energy-containing molecules
B. Growth
C. Reproduction
D. Homeostasis
E. Response to external stimuli
2. Suppose you conduct an experiment which simulates glacial recession over time. What is the dependent variable in this experiment?
A. Glacial mass
B. Sunlight
C. The season
D. Time
3. If life on another planet were fundamentally like life on Earth, the macromolecules of living things would be based on which element?
A. Carbon
B. Hydrogen
C. Nitrogen
D. Oxygen
E. Phosphorus
4. The effectiveness of a medication containing growth hormones is tested on a group of young male rabbits 3 weeks of age. The best control group would be:
A. Any group of rabbits
B. A group of male rabbits, three weeks old, not given the medication
C. A group of female rabbits, three weeks old, not given the medication
D. A mixed group of male/female rabbits, three weeks old, not given the medication
E. No control is required; just measure whether the rabbits grew
5. Temperature is a measure of
A. The potential energy in a substance
B. How fast the molecule in a substance are moving
C. The energy lost from a substance to its surroundings.
D. How much heat is being absorbed by a substance
E. All of the above
6. Which of the following refers to a substance that has ‘lost’ a carbon dioxide molecule?
A. Denatured
B. Phosphorilated
C. Decarboxylated
D. Carbonated
E. Oxidated
7. Which of the following reactions or pathways is catabolic?
A. Converting glucose to carbon dioxide and water (cellular respiration)
B. Making starch from many glucose monomers
C. Photosynthesis, which builds glucose from carbon dioxide using energy from light
D. Making ATP from ADP and phosphate
8. One human disease is caused by a change in the DNA from GAA to GUA. This change is an example of:
A. Crossing-over
B. A meiosis error
C. A mitosis error
D. A mutation
9. During which part of the cell cycle is DNA polymerase most active?
A. Cytokinesis
B. G1 phase
C. G2 phase
D. S phase
E. M phase
10. Which of the following correctly describes a buffer?
A. A buffer converts an alkaline solution to neutral
B. A buffer converts an acid solution to neutral.
C. A buffer converts alkaline solutions to acid solutions.
D. A b ...
Which of these is the smallest structureA. Amino acidB. Prote.docxalanfhall8953
Which of these is the smallest structure?
A. Amino acid
B. Protein
C. Polypeptide
D. Dipeptide
2. Any energy transformation involves the loss of some energy as
A. motion.
B. heat.
C. electric charge.
D. light.
3. Which one of the following molecules is a by-product of cellular respiration?
A. Glucose
B. Oxygen
C. Water
D. Pyruvate
4. The following atoms are all variations of the element carbon: 12C, 13C, and 14C due to differing numbers of neutrons. What are these variations called?
A. Isotopes
B. Isomers
C. Molecules
D. Polymers
5. When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the _______ variable.
A. environmental
B. observational
C. experimental
D. control
6. Which of the following is a true difference between prokaryotic and eukaryotic cells?
A. Eukaryotic cells are more ancient.
B. Eukaryotic cells are less complex.
C. Eukaryotic cells are smaller.
D. Eukaryotic cells have true nuclei.
7. In a eukaryotic cell, protein synthesis occurs in the
A. nuclear envelope.
B. ribosomes.
C. smooth endoplasmic reticulum.
D. chromosomes.
8. Nucleic acids are composed of monomers called
A. base pairs.
B. amino acids.
C. nucleotides.
D. ribose.
9. Which one of the following is a trans fatty acid found in most snack foods?
A. Carboxyl acid
B. Elaidic acid
C. Oleic acid
D. Stearic acid
10. The structure that surrounds the cytoplasm in a bacterial cell is the
A. cell wall.
B. nucleoid.
C. ribsosome.
D. plasma membrane.
11. Which of these statements most accurately describes how carbon dioxide enters a leaf?
A. CO
2 is pulled in by leaf veins. B. CO2 defuses by way of the stomata.
C. CO
2 enters a leaf through osmosis. D. CO2 is carried by water in leaf veins.
12. The Calvin cycle of photosynthesis begins when
A. the reduction of carbon dioxide occurs.
B. electrons leave a photosystem.
C. light becomes available.
D. carbon dioxide is attached to RuBP.
End of exam
13. Which of the following is true about bases?
A. They release hydroxide ions in solution.
B. They have a sharp or sour taste.
C. They help to build up cells.
D. They tend to decrease the pH of a solution.
14. The two major sets of reactions involved in photosynthesis are
A. light reactions and the electron transport chain.
B. glycolysis and the citric acid cycle.
C. Calvin cycle reactions and citric acid cycles.
D. light reactions and Calvin cycle reactions.
15. Which one of the following is an example of a monosaccharide?
A. Sucrose
B. Starch
C. Cellulose
D. Glucose
Which of these is the smallest structure?
A. Amino acid
B. Protein
C. Polypeptide
D. Dipeptide
2. Any energy transformation involves the loss of some energy as
A. motion.
B. heat.
C. electric charge.
D. light.
3. Which one of the following molecules is a by-product of cellular respiration?
A. Glucose
B. Oxygen
C. Water
D. Pyruvate
4. The following atoms are all variations of the element carbon: 12C, 13C, and 14C due to differing numbers of neutrons..
CHAPTER 1 QUESTIONS (32 points total)1. List six environmental .docxsleeperharwell
CHAPTER 1 QUESTIONS: (32 points total)
1. List six environmental dilemmas that we now face and summarize how each concerns us (12 points)
2. What is extreme poverty, and why should we care? (5 points)
3. Why should we be worried about economic growth in China? (5 points)
4. How much would it cost to eliminate acute poverty and ensure basic human needs for everyone? (5 points)
5. Why are indigenous people important as guardians of nature? (5 points)
CHAPTER 2 QUESTIONS: (36 points total)
1. Why are widely accepted, well-defended scientific explanations called “theories”? (5 points)
2. Draw a diagram showing the steps of the scientific method, and explain why each is important. (12 points)
3. What is positive feedback loop? What is a negative feedback loop? Give an example of each. (8 points)
4. Why do we say that proof is elusive in science? (5 points)
5. What is a manipulative experiment? A natural experiment? A controlled study? (6 points)
Matter, Energy, and Life
ENSC 1410
Chapter 3 Quiz
NAME: ______ _____________ Section: _____ Date: _________________
I. MULTIPLE CHOICE (4 points each)
1. How are matter and mass related?
A. Mass is a component of matter
B. Neither matter nor mass take up space
C. Matter is a component of mass
D. Both matter and mass take up space
E. Mass takes up space while matter does not take up space
2. The law of conservation of matter tells us that matter
A. Can never be reused
B. Needs to be conserved or it will not be available for future generations
C. Can be destroyed
D. Can be conserved by some adaptive strategies
E. Is used repeatedly
3. What implication(s) does the law of conservation of matter have for humans?
A. We cannot create energy because it is neither created nor destroyed
B. As matter is recycled it loses some of its integrity so we need to be careful when we dispose of goods
C. Natural resources are unlimited because they are used and reused by living organisms
D. Disposable goods are not going "away" when we throw them out
E. All of these are implications of the law of conservation of matter
4. Which of the following statements changes the following false statement into a true statement? "Most, but not all, living organisms are made up of organic compounds."
A. All living organisms are made up of organic compounds
B. All living organisms are made up of only inorganic compounds
C. Most, but not all, living organisms are made up of inorganic compounds
D. Most, but not all, living organisms are made up of organic elements
E. Most, but not all, living organisms are made up of inorganic elements
5. A fat or oil is to a _______ as an enzyme is to a _______.
A. Nucleic acid; lipid
B. Protein; nucleic acid
C. Nucleic acid; carbohydrate
D. Carbohydrate; protein
E. Lipid; protein
6. Nucleic acid is to _______ as lipid is to _______.
A. Cellular membrane structure; energy storage
B. Cellulose structure; genetic storage
C. Energy storage; cellulose structure
D. Genetic storage; cellular membran.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
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