Cellular Energy Test Prep (quiz grade)
Multiple Choice - Choose the best and most complete answer.
1. Which type of energy transformation occurs in photosynthesis?
A. heat to electrical
B. light to chemical
C. mechanical to electrical
D. chemical to mechanical
2. The potential energy of organic molecules is most readily available to cells in the form of
A. ribonucleic acid.
B. adenosine triphosphate.
C. water.
D. minerals.
3. The sum of all of the chemical reactions occurring in a cell is called
A. photosynthesis.
B. diffusion.
C. oxidative respiration.
D. metabolism.
4. The sun is considered the ultimate source of energy for life on Earth because
A. photosynthetic organisms provide energy for other organisms on Earth.
B. all organisms carry out cellular respiration.
C. the sun heats the Earth’s atmosphere.
D. all organisms carry out photosynthesis.
5. Which could be used to monitor the rate of photosynthesis in a plant?
A. oxygen production
B. water production
C. hydrogen production
D. carbon dioxide production
6. Oxidative respiration takes place in the
A. chloroplasts.
B. thylakoid.
C. mitochondria.
D. cytoplasm.
7. Glycolysis is considered to be less efficient than oxidative respiration because
A. less lactic acid is formed during glycolysis than oxidative respiration.
B. the production of ATP is less in glycolysis than in oxidative respiration .
C. glycolysis requires more oxygen than oxidative respiration.
D. less energy is required during glycolysis than oxidative respiration.
8. Fermentation of glucose by yeast produces
A. ethyl alcohol and carbon dioxide.
B. lactic acid and carbon dioxide.
C. lactic acid and oxygen.
D. ethyl alcohol and oxygen.
9. Which process is best illustrated by the diagram?
A. cellular respiration
B. digestion
C. photosynthesis
D. fermentation
10. Aerobic cellular respiration requires an adequate supply of
A. carbon dioxide.
B. oxygen.
C. ethyl alcohol.
D. starch.
11. One molecule of glucose is broken down into two molecules of pyruvate as a result of the
A. light reactions of photosynthesis.
B. process of glycolysis.
C. digestion of a protein.
D. diffusion of water across a membrane.
12. Which of the following does not occur during one of the stages of photosynthesis?
A. Light energy is captured.
B. Pyruvate is produced.
C. ATP and NADPH are produced.
D. Glucose is made using carbon dioxide.
13. Water is produced at the end of
A. the Krebs cycle.
B. lactic acid fermentation.
C. the electron transport chain.
D. photosynthesis.
14. What gas is given off during cellular respiration?
A. oxygen
B. methane
C. hydrogen
D. carbon dioxide
15. A green plant is kept in a brightly lighted area for 48 hours. What will most likely occur if the
light intensity is then reduced slightly during the next 48 hours?
A. The rate at which nitrogen is used by the plant will increase.
B. Photosynthesis will stop completely.
C. The rate at which oxygen is released from the plant will decrease.
D. Glucose production inside each plant cell will increase.
16. The diagram below represents some events that take place in plant cells.
In which organelle would the above events most likely occur?
A. lysosome
B. mitochondrion
C. ribosome
D. chloroplast
17. The first stage of cellular respiration is called
A. glycolysis.
B. the Krebs cycle.
C. the Calvin cycle.
D. oxidative respiration.
18. All of the activities occurring within cells
A. result in the production of ATP.
B. result from random mixing of enzymes.
C. take place causing a bubbling and fizzing in them.
D. are driven by chemical reactions.
19. Tiny packets of light energy are called
A. enzymes.
B. catalysts.
C. photons.
D. substrates.
20. The place on an enzyme where it binds with its substrate is called the
A. pigment.
B. active site.
C. catalyst.
D. restriction location.
21. The graph below represents the absorption spectrum of chlorophyll.
The graph indicates that the energy used in photosynthesis is most likely obtained from which
regions of the spectrum?
A. yellow and orange red
B. violet blue and green
C. orange red and violet blue
D. green and yellow
22. The following diagram represents the steps in an enzyme catalyzed reaction.
What is represented by letter A?
A. enzyme
B. product
C. substrate
Base your answer for question 30 on the graph below.
22. Which section of the graph includes the point at which the enzyme’s shape is altered so that the
enzyme no longer functions?
A. I
B. II
C. III
D. IV
23. What is the net gain in ATP following completion of aerobic cellular respiration of one molecule
of glucose in a brain cell?
A. 36
B. 30
C. 4
D. 2
24. Which of the following is an example of a green pigment?
A. sucrase
B. pyruvate
C. chlorophyll
D. NADPH
25. Two reactants that are used in the process of photosynthesis are
A. water and carbon dioxide.
B. glucose and water.
C. carbon dioxide and oxygen.
D. oxygen and water.
26. C6H12O6 + 6 O2 cytoplasm 6 CO2 + 6 H2O + 36 ATP is the equation for
mitochondria
A. photosynthesis.
B. cellular respiration.
C. fermentation.
D. ATP breakdown.
27. If the test tube below were allowed to stand at room temperature for several hours, what process
would be occurring in the test tube?
A. oxidative respiration
B. fermentation
C. photosynthesis
D. evolution
28. C6H12O6 lactic acid + energy is an equation for
A. fermentation.
B. photosynthesis.
C. cellular respiration.
D. ATP breakdown.
Use the following diagram to answer questions 43 and 44.
29. The gas released in this investigation is
A. carbon dioxide.
B. hydrogen.
C. nitrogen.
D. oxygen.
30. Which of the following diagrams represents the correct cycling of gases?
A. C.
B. D.
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