Cellular Energetics Test
_____1. Most solar energy passes through the earth’s atmosphere and reaches its surface.
a. true
b. false
_____2. Photosynthesis utilizes
a. the entire electromagnetic spectrum
b. radio and microwaves
c. only visible light
d. gamma rays
_____3. Which of the following is only minimally absorbed by chlorophylls a and b?
a. violet light
b. green light
c. blue light
d. red light
_____4. The importance of photosynthesis is that photosynthetic organisms produce____ for the
atmosphere.
a. CO2
b. H2O c. organic food
d. O2
_____5. Which of the following do not perform photosynthesis?
a. plants
b. animals
c. algae
_____6. The term “reduction” means
a. losing electrons
b. gaining electrons
_____7. The rate of photosynthesis can be measured by measuring the production of_______.
a. CO2
b. H2O
c. O2
_____8. The pigments that are primarily responsible for the metabolic activity associated with
photosynthesis are the____.
a. chlorophylls
b. carotenoids
_____9. The plant pigments, carotenoids, absorb light in the violet-blue-green range and therefore
appear shades of yellow and orange.
a. true
b. false
_____10. The reactants of photosynthesis include all of the following except____.
a. carbohydrates
b. H2O
c. CO2
_____11. The oxygen given off by plants comes from
a. CO2
b. CH2O
c. H2O
d. the atmosphere
_____12. In a eukaryote cell, photosynthesis occurs in the ____.
a. chloroplast
b. mitochondria
c. nucleus
d. Golgi complex
_____13. The photosynthetic pigments are found in the ___.
a. nucleus
b. Golgi complex
c. thylakoids
_____14. CO2 reduction occurs during ___.
a. cellular respiration
b. the Calvin cycle
c. the light dependent reaction
_____15. During photosynthesis CO2 is____ to form carbohydrates.
a. oxidized
b. reduced
_____16. Chlorophyll will be found in___ and plant leaf cells.
a. photosynthetic bacteria
b. animal cells
c. all of the above
_____17. In some places, the thylakoids are stacked to form what look like piles of seeds called
grana.
a. true
b. false
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Cellular Energetics Test
_____18. The light-independent reactions of photosynthesis must take place in the dark.
a. true
b. false
_____19. The energy-capturing reactions take place during the ___ reactions.
a. light-dependent
b. light- independent
_____20. When NADP+ accepts electrons it becomes___.
a. CO2
b. CH2O
c. NADPH
d. H2O
_____21. The light dependent reaction cannot take place without light.
a. true
b. false
_____22. When electrons from chlorophyll a move down an electron transport system____ is
produced.
a. H2O
b. ATP
_____23. ATP production during photosynthesis is sometimes called photophosphorylation because
light is involved.
a. true
b. false
_____24. When ATP is formed the enzyme____is utilized
a. ATPase
b. catalase
c. sucrase
_____25. Which of the following is NOT a product of the light-dependent reactions?
a. ATP
b. O2
c. Glucose
d. NADPH
_____26. When H+ flows down their electrochemical gradient through___ ATP production occurs.
a. PS I
b. PS II
c. ATP synthase
d. the stroma
_____27. During the light-dependent reactions, H2O is___
a. split
b. reduced
c. produced
_____28. A plant can use PGAL, one of the products of the Calvin cycle can make
a. sucrose
b. oils
c. cellulose
d. all of the above
_____29. The first step of the Calvin Cycle is
a. CO2 fixation
b. ATP synthesis
_____30. Plants that are adapted to hot dry environments are called
a. Venus fly traps
b. C4 plants
c. C3 plants
____ 31. The final hydrogen acceptor in cellular respiration.
A. water
B. oxygen
C. carbon
D. hydrogen
____32. Which of the following liberates the most energy in the form of ATP?
A. anaerobic respiration
B. aerobic respiration
C. alcoholic fermentation
D. lactate fermentation
____ 33. The correct operations sequence of the three processes listed below is:
I glycolysis II electron transport (ETP) III Krebs
A. I > III > II
B. II> I > III
C. III > I > III D. I > II > III
____ 34. For glycolysis to begin,
A. Glucose must enter the mitochondria
B. Oxygen must be available
C. There must be an input of energy from ATP
D. none of the above
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Cellular Energetics Test
____ 35. In the breakdown of glucose, a phosphorylated six-carbon compound is split into two threecarbon compounds, which are named
A. lactate
B. acetyl-CoA
C. Pyruvate D. acetaldehyde
____ 36. How many ATP molecules (net yield) are produced during cellular respiration?
A. 1
B. 2
C. 4
D. 30
E. 38
____ 37. Substrate-level phosphorylation
A. occurs during glycolysis
B. requires the presence of oxygen
C. is the source for the majority of ATP produced in aerobic respiration
____ 38. The chemical that enters the mitochondria to continue respiration is
A. PGAL
B. oxaloacetate
C. PGA
D. Acetyl Co-A
____ 39. When glucose is used as the energy source, the largest amount of ATP molecules is
produced in
A. acetyl CoA formation
B. Krebs cycle
C. electron tansport phosphorylation
D substrate level phosphorylation
____ 40.The electron transport system of cellular respiration is located
A. on the inner membrane of the mitochondria
B. on the inner membrane of chloroplasts
C. throughout the cytoplasm of the cell
____ 41. The ultimate electron and H+ acceptor in aerobic respiration is
A. O2
B. CO2
C. ADP
D. H2O
E. NAD+
____ 42. During electron transport which ions accumulate in the outer compartment of the
mitochondria?
A. Hydrogen
B. Oxygen
C. Calcium
D. Phosphorous
____ 43. The amount of energy released from a glucose molecule is dependent on what happens to
A. hydrogen atoms B. carbon atoms
C. phosphorous atoms
Matching: Choose the most appropriate answer.
44____Glycolysis
A. transition reaction
45____Fermentation
B. produces ATP, NADH, and CO2
46____Acetyl Co-A formation
C. splits glucose into 2 pyruvate molecules
47____Krebs cycle
D. pyruvate is converted into lactate or alcohol
48____Electron transport
E. uses a membrane system that contains
phosphorylation
cytochrome proteins to produce ATP
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Cellular Energetics Test
Essays: Please answer all questions as completely as possible on notebook paper or in the spaces
provided.
1. Describe the mode of action of an enzyme (i.e. How does it work?). What are some factors that
affect enzyme activity?. (4)
2. What are the roles of Coenzymes in metabolism? Which coenzymes are used in respiration? (4)
3. Is glycolysis an energy requiring or energy releasing process? Explain. (2)
4. How are the light independent reactions dependent on the light reactions of photosynthesis? (4)
5. List and Explain the 4 major steps of cellular respiration. (8)
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