Cell Energy Pre-test
1. Most of the ATP creation during respiration occurs as a result of what driving force?
a. Electrons moving down a concentration gradient
b. Electrons moving down the electron transport chain
c. Protons moving down a concentration gradient
d. Sodium ions moving down a concentration gradient
e. Movement of pyruvate from the cytoplasm into the mitochondria
2. Which of the following processes occurs in both respiration and photosynthesis?
a. Calvin cycle
b. Chemiosmosis
c. Citric cycle
d. Krebs cycle
e. Glycolysis
3. What is the cause of the cramps you feel in your muscles during strenuous exercise?
a. Lactic acid fermentation
b. Alcohol fermentation
c. Chemiosmotic coupling
d. Too much oxygen delivery to the muscles
e. Oxidative phosphorylation
4. Which of the following statements is incorrect?
a. Glycolysis can occur with or without oxygen.
b. Glycolysis occurs in the mitochondria.
c. Glycolysis is the first step of both anaerobic and aerobic respiration.
d. Glycolysis of one molecule of glucose leads to the production of 2 ATP, 2 NADH, and 2 pyruvate.
For questions 5- 8, use the following answer choices:
a. Glycolysis
b. Krebs Cycle
c. Oxidative phosphorylation
d. Lactic acid fermentation
e. Chemiosmosis
5.
6.
7.
8.
This reaction occurs in the matrix of the mitochondria and includes FADH2 among its products.
This reaction is performed to recycle NAD+ needed for efficient respiration.
This process uses the proton gradient created by the movement of electrons to form ATP.
This process inculdes the reactions that use NADH and FADH2 to produce ATP.
9. Which of the following molecules can give rise to the most ATP?
a. NADH
b. FADH2
c. Pyruvate
d. Glucose
10. Which of the following is a proper representation of the products of a single glucose molecule after it has
completed the Krebs cycle?
a. 10 ATP, 4 NADH, 2 FADH2
b. 10 NADH, 4 FADH2, 2 ATP
c. 10 ATP, 4 FADH2, 2 NADH
d. 10 NADH, 4 ATP, 2 FADH2
e. 10 NADH, 4 FADH2, 2 ATP
Questions 11-14 refer to the following answer choices - use each answer only once.
a.
b.
c.
d.
e.
Transpiration
Calvin cycle
CAM photosynthesis
Cyclic photophosphorylation
Noncyclic photophosphorylation
11. Plants use this process so that they can open their stomata at night and close their stomata during the
avoid water loss during the hot days, without depleting the plant's CO2 reserves.
day to
12. Uses NADPH, ATP, and CO2 as the inputs to its reactions.
13. Photosynthetic process that has ATP as it sole product. There is no oxygen and no NADPH produced from these
reactions.
14. The process by which plants lose water via evaporation through their leaves.
15. The photosynthetic process performed by some plants in an effort to survive the hot and dry conditions of
climates such as the desert is called
a. carbon fixation.
b. C3 photosynthesis.
c. C4 photosynthesis.
d. cyclic photophosphorylation.
e. noncyclic photophosphorylation.
16. Which of the following is the photosynthetic stage that produces oxygen?
a. The light-dependent reactions
b. Chemiosmosis
c. The Calvin cycle
d. Carbon fixation
e. Photorespiration
17. Which of the following reactions occur in both cellular respiration and photosynthesis?
a. Carbon fixation
b. Fermentation
c. Reduction of NADP+
d. Chemiosmosis
e. Formation of NADH
18. Which of the following is not a product of the light-dependent reactions of photosynthesis?
a. O2
b. ATP
c. NADPH
d. Sugar
19. Which of the following is an advantage held by a C4 plant?
a. More efficient light absorption
b. More efficient photolysis
c. More efficient carbon fixation
d. More efficient uptake of carbon dioxide into the stomata
e. More efficient ATP synthesis during chemiosmosis
20. Carbon dioxide enters the plant through the
a. Stomata
b. Stroma
c. Thylakoid membrane
d. Bundle sheath cell
21. Which of the following is the source of the oxygen released during photosynthesis?
a. CO2
b. H2O
c. Rubisco
d. PEP carboxlase
e. Pyruvate
22. Which of the following is an incorrect statement about the Calvin cycle?
a. The main inputs to the reactions are NADPH, ATP, and CO2.
b. The main outputs of the reactions are NADP+, ADP, and sugar.
c. More NADPH is used than ATP during the Calvin cycle.
d. Carbon fixation is the first step of the process.
e. The reactions occur in the stroma of the chloroplast.
23. Which of the following is the source of the carbon in sugar produced during photosynthesis?
a. CO2
b. H20
c. Rubisco
d. PEP carboxlase
e. Pyruvate
24. The light-dependent reactions of photosynthesis occur in the
a. stroma.
b. mitochondrial matrix.
c. thylakoid membrane.
d. cytoplasm.
e. nucleus.