Download Energetics Test Review

UNIT 5: CELLULAR ENERGETICS TEST REVIEW
1. The electron receptor in the electron transport chain in photosynthesis is_______________________
2. The electron receptors in the ETC during cellular respiration are______________ and _____________
3. The oxidized electron receptors are:__________(photosynthesis) and ____________ & ____________
4. The reduced electron receptors are:__________(photosynthesis) and ____________ & ____________
5. Using the equation ADP + P + Energy  ATP, explain how ATP is produced.
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6. Once ATP is produced in the equation in #5, how is it used?
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7. Describe the light reaction of photosynthesis. In your answer, include the products and reactants, and
explain how is ATP used in photosynthesis?
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8. The figures below depict free energy change during the processes of photosynthesis and cellular
respiration. Label the correct graph according to which process is represented and WRITE the products
and reactants above each bar graph. Write whether the reaction is endergonic or exergonic.
________________________________________ _________________________________________
9. The light dependent reactions produce ATP and NADPH. How does the Calvin cycle use the products
of the light dependent reactions?
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10. The stomata of a plant (plural stoma) are minute openings in the epidermis used to control gas
exchange between a plant and its environment. What effect on photosynthesis would occur if the stoma
in a plant were opened more frequent than normal?
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11. At what wavelength does chlorophyll a best absorb light? ___________ Chlorophyll b? ___________
12. Why are plants green?
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13. The conversion of energy from glucose to ATP during cellular respiration has an efficiency of
approximately 40%. What is the fate of the energy from glucose that is not converted into ATP?
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14. Explain where each of the following reactions takes place
a. Light-dependent reaction: ___________________ (Organelle) and __________ __________________
b. Calvin Cycle: ______________________ (Organelle) and _____________________________________
c. Glycolysis: ________________________ (Organelle) and _____________________________________
d. Link reaction: ______________________ (Organelle) and ____________________________________
e. Citric Acid Cycle: ____________________(Organelle) and ____________________________________
f. Oxidative phosphorylation:________________ (Organelle) and ________________________________
15. Complete the following chart
Process
Inputs
Outputs
Net ATP
Produced
LightDependent
Reaction
Calvin Cycle
Glycolysis
Link
Reaction
Citric Acid
Cycle
Oxidative
Phosphorylation
16. Examine the molecule below. Is this molecule used for long-term or short-term energy?
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17. If one were to interfere with the transfer of electrons between complex 1 and complex 2 in the
figure below, what would be expected to occur in the mitochondria where the interference occurred?
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18. All organisms, regardless of complexity, undergo glycolysis. If the organism is anerobic, where do the
products of glycolysis go?______________________________________. Where does this reaction take
place?___________________________________________. If the organism is aerobic, where do the
products of glycolysis go? _____________________________________. Can an aerobic organism
undergo anaerobic respiration? ___________________________________. When would this occur?
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19. Pyruvate is a 3-Carbon sugar produced from the cleaving of a molecule of glucose during the process
of glycolysis. How does pyruvate enter the mitochondria? _____________________________________
20. Describe the flow of electron travel during aerobic respiration using the following words: Food, Citric
Acid Cycle, ATP, NAD+
________________  __________________ ________________  __________________
21. What’s the primary role of oxygen in cellular respiration?
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22. All biomolecules can be used as a fuel source for cellular respiration. What is the evolutionary
advantage to multiple entry points for biological molecules along the pathway of aerobic cellular
respiration?
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