Photosynthesis vs. Cellular Respiration Test Review
1. Write the equation for photosynthesis and respiration. In both equations: put a circle around C6H12O6
and 6O2. Put a square around 6CO2 and 6H2O. Underline the reactants and put a star under the
products. What do both photosynthesis and respiration convert? (energy, protein, or DNA)
Respiration-
Photosynthesis-
Use Figure 1 to answer questions 2-3
Figure 1
2. What wavelength of light is most efficient for
photosynthesis using chlorophyll a and b, and what colors
are reflected the most?
3. What type of energy conversion occurs in photosynthesis?
(Example: chemical to mechanical)
Use Figure 2 to answer questions 4-6
Figure 2
4. Where does photosynthesis and respiration take place (organelles)?
5. Chlorophyll is a component of which specialized cell? (root, leaf,
stem, or pollen)
6. What is the function of the stomata? What cell structure has the
same function?
7. Which phrase, if placed in box X, would correctly complete the flowchart shown below?
A
B
C
D
Decreased ATP in root cells
Decreased concentration of oxygen in leaf cells
Increased use of starch in root cells
Increased concentration of glucose in leaf cells
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8. Why is glycolysis considered an anaerobic process and how many ATP are produced versus aerobic
respiration in the mitochondria?
9. Which of these statements best explains the process of energy conversion that takes place in the
mitochondria?
a. Energy is required for carbon dioxide molecules to form six-carbon sugar molecules.
b. Water molecules and radiant energy are necessary for anaerobic respiration to take place.
c. Oxygen molecules release energy in the form of heat during combustion reactions.
d. The energy in the bonds of glucose molecules is transferred to the phosphate bonds in ATP.
A biological process that occurs in plants is represented below.
10. Which row in the chart below identifies the lettered substances in this process?
light
carbon
light
dioxide
11. What gas is being released in the picture below? What is being tested in the experiment? Formulate
a possible hypothesis. (If…..then….)
Use the picture to the right for the following questions:
12. What is the source of all of Earth’s energy?
13. Where are carbohydrates converted into ATP?
14. Where are energy rich carbohydrates produced?
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15. What is needed for photosynthesis to occur?
16. In which organisms does cellular respiration occur? Why(where does the process take place)?
(plants/animals/both)
17. In which organisms does photosynthesis occur?(plants/animals/both)
18.Circle the answer choice below (1,2,3,4) that makes the diagram below accurate.
19. What is wrong with the diagram to the right?
20. Which of the following is the correct sequence of events in cellular respiration?
A Glycolysis - Krebs cycle - electron transport
B Krebs cycle - glycolysis - electron transport
C Krebs cycle - electron transport - glycolysis
D Glycolysis - fermentation - Krebs cycle
22. Cellular respiration can involve one of two pathways, aerobic respiration or anaerobic respiration.
Which of the following is a correct statement?
a. Anaerobic respiration produces 36 ATP in the presence of O2.
b. Anaerobic respiration produces 2 ATP in the absence of O2
c. Aerobic respiration produces 2 ATP in the absence of O2
d. Aerobic respiration produces 36 ADP in the presence of O2.
23. Why will a muscle cell contain more mitochondria on average than a blood cell?
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Use the picture to the right to answer the following questions:
18. What are the reactants of photosynthesis and
the products of cellular respiration?
19. Put the steps of cellular respiration in order.
24. Changes in water pressure within guard cells cause the cells to open or close the stoma. This
response helps the plant maintain homeostasis by --a. allowing oxygen needed for photosynthesis to enter the plan
b. stabilizing the plant’s temperature through the evaporation of water
c. enabling the plant to release more carbon dioxide at night for photosynthesis
d. regulating the amount of water the plant loses during transpiration
Define the following
25. ATP –
26. Autotroph –
27. Heterotroph –
28. Identify the molecules below, describe the function of the biomolecules, circle the molecule/s
below that would make up the cuticle of the plant leaf, and put a square around the molecule
providing quick energy for respiration.
A
B
C
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