Photo_Cell_Resp_Practice
Name:
1.
Which molecule supplies the energy for cellular functions?
A. ATP B. oxygen C. DNA
2.
Photosynthesis
The following equation represents the process of photosynthesis in green plants.
Date:
D. water
What happens to most of the light energy during photosynthesis?
A. It is transformed into heat energy.
C. It is changed into carbon dioxide.
B. It is transformed into chemical energy.
D. It is changed into oxygen.
3.
The following equation represents the process of photosynthesis in green plants.
(Carbon Dioxide + Water, in the Presence of Light and Chlorophyll
!
Sugar + Oxygen)
What happens to most of the light energy during photosynthesis?
A. It is transformed into heat energy.
C. It is changed into carbon dioxide.
B. It is transformed into chemical energy.
D. It is changed into oxygen.
page 1

Photo_Cell_Resp_Practice
4.
A sprig of an Elodea plant was placed in a test tube as shown below. The test tube was then placed in sunlight for 6 hours.
The bubbles of gas in the diagram are composed mainly of
A. carbon monoxide B. carbon dioxide C. nitrogen D. oxygen
5.
A student picked up Ball A o a shelf and threw it. Which of the following would show the ow of energy from its source?
A. Light energy from the sun
!
chemical energy in food
!
chemical energy in the student
!
mechanical energy in the ball
B. Light energy from the sun
!
chemical energy in the student
!
chemical energy in food
!
mechanical energy in the ball
C. Chemical energy in the student
!
mechanical energy in the ball
!
chemical energy in food
!
light energy from the sun
D. Chemical energy in the student
!
chemical energy in food
!
mechanical energy in the ball
!
light energy from the sun 2002
6.
In the process of photosynthesis, light energy is used to split water into hydrogen and oxygen. The hydrogen combines with carbon dioxide to ultimately produce .
A. glucose B. nitrates C. chlorophyll D. hydrogen peroxide
7.
Plants, like all other organisms, are composed of cells.
A group of students placed spinach leaves in a beaker of water in full sunlight. After several hours, small bubbles appeared on the leaves. These bubbles probably consisted of .
A. H
2
O B. O
2
C. CO
2
D. H
2 page 2

Photo_Cell_Resp_Practice
8.
Which of the following best describes how plants use the energy they receive from sunlight?
A. They change water into heat.
C. They make minerals for their roots.
B. They produce their own food.
D. They break down nutrients into rocks.
9.
Which of the following materials are direct products of photosynthesis?
A. fats and starches
C. proteins and amino acids
B. oxygen and sugar
D. carbon dioxide and water
10. Which of the following statements best describes photosynthesis?
A. Carbon dioxide and water are turned into sugar and oxygen.
B. Sugar and oxygen are turned into water and carbon dioxide.
C. Oxygen and carbon dioxide are turned into water and sugar.
D. Water and sugar are turned into oxygen and carbon dioxide.
11. Cyanide is a powerful poison because it inhibits an enzyme in mitochondria, preventing the transfer of energy during one of the steps in cellular respiration. This poison would directly a ect the production of which of the following molecules?
A. ATP B. glucose C. oxygen D. RNA page 3

Photo_Cell_Resp_Practice
12. The graph below shows the amount of ATP produced in a cell during a period of time.
According to the graph, which of the following processes must have increased between points A and B?
A. cellular respiration B. cytokinesis C. DNA replication D. meiosis
13. Which of the following occurs during photosynthesis?
A. CO
2 is used to produce water.
C. CO
2 and H
2
O are converted to carbohydrates.
B. CO
D. CO
2
2 is absorbed by mitochondria.
and H
2
O are combined into carbonic acid.
14. In which of the following ways are photosynthesis and cellular respiration alike?
A. Both processes produce glucose.
C. Both processes take place in chloroplasts.
B. Both processes consume carbon dioxide.
D. Both processes involve energy transformations.
15. Many land plants store energy in starch. When energy is needed, the starch molecules can be broken down quickly.
This chemical reaction produces which of the following?
A. amino acids B. lipids C. monosaccharides D. RNA chains page 4

Photo_Cell_Resp_Practice
16. Which of the following most likely happens in the cells of a person running in the Boston Marathon?
A. The respiration rate increases to produce more ATP.
B. The replication rate increases to produce more DNA.
C. The photosynthesis rate increases to produce more sugars.
D. The cell division rate increases to produce more muscle bers.
17. Both photosynthesis and cellular respiration involve all of the following except
A. chlorophyll.
B. glucose.
C. oxygen.
D. water.
18. Which of the following statements correctly describes the processes of photosynthesis and cellular respiration?
A. Photosynthesis and cellular respiration occur in the same organelle.
B. Photosynthesis and cellular respiration are performed by all organisms.
C. Photosynthesis produces carbon dioxide, and cellular respiration uses carbon dioxide.
D. Photosynthesis stores energy for cells, and cellular respiration releases energy for cells.
19. An equation for a biochemical reaction is shown below.
Which of the following happens during this reaction?
A. Energy from ATP is used to make glucose.
B. ADP adds a high-energy bond to its structure.
C. ADP is metabolized to provide oxygen to a cell.
D. Energy is stored in the molecule ATP for future use.
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Photo_Cell_Resp_Practice
20. Which of these best explains the di erence between the way animals and plants exchange gases with their environments?
A. Animals use only photosynthesis, while plants use both photosynthesis and respiration.
B. Animals use only respiration, while plants use both photosynthesis and respiration.
C. Animals use both photosynthesis and respiration, while plants use only respiration.
D. Animals use both photosynthesis and respiration, while plants use only photosynthesis.
21. Which of these would lead to a lower rate of photosynthesis in a plant?
A. an increase in the amount of oxygen in the air
B. a decrease in the amount of oxygen in the air
C. an increase in the amount of carbon dioxide in the air
D. a decrease in the amount of carbon dioxide in the air
22. Which statement describes a way in which cellular respiration di ers from photosynthesis?
A. Cellular respiration consists of two phases.
B. Cellular respiration releases carbon dioxide.
C. Cellular respiration provides energy for the cell.
D. Cellular respiration is carried out in one speci c organelle.
23. Which statement best distinguishes aerobic from anaerobic respiration?
A. Only aerobic respiration involves fermentation.
B. Only anaerobic respiration occurs in the mitochondria.
C. Only aerobic respiration requires oxygen.
D. Only anaerobic respiration produces carbon dioxide.
page 6

Photo_Cell_Resp_Practice
24. Which most accurately describes the di erence in ATP production between aerobic respiration and anaerobic respiration?
A. Aerobic respiration produces more ATP than anaerobic respiration.
B. Anaerobic respiration produces more ATP than aerobic respiration.
C. Only anaerobic respiration produces measurable amounts of ATP.
D. Anaerobic and aerobic respiration produce the same amount of ATP.
25. Which organism is most likely to use anaerobic respiration?
A. bird B. moss C. tree D. yeast
26. The bacteria that cause tetanus can survive in a puncture wound that has healed on the outer surface of the skin.
Through what process do these bacteria acquire the energy they need to survive?
A. aerobic respiration B. anaerobic respiration C. chemosynthesis D. photosynthesis
27. In terms of ATP production, which process results in the most stored energy?
A. aerobic respiration B. anaerobic respiration C. fermentation D. photosynthesis
28. In which way are photosynthesis and cellular respiration di erent?
A. Cellular respiration stores ATP, while photosynthesis releases ATP.
B. Cellular respiration produces oxygen, while photosynthesis uses oxygen.
C. Photosynthesis releases energy, while cellular respiration stores energy.
D. Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.
29. Which two processes work together to cycle oxygen through an ecosystem?
A. respiration and precipitation
C. respiration and photosynthesis
B. evaporation and precipitation
D. evaporation and photosynthesis page 7

Photo_Cell_Resp_Practice
30.
Which gas is forming in the test tube shown above?
A. carbon dioxide B. hydrogen C. oxygen
31. Which of the following is broken down in the body to release energy?
A. sugar B. water C. salt
D. nitrogen
B. temperature-dependent.
D. ATP-driven.
D. oxygen
32. Which of the following is produced when sugar is digested in an animal cell?
A. carbon dioxide B. chlorophyll C. oxygen D. sunlight
33. During photosynthesis in plants, what is the source of the carbon in the sugar molecule (C
6
H
12
O
6
)?
A. carbon dioxide in the air
C. carbon particles in the soil
B. carbon monoxide in the air
D. carbon particles in water
34. The rst stage of photosynthesis in a chloroplast is
A. light-dependent.
C. glucose-driven.
35. Which molecule in plant cells rst captures the radiant energy from sunlight?
A. glucose B. carbon dioxide C. chlorophyll D. adenosine triphosphate page 8

Photo_Cell_Resp_Practice
36. In aerobic respiration, the Krebs cycle (citric acid cycle) takes place in
A. chloroplasts.
B. nuclei.
C. lysosomes.
D. mitochondria.
37. The process of cellular respiration occurs in
A. both plant and animal cells.
C. animal cells only.
B. plant cells only.
D. neither plant nor animal cells.
38. Which of these supply the main energy source used in cellular respiration?
A. lipids B. amino acids C. nucleic acids D. carbohydrates
39. The energy required for photosynthesis is provided by
A. proteins B. sunlight C. chlorophyll D. carbohydrates
40. Use the information and the graph below to answer the following question(s).
A group of students measured the volume of air they exhaled during three di erent activities: sitting, walking, and running. The volume of exhaled air is directly related to the amount of carbon dioxide produced. The data the students collected are summarized in the graph below.
MEASUREMENT OF EXHALED AIR
Which of these processes produces carbon dioxide?
A. mitosis B. di usion page 9
C. respiration D. photosynthesis

Photo_Cell_Resp_Practice
41. Which of the following pairs of materials is required for a cell to carry on respiration?
A. water and oxygen
C. water and carbon dioxide
B. glucose and oxygen
D. glucose and carbon dioxide
42. Bromothymol blue solution turns from blue to green when small amounts of carbon dioxide are released into the solution. A water sample is suspected of being contaminated with bacteria. Bromothymol blue would be most useful in detecting which biological process carried out by these bacteria?
A. cellular respiration B. cell division C. photosynthesis D. fertilization
43. Which summary equation represents a process that releases the greatest amount of energy from a molecule of glucose?
A. glucose
!
2 lactic acid B. glucose
!
2 ethyl alcohol + 2 carbon dioxide
C. glucose + 6 oxygen
!
6 water + 6 carbon dioxide D. glucose + fructose
!
sucrose + water
44. In the respiratory pathway of some organisms, when oxygen is unavailable, pyruvic acid is converted to
A. peptide chains B. hydrolytic enzymes C. lactic acid D. nucleic acid
45. This series of reactions includes the process known as
A. digestion
C. fermentation
B. dehydration synthesis
D. hydrolysis
46. This equation represents a process that occurs in both plants and animals.
glucose + oxygen
!
water + carbondioxide + 36 ATP
Within which organelles are most of the 36 ATP molecules produced?
A. ribosomes B. endoplasmic reticula C. nuclei D. mitochondria
47. Aerobic cellular respiration requires an adequate supply of
A. oxygen B. carbon dioxide C. ethyl alcohol D. starch page 10

Photo_Cell_Resp_Practice
48. When glucose molecules are fermented by yeast, the products formed include molecules of
A. glycogen B. alcohol C. oxygen D. cellulose
49. All the arrows are associated with the process of
A. carbon xation
B. photochemical reaction
C. anaerobic respiration
D. aerobic respiration
50. Letter
X most likely represents
A. ATP B. maltose C. lactic acid D. PGAL page 11

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Photo_Cell_Resp_Practice 04/12/2013
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Teacher's Key Page 2