Photosynthesis Practice Worksheet With Answer Key Page 9
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13Photo_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.
B.
plant cells only.
C.
animal 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
C.
respiration
D. photosynthesis
page 9
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