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At the cellular level,photosynthesis occurs within


A) the chloroplast.
B) the cristae of the mitochondria.
C) both chloroplasts and mitochondria.
D) all plant cell organelles.
E) the nucleus of plants but not of animals.

F) B) and C)
G) B) and E)

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The first step of the cyclic electron pathway involves the removal of the electrons from water.

A) True
B) False

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Only organisms with chloroplasts are capable of photosynthesis.

A) True
B) False

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Which molecule would you need to radioactively label in order to produce radioactive oxygen during photosynthesis?


A) carbon dioxide.
B) water.
C) cytochrome.
D) glucose.
E) G3P.

F) All of the above
G) A) and D)

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How much of the protein content in chloroplasts is made up of the enzyme RuBP carboxylase? Why?


A) less than 1%; the enzyme is very fast
B) less than 1%; the enzyme also catalyzes several side reactions
C) 20-50%; the enzyme also catalyzes several side reactions
D) 20-50%; the enzyme is very slow
E) almost 100%; the enzyme is very slow

F) None of the above
G) B) and C)

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In which plant structure does photosynthesis primarily occur?


A) root
B) stem
C) leaf
D) petiole
E) bark

F) D) and E)
G) A) and B)

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The main function of stomata is to


A) expose the chlorophyll to sunlight.
B) transport water to the chlorophyll.
C) allow passage of CO2 and O2 into the leaf.
D) store glucose.
E) store pyruvate and provide the site of the Calvin cycle.

F) A) and B)
G) All of the above

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To what does the term stroma refer?


A) the cytochrome system in the membranes of the thylakoids
B) a stack of thylakoid membrane structures
C) the double membrane of the chloroplast
D) a flattened disk or sac in the chloroplast
E) the central fluid-filled space of the chloroplast

F) B) and E)
G) A) and B)

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Which statement about photosynthesis and cellular respiration is true?


A) Photosynthesis produces water while cellular respiration uses water.
B) Photosynthesis produces oxygen while cellular respiration uses oxygen.
C) Photosynthesis occurs in mitochondria while cellular respiration occurs in chloroplasts.
D) Photosynthesis breaks down carbohydrates while cellular respiration produces carbohydrates.
E) Photosynthesis requires oxygen while cellular respiration requires sunlight.

F) A) and C)
G) C) and E)

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NADPH and ATP are used in the


A) noncyclic electron pathway.
B) cyclic electron pathway.
C) Calvin cycle reactions.
D) citric acid cycle.
E) light reactions.

F) A) and D)
G) A) and C)

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The raw materials or reactants of the photosynthetic process include


A) glucose and oxygen.
B) carbon dioxide and glucose.
C) carbon dioxide and water.
D) carbon dioxide and oxygen.
E) glucose and water.

F) B) and E)
G) D) and E)

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How many membranes does a chloroplast have?


A) one
B) two
C) three
D) four
E) five

F) A) and E)
G) None of the above

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What are the products of photosynthesis?


A) water and carbon dioxide
B) water and oxygen
C) carbohydrate and water
D) oxygen and carbohydrate
E) carbon dioxide and carbohydrate

F) A) and B)
G) D) and E)

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Which of the following is a CAM plant?


A) rice
B) cactus
C) corn
D) wheat
E) sugarcane

F) C) and D)
G) B) and C)

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Which statement about producers and/or consumers is true?


A) Consumers not only feed themselves but also feed producers.
B) All animals must be either producers or consumers.
C) Producers produce more food than they use.
D) Consumers are not dependent upon other organisms for food.
E) Only one species of producer and consumer can exist in any single community.

F) A) and C)
G) A) and B)

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Write the overall chemical equation for photosynthesis and cellular respiration.

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Energy + 6...

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Which of the following statements is false?


A) During cellular respiration, carbohydrate energy is converted into ATP.
B) During cellular respiration, mitochondria release carbon dioxide.
C) During photosynthesis, energy from the sun is used to form carbohydrates.
D) During photosynthesis, carbon dioxide is used.
E) During photosynthesis, oxygen is used.

F) A) and E)
G) A) and D)

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Which of these is most closely associated with the process of electron transport?


A) a sequence of molecules in the membranes of the thylakoids
B) a stack of thylakoid membrane structures
C) the double membrane of the chloroplast
D) a flattened disk or sac in the chloroplast
E) the central fluid-filled space of the chloroplast

F) A) and E)
G) A) and D)

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The "antenna" system of a plant that gathers the solar energy consists of


A) the grana.
B) the epidermal cells of the leaf.
C) closely packed pigment molecules.
D) the ATP synthase complex.
E) the hydrogen ions (H+)

F) C) and D)
G) A) and B)

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In the process of photosynthesis,the light reactions follow the Calvin cycle reactions.

A) True
B) False

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