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The citric acid cycle starts with ________ and yields ________.


A) lactic acid; carbon dioxide
B) glucose; 32 ATPs
C) acetyl-CoA; lactic acid or alcohol
D) acetyl-CoA, NAD +, FAD, and ADP; carbon dioxide, NADH, FADH 2, and ATP
E) carbon dioxide; oxygen

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

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When glucose is broken down to CO 2 and H 2O, ________ energy is released and converted into ________.


A) chemical; ATP
B) photon; ATP
C) kinetic; NADH
D) NADH; ATP
E) chemical; NADH

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

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What is oxidation?


A) The addition of electrons and H+ ions to form molecules
B) The removal of electrons and H+ ions to form new molecules
C) The addition of ATP to a molecule
D) The production of ATP by the use of carbon dioxide
E) Oxygen production

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

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What two stages of cellular respiration produce the carbon dioxide you exhale?


A) Preparatory reaction and citric acid cycle
B) Preparatory reaction and electron transport chain
C) Citric acid cycle and electron transport chain
D) Glycolysis and preparatory reaction
E) Glycolysis and citric acid cycle

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

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As electrons are passed down the electron transport chain, the energy released is used immediately to __________.


A) form ATP
B) concentrate H + in the intermembrane space
C) move phosphate groups to ATP synthase
D) release CO 2 to the matrix
E) concentrate H + in the cytoplasm of the cell

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

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The energy of the electrons passing along the electron transport chain is ultimately used to produce __________.


A) lactic acid
B) citric acid
C) alcohol
D) ADP
E) ATP

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

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Which of the following is mismatched?


A) Citric acid cycle - matrix of mitochondria
B) Glycolysis - cytoplasm
C) ATP production in the electron transport chain - cristae of mitochondria
D) Where the H+ ions are located before flowing through an ATP synthase complex - intermembrane space
E) Preparatory reaction - cristae of mitochondria

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

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What organelle is used during the process of cellular respiration?


A) Cytoplasm
B) Mitochondria
C) Chloroplast
D) Ribosomes
E) Cell membrane

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

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The final electron acceptor at the end of the electron transport chain is ________, resulting in formation of ________.


A) phosphate; ATP
B) CoA; acetyl-CoA
C) oxygen; water
D) hydrogen; carbon dioxide
E) pyruvate; oxygen

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

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Which of the following describes what will happen if there is a lack of oxygen during cellular respiration?


A) Cellular respiration will shift towards anaerobic respiration
B) The number of ATP produced will increase
C) Carbon dioxide will start to diffuse into the cell
D) Nothing will change since oxygen is not required for cellular respiration
E) There will be a lack of RUBP produced during the Calvin cycle

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

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What molecule most directly provides the energy you need for your muscles to contract?


A) Glucose
B) ATP
C) NADH
D) ADP
E) Oxygen

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

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What happened to the hamburger you had for lunch?


A) All of the carbohydrates were converted to ATP, while the fats and proteins were used to make molecules for the cell.
B) Carbohydrates, fats, and proteins were converted to ATP or used to make new molecules for the cell.
C) Carbohydrates and fats were converted to ATP, while only proteins were used to make new molecules for the cell.
D) All of the fats and proteins were converted to ATP, while only the carbohydrates were used to make new molecules for the cell.
E) All of the proteins were converted to ATP, while both the fats and carbohydrates were used to make new molecules for the cell.

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

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In the energy payoff phase of glycolysis, both ATP and NADH are formed. What purpose do each of these molecules serve in the cell?


A) ATP acts as a way to break up glucose to form pyruvate, while NADH serves as an electron acceptor.
B) ATP acts as a power source for the citric acid cycle, while NADH serves as energy to run the cell.
C) ATP acts as a power source for performing cellular work, while NADH serves as an electron carrier to allow for greater ATP production.
D) ATP acts as an electron acceptor, while NADH serves as a way to break up glucose to form pyruvate.
E) ATP acts as a power source for performing cellular work, while NADH acts as a power source for photosynthesis.

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

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Energy is released from ATP when __________.


A) adenine bonds to an additional phosphate group forming ADP
B) ATP bonds to oxygen forcing the adenine (A) to be removed
C) ATP is exposed to sunlight, which forces the phosphate groups to be removed
D) a phosphate group is removed from ATP yielding ADP + P + energy
E) ATP bonds to carbon dioxide forcing a phosphate to be removed

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

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Cellular respiration uses oxygen to convert the chemical energy stored in organic molecules into __________.


A) other organic molecules
B) ATP
C) carbon dioxide
D) water
E) pyruvate

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

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The cristae of a mitochondrion are critical __________.


A) because they are the location for glycolysis
B) because they contain the ATP synthase complexes
C) because they are the site for the electron transport chain
D) because they are the site of the electron transport chain and they contain the ATP synthase complexes
E) because they are the location of the citric acid cycle

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

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What would happen if NAD+ were not available for cellular respiration?


A) There would be a small reduction in the number of ATP formed.
B) There would be a great reduction in the number of ATP formed.
C) There would be no effect on the number of ATP formed.
D) Cellular respiration would stop completely.
E) There would be an increase in the number of ATP produced.

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

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Your friend has been on a diet and loses 15 pounds of fat. After studying cellular respiration, you explain to her that the fat was converted to __________.


A) ATP, carbon dioxide, and water
B) protein
C) amino acids and then eliminated from the body
D) urine and eliminated from the body
E) ATP, oxygen, and water

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

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What cellular process uses oxygen to produce ATP from glucose and other organic molecules?


A) Photosynthesis
B) Oxidation/reduction reactions
C) Cellular respiration
D) Mitosis
E) Meiosis

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

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