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In cellular respiration, most ATP produced directly as a result of ______.


A) fermentation
B) the electron transport chain
C) the citric acid cycle
D) the preparatory stage
E) the Calvin cycle

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When you exhale what two stages of cellular respiration produce the carbon dioxide you are breathing out?


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

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A product of glycolysis is ______


A) ethyl alcohol
B) lactic acid
C) pyruvate
D) oxygen
E) acetyl CoA

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What must pyruvic acid be converted into before it can enter the citric acid cycle?


A) lactic acid
B) ethyl alcohol
C) acetyl CoA
D) citric acid
E) pyruvate

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The cristae of a mitochondrion are critical ________.


A) in providing a space for glycolysis to occur
B) in creating a space for concentration of H+.
C) as a site for the electron transport chain
D) both as a site for the electron transport chain and creating a space for concentration of H+
E) in providing a place for the Calvin cycle

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Which of the following is not a product of cellular respiration?


A) oxygen
B) water
C) carbon dioxide
D) ATP
E) ADP

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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

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A family took their newborn to the doctor. They were worried something was wrong because she seemed to be in constant pain. The baby had large amounts of lactic acid accumulating in his muscles cells. Doctors figured out that the child had a rare disease in which mitochondria are missing from skeletal muscle cells. Which of the following statements explains what they found?


A) The cells had been going through fermentation to produce energy.
B) The muscles required small amounts of sugar to function.
C) The muscles require extremely high levels of oxygen to function.
D) The muscle cells can not split glucose into pyruvic acid.
E) The cells had died as a result of no mitochondria.

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The products of fermentation of bacteria can be used to produce


A) lactose used in making yogurt.
B) lactic acid used in making beer.
C) lactic acid used in making bread.
D) lactose used in making beer.
E) lactose used in making wine.

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Which of the following is an incorrect match of process to location?


A) citric acid cycle - matrix of mitochondria
B) glycolysis - cytoplasm
C) ATP production in the electron transport chain - cristae of mitochondria
D) preparatory reaction - matrix of mitochondria
E) preparatory reaction - cristae of mitochondria

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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

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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

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Glucose is a six-carbon molecule. How is it changed as it moves through glycolysis?


A) Electrons and hydrogen are removed, and the molecule rearranged to form two three-carbon molecules.
B) ATP is added, and the molecule rearranged to form three two-carbon molecules.
C) Electrons and hydrogen are removed, and the molecule rearranged to form three two-carbon molecules.
D) Electrons and hydrogen are removed, and the molecule rearranged to form three ATP molecules.
E) ATP is added, and the molecule rearranged to form two three-carbon molecules.

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ATP is invested in glycolysis to ________.


A) produce acetyl-CoA
B) break glucose into two molecules
C) add a phosphate group to glucose
D) join glucose molecules together
E) release carbon dioxide

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


A) There would be a slight 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 not proceed.
E) There would be an increase in ATP produced.

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Cellular respiration can be described as the conversion of the energy ________.


A) stored in food to energy stored in ATP.
B) stored in ATP to energy used to do work
C) of sunlight to energy stored in inorganic compounds
D) stored in ATP to energy stored in food.
E) stored in leaves to energy in food

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The enzyme that converts pyruvic acid into acetyl CoA requires vitamin B1, also called thiamine. Vitamin B1 has to be taken in through the diet of an individual. At what phase would cellular respiration come to a halt without B1?


A) glycolysis
B) preparatory reaction
C) citric acid cycle
D) electron transport chain

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What is oxidation?


A) addition of H atoms to form molecules
B) removal of H atoms 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

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Energy is released from ATP when


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

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The products of fermentation depend on the type of organism carrying out the process. Yeasts are used to produce


A) wine, beer, and bread with lactic acid fermentation.
B) only wine and beer with lactic acid fermentation.
C) wine, beer, and bread with alcohol fermentation.
D) wine and beer with alcohol fermentation and bread with lactic acid fermentation.
E) wine with alcohol fermentation and beer and bread with lactic acid fermentation.

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