more copies of the ele? The mitochondrial cristae are an adaptation that increases the space for more copies of the electron transport chain and ATP synthase complexes.
1.carefully encloses the DNA housed within the mitochondrial matrix.
2.permits the expansion of mitochondria as oxygen accumulates in the mitochondrial matrix.
3.allows other ions (like Na+) to build up when H+ ions are not available.
4.helps mitochondria divide during times of greatest cellular respiration.
Question 2
The energy yield from the complete aerobic breakdown of a single molecule of glucose can vary with the mechanism used to shuttle NADH electrons into the mitochondrion.
1.is less than the yield from anaerobic respiration.
2.is equivalent to the yield from alcoholic fermentation.
3.increases as the supply of oxygen increases.
4.is always 38 ATP.
Question 3
When proteins are used as a source of energy for the body, the proteins are converted into glucose molecules, which are fed into glycolysis.
1.are hydrolyzed to glycerols and then converted to glyceraldehyde-3-phosphate, which is fed into glycolysis.
2.are hydrolyzed to fatty acids and converted to acetyl CoA, which enters the citric acid cycle.
3.are hydrolyzed to their constituent amino acids; electrons are stripped from the amino acids and passed to the electron transport chain.
4.are converted mainly into intermediates of glycolysis or the citric acid cycle.
Question 4
Which of the following is a result of glycolysis?
1.conversion of glucose to two three-carbon compounds
2.conversion of NADH to NAD+
3.conversion of FAD to FADH2
4.production of CO2
5.a net loss of two ATPs per glucose molecule
Question 5
The function of coenzyme A in the citric acid cycle is most like
1.throwing a baited hook into a lake and catching a fish.
2.a kid jumping up and down on a trampoline.
3.a recycling company, collecting paper and using it to manufacture new products.
4.a limousine driver dropping off a couple at the school prom.
5.a hamster in its exercise wheel, running quickly but not getting anywhere.
10 points
Question 6
Question 6
Which of the following statements about the inner mitochondrial membrane is false?
1.The inner mitochondrial membrane plays a role in the production of pyruvate.
2.The inner mitochondrial membrane is involved in chemiosmosis.
3.ATP synthase is associated with the inner mitochondrial membrane.
4.A gradient of H+ exists across the inner mitochondrial membrane.
5.Electron carriers are associated with the inner mitochondrial membrane.
Question 7
The conversion of CO2 and H2O into organic compounds using energy from light is called
1.photosynthesis.
2.cellular respiration.
3.photorespiration.
4.glycolysis.
5.fermentation.
Question 8
Pyruvate is considered a
________ aerobic cellular respiration.
1.end product of
2.source of O2 for
3.cofactor in
4.intermediate in
5.enzyme in
Question 9
Respiration ________, and cellular respiration ________.
1. produces glucose . . . is gas exchange
2.is gas exchange . . . produces ATP
3.produces glucose . . . produces oxygen
4.uses glucose . . . produces glucose
5.produces ATP . . . is gas exchange
Question 10
The label on the box of breakfast cereal lists one serving as containing 200 calories per serving. How many calories are actually in one serving?
1. 200,000
2. 2,000
3. 20,000
4. 20
5. 2,000,000
1.carefully encloses the DNA housed within the mitochondrial matrix.
2.permits the expansion of mitochondria as oxygen accumulates in the mitochondrial matrix.
3.allows other ions (like Na+) to build up when H+ ions are not available.
4.helps mitochondria divide during times of greatest cellular respiration.
Question 2
The energy yield from the complete aerobic breakdown of a single molecule of glucose can vary with the mechanism used to shuttle NADH electrons into the mitochondrion.
1.is less than the yield from anaerobic respiration.
2.is equivalent to the yield from alcoholic fermentation.
3.increases as the supply of oxygen increases.
4.is always 38 ATP.
Question 3
When proteins are used as a source of energy for the body, the proteins are converted into glucose molecules, which are fed into glycolysis.
1.are hydrolyzed to glycerols and then converted to glyceraldehyde-3-phosphate, which is fed into glycolysis.
2.are hydrolyzed to fatty acids and converted to acetyl CoA, which enters the citric acid cycle.
3.are hydrolyzed to their constituent amino acids; electrons are stripped from the amino acids and passed to the electron transport chain.
4.are converted mainly into intermediates of glycolysis or the citric acid cycle.
Question 4
Which of the following is a result of glycolysis?
1.conversion of glucose to two three-carbon compounds
2.conversion of NADH to NAD+
3.conversion of FAD to FADH2
4.production of CO2
5.a net loss of two ATPs per glucose molecule
Question 5
The function of coenzyme A in the citric acid cycle is most like
1.throwing a baited hook into a lake and catching a fish.
2.a kid jumping up and down on a trampoline.
3.a recycling company, collecting paper and using it to manufacture new products.
4.a limousine driver dropping off a couple at the school prom.
5.a hamster in its exercise wheel, running quickly but not getting anywhere.
10 points
Question 6
Question 6
Which of the following statements about the inner mitochondrial membrane is false?
1.The inner mitochondrial membrane plays a role in the production of pyruvate.
2.The inner mitochondrial membrane is involved in chemiosmosis.
3.ATP synthase is associated with the inner mitochondrial membrane.
4.A gradient of H+ exists across the inner mitochondrial membrane.
5.Electron carriers are associated with the inner mitochondrial membrane.
Question 7
The conversion of CO2 and H2O into organic compounds using energy from light is called
1.photosynthesis.
2.cellular respiration.
3.photorespiration.
4.glycolysis.
5.fermentation.
Question 8
Pyruvate is considered a
________ aerobic cellular respiration. 1.end product of
2.source of O2 for
3.cofactor in
4.intermediate in
5.enzyme in
Question 9
Respiration ________, and cellular respiration ________.
1. produces glucose . . . is gas exchange
2.is gas exchange . . . produces ATP
3.produces glucose . . . produces oxygen
4.uses glucose . . . produces glucose
5.produces ATP . . . is gas exchange
Question 10
The label on the box of breakfast cereal lists one serving as containing 200 calories per serving. How many calories are actually in one serving?
1. 200,000
2. 2,000
3. 20,000
4. 20
5. 2,000,000