Question 1

One turn of the citric acid cycle produces

Accepted Answer

A)   2 NADH, FADH2, 2 ATP.
B)   3 NADH, 1 FADH2, 1 ATP.
C)   1 NADH, 3 FADH2, 2 ATP.
D)   3 NADH, 2 FADH2, 1 ATP.
E)   3 NADH, 1 FADH2, 2 ATP.F) C) and D)
G) A) and B)

Question 2

Some desert beetles can live out their life without ever drinking liquid water. They survive on "metabolic water," which

Accepted Answer

A)   was produced as water in the organisms they eat and is retained, never to pass out of the cell membrane.
B)   is absorbed from the air along with respiratory oxygen.
C)   is formed as a result of the reduction of oxygen as the final electron acceptor from the electron transport chain.
D)   is a breakdown product from glycolysis in the cytoplasm.
E)   is an original storehouse of water that is never allowed to pass out the cell membrane.F) A) and D)
G) C) and D)

Question 3

Substrates that reoccur in several metabolic pathways form the metabolic pool. Study the figure to match the substrates with the corresponding pathway.

Accepted Answer

A)   A is glycerol; B is amino acids; C is glucose; D is fatty acids
B)   A is glucose; B is fatty acids; C is glycerol; D is amino acids
C)   A is amino acids; B is fatty acids; C is glucose; D is glycerol
D)   A is amino acids; B is glucose; C is glycerol; D is fatty acidsE) C) and D)
F) A) and B)

Question 4

The preparatory reaction breaks

Accepted Answer

A)   glucose into pyruvates.
B)   pyruvates into glucose.
C)   pyruvates into acetyl-CoA and carbon dioxide.
D)   pyruvates into acetyl-CoA and water.
E)   acetyl CoA into pyruvates and carbon dioxide.F) B) and E)
G) B) and C)

Question 5

The correct sequence for aerobic metabolic breakdown of glucose is

Accepted Answer

A)   glycolysis-preparatory reaction--cirtric acid cycle--electron transport system
B)   preparatory reaction--glycolysis---electron transport--citric acid cycle
C)   electron transport system--citric acid cycle---preparatory reaction--glycolysis
D)   None of the choices are correct.E) All of the above
F) A) and B)

Question 6

Why would an organism utilize alcohol fermentation if it is wasteful of the energy in food molecules and poses a threat of death due to high levels of toxic alcohol?

Accepted Answer

A)   The organism can survive short spells of anaerobic conditions and maintain growth and reproduction.
B)   If glucose levels are not high, there may be time to disperse the alcohol "waste."
C)   Fermentation can provide a rapid burst of ATP since it does not have to go through the full breakdown cycle.
D)   All of the choices are advantages.
E)   None of the choices is an advantage; anaerobes only survive where aerobes cannot.F) C) and D)
G) None of the above

Question 7

Compare the efficiency of aerobic respiration and fermentation in ATP energy production. If aerobic respiration converts 40% of the available energy of glucose into ATP, then what percentage does fermentation convert to ATP?

Accepted Answer

Aerobic respiration produces 36 (to 38) ...

Question 8

Which of the following coenzymes will accept two electrons and two hydrogens during oxidation?

Accepted Answer

A)   FAD
B)   NAD+
C)   FADH
D)   NADHE) A) and B)
F) C) and D)

Question 9

Which of these processes occurs in the cytosol?

Accepted Answer

A)   the citric acid cycle
B)   glycolysis
C)   the electron transport system
D)   the preparatory reactionE) B) and C)
F) C) and D)

Question 10

Chloroplast are capable of running photosynthesis which is the most abundant form of anabolic metabolism in life.

Accepted Answer

A) True 
 B)False

Question 11

Adult humans cannot synthesize _____ out of the _____ common amino acids.

Accepted Answer

A)   eleven; twenty
B)   nine; eleven
C)   nine; twenty
D)   any; twenty
E)   half; allF) A) and B)
G) C) and D)

Question 12

Compared with other cell components (organelles, cell membrane or nucleus) , the mitochondria would be the only one that would

Accepted Answer

A)   form an electrochemical gradient across a membrane.
B)   use significant amounts of oxygen to produce ATP.
C)   use a chemiosmotic complex to produce ATP.
D)   produce ATP via glycolysis.
E)   release protons (H+) .F) None of the above
G) A) and B)

Question 13

Why does your body store more energy as fat than as a carbohydrate? Compare the amount of ATP produced from carbohydrates to that produced from fats to support your answer. Use the data provided.
(The following information will help with your comparisons. Both fats and carbohydrates undergo catabolism to produce ATP energy. Fat (triglyceride) is hydrolyzed to form glycerol and three fatty acids. An 18-carbon fatty acid produces approximately 108 ATP molecules when broken down. Calculate the number of ATPs produced by a fat made of 3 fatty acids, each of 18 carbon. Compare to ATPs formed from one glucose.)

Accepted Answer

Answers may vary. Our bodies store energ...

Question 14

Which statement is correct about the input and output of carbon during glycolysis?

Accepted Answer

A)   There is an input of 6 carbons (glucose)  and an output of 6 carbons (2 pyruvates) .
B)   There is an input of 6 carbons (2 pyruvates)  and an output of 6 carbons (1 glucose) .
C)   There is an input of 6 carbons (glucose)  and an output of 6 carbons (6 CO2) .
D)   There is an input of 3 carbons (glucose)  and an output of 3 carbons (pyruvate) .E) None of the above
F) A) and D)

Question 15

Compare the metabolic oxidation of proteins to the metabolic oxidation of carbohydrates in terms of efficiency and specificity.

Accepted Answer

Answers may vary. Both protein and carbo...

Question 16

What is the correct summary for the energy investment vs. energy harvesting steps of glycolysis?

Accepted Answer

A)   2 ATP are invested and 4 ATP are harvested to produce a net gain of 2 ATP.
B)   4 ATP are invested and 6 ATP are harvested to produce a net gain of 2 ATP.
C)   No ATP are invested and 2 ATP are harvested to produce a net gain of 2 ATP.
D)   2 ATP are invested and no ATP are harvested to produce a net loss of 2 ATP.E) B) and C)
F) C) and D)

Exam 8: Cellular Respiration

Adult humans cannot synthesize _ out of the _ common amino acids.

Correct Answer
verified

One turn of the citric acid cycle produces

Correct Answer
verified

Compare the metabolic oxidation of proteins to the metabolic oxidation of carbohydrates in terms of efficiency and specificity.

Correct Answer
verified
Answers may vary. Both protein and carbo...
View Answer

Which statement is correct about the input and output of carbon during glycolysis?

Correct Answer
verified

What is the correct summary for the energy investment vs. energy harvesting steps of glycolysis?

Correct Answer
verified

Which of these processes occurs in the cytosol?

Correct Answer
verified

Some desert beetles can live out their life without ever drinking liquid water. They survive on "metabolic water," which

Correct Answer
verified

Compare the efficiency of aerobic respiration and fermentation in ATP energy production. If aerobic respiration converts 40% of the available energy of glucose into ATP, then what percentage does fermentation convert to ATP?

Correct Answer
verified
Aerobic respiration produces 36 (to 38) ...
View Answer

The preparatory reaction breaks

Correct Answer
verified

Substrates that reoccur in several metabolic pathways form the metabolic pool. Study the figure to match the substrates with the corresponding pathway.

Correct Answer
verified

Compared with other cell components (organelles, cell membrane or nucleus) , the mitochondria would be the only one that would

Correct Answer
verified

Correct Answer
verified
Answers may vary. Our bodies store energ...
View Answer

The correct sequence for aerobic metabolic breakdown of glucose is

Correct Answer
verified

Why would an organism utilize alcohol fermentation if it is wasteful of the energy in food molecules and poses a threat of death due to high levels of toxic alcohol?

Correct Answer
verified

Chloroplast are capable of running photosynthesis which is the most abundant form of anabolic metabolism in life.

Correct Answer
verified

Which of the following coenzymes will accept two electrons and two hydrogens during oxidation?

Correct Answer
verified

Exam 8: Cellular Respiration

Adult humans cannot synthesize _____ out of the _____ common amino acids.

Correct AnswerverifiedShow Answer

One turn of the citric acid cycle produces

Correct AnswerverifiedShow Answer

Compare the metabolic oxidation of proteins to the metabolic oxidation of carbohydrates in terms of efficiency and specificity.

Correct AnswerverifiedAnswers may vary. Both protein and carbo...View AnswerShow Answer

Which statement is correct about the input and output of carbon during glycolysis?

Correct AnswerverifiedShow Answer

What is the correct summary for the energy investment vs. energy harvesting steps of glycolysis?

Correct AnswerverifiedShow Answer

Which of these processes occurs in the cytosol?

Correct AnswerverifiedShow Answer

Some desert beetles can live out their life without ever drinking liquid water. They survive on "metabolic water," which

Correct AnswerverifiedShow Answer

Compare the efficiency of aerobic respiration and fermentation in ATP energy production. If aerobic respiration converts 40% of the available energy of glucose into ATP, then what percentage does fermentation convert to ATP?

Correct AnswerverifiedAerobic respiration produces 36 (to 38) ...View AnswerShow Answer

The preparatory reaction breaks

Correct AnswerverifiedShow Answer

Substrates that reoccur in several metabolic pathways form the metabolic pool. Study the figure to match the substrates with the corresponding pathway.

Correct AnswerverifiedShow Answer

Compared with other cell components (organelles, cell membrane or nucleus) , the mitochondria would be the only one that would

Correct AnswerverifiedShow Answer

Correct AnswerverifiedAnswers may vary. Our bodies store energ...View AnswerShow Answer

The correct sequence for aerobic metabolic breakdown of glucose is

Correct AnswerverifiedShow Answer

Why would an organism utilize alcohol fermentation if it is wasteful of the energy in food molecules and poses a threat of death due to high levels of toxic alcohol?

Correct AnswerverifiedShow Answer

Chloroplast are capable of running photosynthesis which is the most abundant form of anabolic metabolism in life.

Correct AnswerverifiedShow Answer

Which of the following coenzymes will accept two electrons and two hydrogens during oxidation?

Correct AnswerverifiedShow Answer

Adult humans cannot synthesize _ out of the _ common amino acids.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Answers may vary. Both protein and carbo...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Aerobic respiration produces 36 (to 38) ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Answers may vary. Our bodies store energ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified