Question 1

The reactants for cellular respiration are

Accepted Answer

A)  glucose and ATP.
B)  water and ATP.
C)  oxygen and ATP.
D)  glucose and oxygen.
E)  carbon dioxide and glucosE.F) B) and D)
G) B) and E)

Question 2

Only a small amount of ATP is produced during glycolysis because most of the energy stored in a glucose molecule remains in the bonds of

Accepted Answer

A)  carbon dioxide.
B)  NADH.
C)  PGAL.
D)  pyruvate.
E)  None of the answers are correct.F) A) and B)
G) B) and C)

Question 3

An example of a poison that kills by interfering with ATP production is

Accepted Answer

A)  arsenic.
B)  carbon monoxide.
C)  All answers are correct.
D)  cyanide.
E)  mercury compounds.F) B) and C)
G) A) and E)

Question 4

Animals are

Accepted Answer

A)  net O2 producers and CO2 consumers.
B)  net O2 and CO2 producers.
C)  net O2 consumers and CO2 producers.
D)  net O2 and CO2 consumers.
E)  able to conduct photosynthesis,not cellular respiration.F) A) and B)
G) B) and D)

Question 5

Cellular aerobic respiration includes glycolysis,the Krebs cycle,and electron transport chain.

Accepted Answer

A) True 
 B)False

Question 6

Glycolysis does not require

Accepted Answer

A)  ATP.
B)  glucose.
C)  enzymes.
D)  NAD.
E)  oxygen.F) A) and E)
G) C) and D)

Question 7

Fermentation is a more efficient form of energy production than aerobic respiration.

Accepted Answer

A) True 
 B)False

Question 8

In eukaryotic cells,NADH and FADH2 are transported along the electron transport chain in the

Accepted Answer

A)  inner mitochondrial membrane.
B)  matrix.
C)  outer mitochondrial membrane.
D)  cell membrane.
E)  cytoplasm.F) D) and E)
G) B) and D)

Question 9

In eukaryotic cells,the electron transport chain occurs in the mitochondria.

Accepted Answer

A) True 
 B)False

Question 10

Plant cells complete fermentation and aerobic respiration.

Accepted Answer

A) True 
 B)False

Question 11

In the section "Investigating Life: Plants' Alternative Lifestyles Yield Hot Sex",Philodendron flowers pass electrons through an electron transport chain to generate heat.What is the source of these electrons?

Accepted Answer

A)  water
B)  oxygen
C)  ATP
D)  sunlight
E)  NADH and FADH2F) B) and D)
G) B) and E)

Question 12

In the section "Investigating Life: Plants' Alternative Lifestyles Yield Hot Sex",what is the dependent variable in the figure?

Accepted Answer

A)  temperature
B)  rate of oxygen production
C)  amount of pollen collected
D)  rate of carbon dioxide production
E)  glucose productionF) A) and E)
G) A) and B)

Question 13

Muscle cells use lactic acid fermentation to

Accepted Answer

A)  regenerate NAD+ so that glycolysis can continue in the absence of oxygen.
B)  produce ATP in the presence of oxygen.
C)  produce more ATP than in respiration.
D)  allow an animal to survive for long periods of time in the absence of oxygen.
E)  produce less CO2.F) B) and C)
G) B) and D)

Question 14

A cell produces approximately 30 ATP per glucose molecule.However,if you calculated the total energy in a glucose molecule,90 ATP should be generated.What is the best explanation for this difference?

Accepted Answer

A)  Some of the energy is destroyed.
B)  Scientists have not figured out where the rest of the energy goes.
C)  ATP has more energy than originally thought.
D)  Some of the energy is used to do work in the cell.
E)  Some energy is lost as heat.F) A) and B)
G) B) and D)

Question 15

A variety of carbohydrates,proteins,and fats in a diet

Accepted Answer

A)  provides many molecules which can enter aerobic respiration at different stages.
B)  prevents production of ATP.
C)  provides a mixture of molecules which slows ATP production.
D)  creates an environment only conducive to fermentation.
E)  All choices are correct.F) A) and D)
G) C) and D)

Question 16

In glycolysis and the Krebs cycle,electrons are removed from glucose and taken up by molecules like NAD+.In such a reaction,glucose is being _____ and NAD+ is being ____.

Accepted Answer

A)  reduced,oxidized
B)  oxidized,reduced
C)  phosphorylated,oxidized
D)  phosphorylated,reduced
E)  reduced,phosphorylatedF) A) and B)
G) A) and C)

Question 17

Fermentation cannot occur in the presence of oxygen.

Accepted Answer

A) True 
 B)False

Question 18

During glycolysis,to "activate" glucose two molecules of ____________ are required.

Accepted Answer

A)  NAD
B)  ATP
C)  FAD
D)  ADP
E)  NADPF) A) and B)
G) B) and C)

Question 19

When NAD+ picks up two electrons and a proton in reactions of the Krebs cycle to form NADH,the NAD+ is

Accepted Answer

A)  oxidized.
B)  phosphorylated.
C)  reduced.
D)  hydrolyzeD.
E)  lysed.F) A) and E)
G) A) and D)

Question 20

The net ATP production in glycolysis is only two because

Accepted Answer

A)  two molecules of ATP are needed to "activate" glucose.
B)  two molecules of ATP are used to move glucose into the chloroplast.
C)  glycolysis is the final step of aerobic respiration.
D)  ATP production cannot exceed NADH production.
E)  glycolysis may occur without oxygen being present.F) A) and C)
G) A) and E)

Exam 6: How Cells Release Energy

Plant cells complete fermentation and aerobic respiration.

Correct AnswerverifiedShow Answer

Animals are

Correct AnswerverifiedShow Answer

In glycolysis and the Krebs cycle,electrons are removed from glucose and taken up by molecules like NAD+.In such a reaction,glucose is being _____ and NAD+ is being ____.

Correct AnswerverifiedShow Answer

A cell produces approximately 30 ATP per glucose molecule.However,if you calculated the total energy in a glucose molecule,90 ATP should be generated.What is the best explanation for this difference?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Plants' Alternative Lifestyles Yield Hot Sex",what is the dependent variable in the figure?

Correct AnswerverifiedShow Answer

A variety of carbohydrates,proteins,and fats in a diet

Correct AnswerverifiedShow Answer

Fermentation is a more efficient form of energy production than aerobic respiration.

Correct AnswerverifiedShow Answer

The reactants for cellular respiration are

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Plants' Alternative Lifestyles Yield Hot Sex",Philodendron flowers pass electrons through an electron transport chain to generate heat.What is the source of these electrons?

Correct AnswerverifiedShow Answer

Muscle cells use lactic acid fermentation to

Correct AnswerverifiedShow Answer

Glycolysis does not require

Correct AnswerverifiedShow Answer

Fermentation cannot occur in the presence of oxygen.

Correct AnswerverifiedShow Answer

Cellular aerobic respiration includes glycolysis,the Krebs cycle,and electron transport chain.

Correct AnswerverifiedShow Answer

In eukaryotic cells,the electron transport chain occurs in the mitochondria.

Correct AnswerverifiedShow Answer

During glycolysis,to "activate" glucose two molecules of ____________ are required.

Correct AnswerverifiedShow Answer

When NAD+ picks up two electrons and a proton in reactions of the Krebs cycle to form NADH,the NAD+ is

Correct AnswerverifiedShow Answer

Only a small amount of ATP is produced during glycolysis because most of the energy stored in a glucose molecule remains in the bonds of

Correct AnswerverifiedShow Answer

An example of a poison that kills by interfering with ATP production is

Correct AnswerverifiedShow Answer

In eukaryotic cells,NADH and FADH2 are transported along the electron transport chain in the

Correct AnswerverifiedShow Answer

The net ATP production in glycolysis is only two because

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

In glycolysis and the Krebs cycle,electrons are removed from glucose and taken up by molecules like NAD⁺.In such a reaction,glucose is being _ and NAD⁺ is being .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

When NAD⁺ picks up two electrons and a proton in reactions of the Krebs cycle to form NADH,the NAD⁺ is

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In eukaryotic cells,NADH and FADH₂ are transported along the electron transport chain in the

Correct Answer
verified

Correct Answer
verified