Question 1

Under what environmental conditions do yeast carry out fermentation?

Accepted Answer

A) Absence of oxygen 
B) High temperature 
C) Low pH 
D) High osmotic pressure 
E) All of the choices are correct 
A) Absence of oxygen 
B) High temperature 
C) Low pH 
D) High osmotic pressure 
E) All of the choices are correct A

Question 2

What is the fate of the NADH and FADH2 made during the first stages of aerobic respiration?

Accepted Answer

A) They carry electrons to the electron transport chain 
B) They carry electrons to water 
C) They carry electrons to acetylaldehyde producing ethanol or lactic acid 
D) They carry them to the Calvin cycle to reduce carbon dioxide 
E) They carry electrons to the Krebs cycle 
A) They carry electrons to the electron transport chain 
B) They carry electrons to water 
C) They carry electrons to acetylaldehyde producing ethanol or lactic acid 
D) They carry them to the Calvin cycle to reduce carbon dioxide 
E) They carry electrons to the Krebs cycle A

Question 3

_________ is an electron carrier similar to NADH.

Accepted Answer

FADH<sub>2</sub>

Question 4

In the process of glycolysis,glucose is cleaved into a pair of three-carbon ________ molecules.

Accepted Answer

A) lactate 
B) acetyl CoA 
C) pyruvate 
D) oxaloacetate 
E) alcohol 
A) lactate 
B) acetyl CoA 
C) pyruvate 
D) oxaloacetate 
E) alcohol

Question 5

Common end products of fermentation include __________ and _____.

Accepted Answer

The answer of Common end products of fermentation include __________...

Question 6

Electrons generated from the Krebs cycle go next to the

Accepted Answer

A) fermentation pathway. 
B) formation of alcohol. 
C) electron transport chain. 
D) fluid portion of the mitochondrion. 
A) fermentation pathway. 
B) formation of alcohol. 
C) electron transport chain. 
D) fluid portion of the mitochondrion.

Question 7

When substrate level phosphorylation occurs it means that

Accepted Answer

A) NAD is converted into NADH. 
B) ATP is converted into ADP plus a phosphate group. 
C) ADP is converted into ATP by addition of a phosphate group. 
D) AMP is converted into NAD by adding a phosphate group. 
E) NADH is converted into NAD + H. 
A) NAD is converted into NADH. 
B) ATP is converted into ADP plus a phosphate group. 
C) ADP is converted into ATP by addition of a phosphate group. 
D) AMP is converted into NAD by adding a phosphate group. 
E) NADH is converted into NAD + H.

Question 8

Anaerobic respiration occurs in environments without oxygen.In doing so,some organisms have evolved mechanisms to produce ATP by using other _______ acceptors.

Accepted Answer

A) proton 
B) electron 
C) NADPH 
D) phosphate group 
E) fermentation 
A) proton 
B) electron 
C) NADPH 
D) phosphate group 
E) fermentation

Question 9

Which of these is an electron carrier molecule?

Accepted Answer

A) NAD+ 
B) ATP 
C) Adenylate kinase 
D) Carbonic acid 
A) NAD+ 
B) ATP 
C) Adenylate kinase 
D) Carbonic acid

Question 10

The internal compartment of the mitochondria is the _______.

Accepted Answer

The answer of The internal compartment of the mitochondria is...

Question 11

Most of the carbon dioxide that is made during aerobic respiration is from

Accepted Answer

A) glycolysis. 
B) the Krebs cycle. 
C) the electron transport chain. 
D) the Calvin cycle. 
E) chemiosmosis. 
A) glycolysis. 
B) the Krebs cycle. 
C) the electron transport chain. 
D) the Calvin cycle. 
E) chemiosmosis.

Question 12

During fermentation,_______ is recycled by transferring its electrons to a molecule other than oxygen.

Accepted Answer

The answer of During fermentation,_______ is recycled by transferring its...

Question 13

When a high-energy phosphate group is transferred from a substrate to ADP it is called ____________.

Accepted Answer

substrate-

Question 14

What is produced when wine is made?

Accepted Answer

A) CO2,ATP and ethyl alcohol 
B) Oxygen,ADP and ethyl alcohol 
C) Water,hydrogen gas,and ethyl alcohol 
D) Lactate and ethyl alcohol 
E) Ethyl alcohol and water 
A) CO2,ATP and ethyl alcohol 
B) Oxygen,ADP and ethyl alcohol 
C) Water,hydrogen gas,and ethyl alcohol 
D) Lactate and ethyl alcohol 
E) Ethyl alcohol and water

Question 15

The second stage of cellular respiration,_____________,takes place only in the mitochondria.

Accepted Answer

The answer of The second stage of cellular respiration,_____________,takes place...

Question 16

The Krebs cycle occurs in the mitochondria.There are nine biochemical reactions involved in the Krebs cycle and they are highly ordered.Select the correct order from the following choices.Note these are abbreviated and do not show NAD,ADP,ATP,FAD,or water.

Accepted Answer

A) Acetyl - CoA joins the Krebs cycle and unites with oxaloacetate forming citrate which forms beta-ketoglutarate which forms succinyl - CoA which forms succinate which forms fumarate which forms malate which forms oxaloacetate 
B) Acetyl - CoA joins the Krebs cycle and unites with oxaloacetate forming citrate which forms alpha-ketoglutarate which forms succinyl - CoA which forms succinate which forms malate which forms fumarate which forms oxaloacetate 
C) Acetyl - CoA joins the Krebs cycle and unites with oxaloacetate which forms alpha-ketoglutarate forming citrate which forms succinyl - CoA which forms succinate which forms fumarate which forms malate which forms oxaloacetate 
D) Acetyl - CoA joins the Krebs cycle and unites with oxaloacetate forming citrate which forms isocitrate which forms alpha-ketoglutarate which forms succinyl - CoA which forms succinate which forms fumarate which forms malate which forms oxaloacetate 
A) Acetyl - CoA joins the Krebs cycle and unites with oxaloacetate forming citrate which forms beta-ketoglutarate which forms succinyl - CoA which forms succinate which forms fumarate which forms malate which forms oxaloacetate 
B) Acetyl - CoA joins the Krebs cycle and unites with oxaloacetate forming citrate which forms alpha-ketoglutarate which forms succinyl - CoA which forms succinate which forms malate which forms fumarate which forms oxaloacetate 
C) Acetyl - CoA joins the Krebs cycle and unites with oxaloacetate which forms alpha-ketoglutarate forming citrate which forms succinyl - CoA which forms succinate which forms fumarate which forms malate which forms oxaloacetate 
D) Acetyl - CoA joins the Krebs cycle and unites with oxaloacetate forming citrate which forms isocitrate which forms alpha-ketoglutarate which forms succinyl - CoA which forms succinate which forms fumarate which forms malate which forms oxaloacetate

Question 17

Select the correct sequence concerning glucose catabolism.

Accepted Answer

A) glycolysis - pyruvate - acetyl - CoA - electron transport chain - Krebs cycle 
B) glycolysis - pyruvate - acetyl - CoA - Krebs cycle - electron transport chain 
C) glycolysis - acetyl - CoA - pyruvate - electron transport chain - Krebs cycle 
D) glycolysis - acetyl - CoA - pyruvate - Krebs cycle - electron transport chain 
A) glycolysis - pyruvate - acetyl - CoA - electron transport chain - Krebs cycle 
B) glycolysis - pyruvate - acetyl - CoA - Krebs cycle - electron transport chain 
C) glycolysis - acetyl - CoA - pyruvate - electron transport chain - Krebs cycle 
D) glycolysis - acetyl - CoA - pyruvate - Krebs cycle - electron transport chain

Question 18

When FAD and NAD gain electrons and hydrogens during glycolysis and the Krebs cycle,they are said to be _________.

Accepted Answer

The answer of When FAD and NAD gain electrons and...

Question 19

Which of the following statements accurately reflects the process of glycolysis?

Accepted Answer

A) Glycolysis uses molecular oxygen;however,it occurs in anaerobic environments 
B) Glycolysis uses molecular oxygen and occurs in aerobic environments 
C) Glycolysis uses no molecular oxygen and occurs in the mitochondria 
D) Glycolysis uses no molecular oxygen;however,it can occur in aerobic environments 
A) Glycolysis uses molecular oxygen;however,it occurs in anaerobic environments 
B) Glycolysis uses molecular oxygen and occurs in aerobic environments 
C) Glycolysis uses no molecular oxygen and occurs in the mitochondria 
D) Glycolysis uses no molecular oxygen;however,it can occur in aerobic environments

Question 20

Describe how adding a phosphate to ATP or removing a phosphate group from ATP stores or releases energy.

Accepted Answer

Energy is stored in the high-e

Exam 7: How Cells Harvest Energy From Food

Under what environmental conditions do yeast carry out fermentation?

What is the fate of the NADH and FADH2 made during the first stages of aerobic respiration?

_________ is an electron carrier similar to NADH.

In the process of glycolysis,glucose is cleaved into a pair of three-carbon ________ molecules.

Common end products of fermentation include __________ and _____.

Electrons generated from the Krebs cycle go next to the

When substrate level phosphorylation occurs it means that

Anaerobic respiration occurs in environments without oxygen.In doing so,some organisms have evolved mechanisms to produce ATP by using other _______ acceptors.

Which of these is an electron carrier molecule?

The internal compartment of the mitochondria is the _______.

Most of the carbon dioxide that is made during aerobic respiration is from

During fermentation,_______ is recycled by transferring its electrons to a molecule other than oxygen.

When a high-energy phosphate group is transferred from a substrate to ADP it is called ____________.

What is produced when wine is made?

The second stage of cellular respiration,_____________,takes place only in the mitochondria.

The Krebs cycle occurs in the mitochondria.There are nine biochemical reactions involved in the Krebs cycle and they are highly ordered.Select the correct order from the following choices.Note these are abbreviated and do not show NAD,ADP,ATP,FAD,or water.

Select the correct sequence concerning glucose catabolism.

When FAD and NAD gain electrons and hydrogens during glycolysis and the Krebs cycle,they are said to be _________.

Which of the following statements accurately reflects the process of glycolysis?

Describe how adding a phosphate to ATP or removing a phosphate group from ATP stores or releases energy.

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What is the fate of the NADH and FADH₂ made during the first stages of aerobic respiration?

Common end products of fermentation include ______ and _.