Question 1

Which of the following is the major glycolytic pathway used by plants and animals?

Accepted Answer

A)  Tricarboxylic acid cycle
B)  Embden-Meyerhof pathway
C)  Entner-Doudoroff pathway
D)  Pentose phosphate pathwayE) None of the above
F) A) and B)

Question 2

When cells of a facultative anaerobe such as Paracoccus denitrificans are growing under anaerobic conditions and using nitrate as the terminal electron acceptor,______________ nitrate reduction is occurring.

Accepted Answer

The answer of When cells of a facultative anaerobe such...

Question 3

After glycolysis,pyruvate is oxidized to one CO2 and the two-carbon molecule acetyl-CoA by a multienzyme system called the ________ ________ complex.

Accepted Answer

pyruvate d...

Question 4

Which of the following produces the most ATP during aerobic respiration?

Accepted Answer

A)  Glycolysis
B)  TCA cycle
C)  Fermentation
D)  Electron transport chain and chemiosmosis
E)  Susbstrate level phosphorylationF) A) and B)
G) A) and C)

Question 5

Chlorophyll a and chlorophyll b as well as the accessory pigments are arranged in an antenna array with a reaction center chlorophyll.These antenna arrays with the reaction center chlorophyll are known as

Accepted Answer

A)  reaction center systems.
B)  photomembrane systems.
C)  photosystems.
D)  Calvin systems.E) B) and D)
F) A) and D)

Question 6

Nitrification of ammonia occurs when ammonia is first converted to nitrite and then is converted to nitrate by the nitrogen-fixing bacteria.

Accepted Answer

A) True 
 B)False

Question 7

How does the phosphorylation of galactose differ from the phosphorylation of glucose,mannose,and fructose prior to catabolism?

Accepted Answer

A)  Phosphorylation of galactose requires NADPH to phosphorylate galactose-1-phosphate
B)  Phosphorylation of galactose requires PEP (phosphoenolpyruvate) to phosphorylate galactose-1-phosphate
C)  Phosphorylation of galactose requires ATP to phosphorylate galactose-1-phosphate
D)  Phosphorylation of galactose requires TTP to phosphorylate galactose-1-phosphate
E)  Phosphorylation of galactose requires UTP to phosphorylate galactose-1-phosphateF) B) and D)
G) C) and E) E

Question 8

The terms Krebs cycle,tricarboxylic acid cycle,and citric acid cycle all refer to the same process.

Accepted Answer

A) True 
 B)False  True

Question 9

The pyruvate dehydrogenase complex oxidizes and cleaves pyruvate to form one CO2 and

Accepted Answer

A)  lactate.
B)  isocitric acid.
C)  acetyl-CoA.
D)  succinyl-CoA.E) All of the above
F) C) and D)

Question 10

Organisms that form lactate,ethanol,and CO2 as end products of glucose metabolism are called __________ fermenters.

Accepted Answer

Question 11

Fermentation involves the use of pyruvate and/or other organic molecules as electron acceptors.

Accepted Answer

A) True 
 B)False

Question 12

How many molecules of NADPH are needed to reduce one molecule of carbon dioxide to carbohydrate by oxygenic phototrophs during the dark reactions of photosynthesis?

Accepted Answer

A)  2
B)  3
C)  4
D)  10-12E) A) and D)
F) B) and C)

Question 13

Prokaryotes may use several different terminal oxidases for the electron transport system.

Accepted Answer

A) True 
 B)False

Question 14

Complete catabolism of lactose requires

Accepted Answer

A)  ATP,NAD,and appropriate enzymes.
B)  ATP,UTP,NAD,and appropriate enzymes.
C)  NAD and appropriate enzymes.D) A) and C)
E) A) and B)

Question 15

______________ refers to the removal of an amino group from an amino acid.One mechanism for this removal is _____________,in which the amino group is transferred to an acceptor molecule.

Accepted Answer

A)  Deamination; hydrolysis
B)  Deamination; transamination
C)  Transamination; deamination
D)  Hydrolysis; transaminationE) None of the above
F) A) and B)

Question 16

Photosynthetic electron transport in cyanobacteria takes place

Accepted Answer

A)  on the plasma membrane.
B)  in the chloroplast.
C)  in the cytoplasm.
D)  on the thylakoid membranes.E) A) and B)
F) C) and D)

Question 17

An organism can take advantage of energy available from both light and from organic molecules and exhibit both phototrophy and chemoorganotrophy.

Accepted Answer

A) True 
 B)False

Question 18

During glycolysis,ATP is produced when 1,3 bisphosphoglycerate transfers a phosphate to ADP forming ATP.This is an example of

Accepted Answer

A)  photophosphorylation.
B)  oxidative phosphorylation.
C)  substrate-level phosphorylation.
D)  glycolytic phosphorylation.E) A) and B)
F) A) and C) C

Question 19

Although most metabolic reactions are freely reversible,a few irreversible catabolic steps are bypassed during biosynthesis with special enzymes that catalyze the reverse reaction in order to allow for independent regulation of catabolic and anabolic pathways.

Accepted Answer

A) True 
 B)False

Question 20

__________ pathways are those that function both catabolically and anabolically.

Accepted Answer

The answer of __________ pathways are those that function both...

Exam 11: Catabolism: Energy Release and Conservation

Which of the following is the major glycolytic pathway used by plants and animals?

Correct AnswerverifiedShow Answer

When cells of a facultative anaerobe such as Paracoccus denitrificans are growing under anaerobic conditions and using nitrate as the terminal electron acceptor,______________ nitrate reduction is occurring.

Correct AnswerverifiedShow Answer

After glycolysis,pyruvate is oxidized to one CO2 and the two-carbon molecule acetyl-CoA by a multienzyme system called the ________ ________ complex.

Correct Answerverifiedpyruvate d...View AnswerShow Answer

Which of the following produces the most ATP during aerobic respiration?

Correct AnswerverifiedShow Answer

Chlorophyll a and chlorophyll b as well as the accessory pigments are arranged in an antenna array with a reaction center chlorophyll.These antenna arrays with the reaction center chlorophyll are known as

Correct AnswerverifiedShow Answer

Nitrification of ammonia occurs when ammonia is first converted to nitrite and then is converted to nitrate by the nitrogen-fixing bacteria.

Correct AnswerverifiedShow Answer

How does the phosphorylation of galactose differ from the phosphorylation of glucose,mannose,and fructose prior to catabolism?

Correct AnswerverifiedE

The terms Krebs cycle,tricarboxylic acid cycle,and citric acid cycle all refer to the same process.

Correct AnswerverifiedTrue

The pyruvate dehydrogenase complex oxidizes and cleaves pyruvate to form one CO2 and

Correct AnswerverifiedShow Answer

Organisms that form lactate,ethanol,and CO2 as end products of glucose metabolism are called __________ fermenters.

Correct AnswerverifiedShow Answer

Fermentation involves the use of pyruvate and/or other organic molecules as electron acceptors.

Correct AnswerverifiedShow Answer

How many molecules of NADPH are needed to reduce one molecule of carbon dioxide to carbohydrate by oxygenic phototrophs during the dark reactions of photosynthesis?

Correct AnswerverifiedShow Answer

Prokaryotes may use several different terminal oxidases for the electron transport system.

Correct AnswerverifiedShow Answer

Complete catabolism of lactose requires

Correct AnswerverifiedShow Answer

______________ refers to the removal of an amino group from an amino acid.One mechanism for this removal is _____________,in which the amino group is transferred to an acceptor molecule.

Correct AnswerverifiedShow Answer

Photosynthetic electron transport in cyanobacteria takes place

Correct AnswerverifiedShow Answer

An organism can take advantage of energy available from both light and from organic molecules and exhibit both phototrophy and chemoorganotrophy.

Correct AnswerverifiedShow Answer

During glycolysis,ATP is produced when 1,3 bisphosphoglycerate transfers a phosphate to ADP forming ATP.This is an example of

Correct AnswerverifiedC

Although most metabolic reactions are freely reversible,a few irreversible catabolic steps are bypassed during biosynthesis with special enzymes that catalyze the reverse reaction in order to allow for independent regulation of catabolic and anabolic pathways.

Correct AnswerverifiedShow Answer

__________ pathways are those that function both catabolically and anabolically.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

After glycolysis,pyruvate is oxidized to one CO₂ and the two-carbon molecule acetyl-CoA by a multienzyme system called the complex.

Correct Answer
verified
pyruvate d...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
E

Correct Answer
verified
True

The pyruvate dehydrogenase complex oxidizes and cleaves pyruvate to form one CO₂ and

Correct Answer
verified

Organisms that form lactate,ethanol,and CO₂ as end products of glucose metabolism are called __________ fermenters.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

__ refers to the removal of an amino group from an amino acid.One mechanism for this removal is _,in which the amino group is transferred to an acceptor molecule.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified