Question 1

Under anaerobic conditions, NADH produced by glycolysis is recycled by a reaction that produces NAD+ and

Accepted Answer

A)  ethanol. 
B)  lactate. 
C)  pyruvate. 
D)  ethanol or lactate. 
A)  ethanol. 
B)  lactate. 
C)  pyruvate. 
D)  ethanol or lactate.

Question 2

The $\Delta$ G°' for the transfer of two electrons from NADH to O2 through the electron transport chain is _______ kcal/mol.

Accepted Answer

A)  +52.5 
B)  -52.5 
C)  +7.5 
D)  -7.5 
A)  +52.5 
B)  -52.5 
C)  +7.5 
D)  -7.5

Question 3

In aerobic cells, the complete oxidation of glucose via glycolysis and the citric acid cycle yields between _______ and _______ molecules of ATP per molecule of glucose, depending on how the electrons from NADH enter the mitochondria.

Accepted Answer

The answer of In aerobic cells, the complete oxidation of...

Question 4

Under aerobic conditions, the NADH formed during glycolysis

Accepted Answer

A)  has no metabolic advantage to the cell. 
B)  is a waste product of glycolysis. 
C)  provides additional energy by donating its electrons to the electron transport chain. 
D)  converts acetaldehyde to ethanol and hence serves as the basis of many fermentation processes. 
A)  has no metabolic advantage to the cell. 
B)  is a waste product of glycolysis. 
C)  provides additional energy by donating its electrons to the electron transport chain. 
D)  converts acetaldehyde to ethanol and hence serves as the basis of many fermentation processes.

Question 5

During oxidation of a fatty acid, the fatty acid is joined to the molecule _______ and is broken down by stepwise removal of _______-carbon units as part of the molecule _______, which can then enter the citric acid cycle to be metabolized.

Accepted Answer

coenzyme A

Question 6

Plastoquinone (PQ) can carry electrons from both photosystems I and II to cytochrome bf.

Accepted Answer

A) True 
 B)False

Question 7

The inner mitochondrial membrane contains proteins that

Accepted Answer

A)  synthesize ATP. 
B)  pump protons. 
C)  transport pyruvate and fatty acids. 
D)  All of the above 
A)  synthesize ATP. 
B)  pump protons. 
C)  transport pyruvate and fatty acids. 
D)  All of the above

Question 8

Ammonia is incorporated into organic molecules primarily during the synthesis of the amino acids glutamate and glutamine.

Accepted Answer

A) True 
 B)False

Question 9

In glycolysis, the key control enzyme that is inhibited by excess ATP is

Accepted Answer

A)  hexokinase. 
B)  phosphofructokinase. 
C)  alcohol dehydrogenase. 
D)  fructose-1,6-bisphosphate. 
A)  hexokinase. 
B)  phosphofructokinase. 
C)  alcohol dehydrogenase. 
D)  fructose-1,6-bisphosphate.

Question 10

The Calvin cycle in plants, in which glucose is synthesized from CO2, is an example of a light reaction.

Accepted Answer

A) True 
 B)False

Question 11

Each photocenter in a chloroplast consists of hundreds of antenna pigment molecules that absorb light and transfer energy to a reaction center

Accepted Answer

A)  carotenoid. 
B)  chlorophyll. 
C)  cytochrome bf. 
D)  plastoquinone. 
A)  carotenoid. 
B)  chlorophyll. 
C)  cytochrome bf. 
D)  plastoquinone.

Question 12

ATP is produced in mitochondria by a process called _______.

Accepted Answer

oxidative

Question 13

Nucleotide chains are elongated in the 5'-to-3'direction. The 5' and 3'notations refer to the chemical positions on the

Accepted Answer

A)  base. 
B)  phosphate. 
C)  ribose or deoxyribose. 
D)  coenzyme that participates in polynucleotide biosynthesis. 
A)  base. 
B)  phosphate. 
C)  ribose or deoxyribose. 
D)  coenzyme that participates in polynucleotide biosynthesis.

Question 14

Under aerobic conditions, the end product of glycolysis is

Accepted Answer

A)  ethanol. 
B)  lactate. 
C)  phosphoenolpyruvate. 
D)  pyruvate. 
A)  ethanol. 
B)  lactate. 
C)  phosphoenolpyruvate. 
D)  pyruvate.

Question 15

Where in "typical" eukaryotic cells does glycolysis occur? Be specific if the process or event occurs in only one part of an organelle. If you are not sure, give the location of the enzymes that catalyze the process.

Accepted Answer

The answer of Where in "typical" eukaryotic cells does glycolysis...

Question 16

How does ATP synthesis in oxidative phosphorylation differ from ATP synthesis in glycolysis?

Accepted Answer

In oxidative phosphorylation, the proton

Question 17

In the process of protein synthesis, _______ serves as a template for translation.

Accepted Answer

The answer of In the process of protein synthesis, _______...

Question 18

The only complex in the mitochondrial electron transport chain that is not involved directly in the transport of protons is complex _______.

Accepted Answer

The answer of The only complex in the mitochondrial electron...

Question 19

The free-energy change of a reaction is determined by the

Accepted Answer

A)  intrinsic properties of reactants and products. 
B)  concentrations of reactants and products. 
C)  temperature of reactants and products. 
D)  All of the above 
A)  intrinsic properties of reactants and products. 
B)  concentrations of reactants and products. 
C)  temperature of reactants and products. 
D)  All of the above

Question 20

All organisms can use _______ as a nitrogen source.

Accepted Answer

A)  nitrate 
B)  atmospheric nitrogen 
C)  ammonia 
D)  nitrite 
A)  nitrate 
B)  atmospheric nitrogen 
C)  ammonia 
D)  nitrite

Under anaerobic conditions, NADH produced by glycolysis is recycled by a reaction that produces NAD⁺ and

The $\Delta$ G°' for the transfer of two electrons from NADH to O₂ through the electron transport chain is _______ kcal/mol.

In aerobic cells, the complete oxidation of glucose via glycolysis and the citric acid cycle yields between _ and _ molecules of ATP per molecule of glucose, depending on how the electrons from NADH enter the mitochondria.

Under aerobic conditions, the NADH formed during glycolysis

During oxidation of a fatty acid, the fatty acid is joined to the molecule ___ and is broken down by stepwise removal of _-carbon units as part of the molecule _____, which can then enter the citric acid cycle to be metabolized.

Plastoquinone (PQ) can carry electrons from both photosystems I and II to cytochrome bf.

The inner mitochondrial membrane contains proteins that

Ammonia is incorporated into organic molecules primarily during the synthesis of the amino acids glutamate and glutamine.

In glycolysis, the key control enzyme that is inhibited by excess ATP is

The Calvin cycle in plants, in which glucose is synthesized from CO₂, is an example of a light reaction.

Each photocenter in a chloroplast consists of hundreds of antenna pigment molecules that absorb light and transfer energy to a reaction center

ATP is produced in mitochondria by a process called _______.

Nucleotide chains are elongated in the 5'-to-3'direction. The 5' and 3'notations refer to the chemical positions on the

Under aerobic conditions, the end product of glycolysis is

Where in "typical" eukaryotic cells does glycolysis occur? Be specific if the process or event occurs in only one part of an organelle. If you are not sure, give the location of the enzymes that catalyze the process.

How does ATP synthesis in oxidative phosphorylation differ from ATP synthesis in glycolysis?

In the process of protein synthesis, _______ serves as a template for translation.

The only complex in the mitochondrial electron transport chain that is not involved directly in the transport of protons is complex _______.

The free-energy change of a reaction is determined by the

All organisms can use _______ as a nitrogen source.

An Overview of Cells and Cell Research

Molecules and Membranes

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

RNA Synthesis and Processing

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Protein Sorting and Transport

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

Filters

Exam 3: Bioenergetics and Metabolism

Under anaerobic conditions, NADH produced by glycolysis is recycled by a reaction that produces NAD+ and

The Δ\DeltaΔ G°' for the transfer of two electrons from NADH to O2 through the electron transport chain is _______ kcal/mol.

In aerobic cells, the complete oxidation of glucose via glycolysis and the citric acid cycle yields between _______ and _______ molecules of ATP per molecule of glucose, depending on how the electrons from NADH enter the mitochondria.

Under aerobic conditions, the NADH formed during glycolysis

During oxidation of a fatty acid, the fatty acid is joined to the molecule _______ and is broken down by stepwise removal of _______-carbon units as part of the molecule _______, which can then enter the citric acid cycle to be metabolized.

Plastoquinone (PQ) can carry electrons from both photosystems I and II to cytochrome bf.

The inner mitochondrial membrane contains proteins that

Ammonia is incorporated into organic molecules primarily during the synthesis of the amino acids glutamate and glutamine.

In glycolysis, the key control enzyme that is inhibited by excess ATP is

The Calvin cycle in plants, in which glucose is synthesized from CO2, is an example of a light reaction.

Each photocenter in a chloroplast consists of hundreds of antenna pigment molecules that absorb light and transfer energy to a reaction center

ATP is produced in mitochondria by a process called _______.

Nucleotide chains are elongated in the 5'-to-3'direction. The 5' and 3'notations refer to the chemical positions on the

Under aerobic conditions, the end product of glycolysis is

Where in "typical" eukaryotic cells does glycolysis occur? Be specific if the process or event occurs in only one part of an organelle. If you are not sure, give the location of the enzymes that catalyze the process.

How does ATP synthesis in oxidative phosphorylation differ from ATP synthesis in glycolysis?

In the process of protein synthesis, _______ serves as a template for translation.

The only complex in the mitochondrial electron transport chain that is not involved directly in the transport of protons is complex _______.

The free-energy change of a reaction is determined by the

All organisms can use _______ as a nitrogen source.

An Overview of Cells and Cell Research

Molecules and Membranes

Fundamentals of Molecular Biology

Genomics, Proteomics, and Systems Biology

Genes and Genomes

Replication, Maintenance, and Rearrangements of Genomic Dna

RNA Synthesis and Processing

Transcriptional Regulation and Epigenetics

Protein Synthesis, Processing, and Regulation

The Nucleus

Protein Sorting and Transport

Mitochondria, Chloroplasts, and Peroxisomes

The Cytoskeleton and Cell Movement

The Plasma Membrane

Cell Walls, the Extracellular Matrix, and Cell Interactions

Cell Signaling

The Cell Cycle

Cell Death and Cell Renewal

Cancer

Filters

Under anaerobic conditions, NADH produced by glycolysis is recycled by a reaction that produces NAD⁺ and

The $\Delta$ G°' for the transfer of two electrons from NADH to O₂ through the electron transport chain is _______ kcal/mol.

In aerobic cells, the complete oxidation of glucose via glycolysis and the citric acid cycle yields between _ and _ molecules of ATP per molecule of glucose, depending on how the electrons from NADH enter the mitochondria.

During oxidation of a fatty acid, the fatty acid is joined to the molecule ___ and is broken down by stepwise removal of _-carbon units as part of the molecule _____, which can then enter the citric acid cycle to be metabolized.

The Calvin cycle in plants, in which glucose is synthesized from CO₂, is an example of a light reaction.