Question 1

The Calvin cycle can occur

Accepted Answer

A)  in the absence of CO2. 
B)  only in the presence of light. 
C)  in the absence of light. 
D)  only in the absence of oxygen. 
A)  in the absence of CO2. 
B)  only in the presence of light. 
C)  in the absence of light. 
D)  only in the absence of oxygen. C

Question 2

Synthesis of glucose from CO2 in the Calvin cycle requires energy input. What are the sources of energy for the Calvin cycle?

Accepted Answer

ATP and NADPH

Question 3

The electron carrier that transports electrons from cytochrome bf to photosystem I where NADP+ is reduced to NADPH is

Accepted Answer

A)  Cytochrome c. 
B)  plastocyanin. 
C)  plastoquinone. 
D)  QA. 
A)  Cytochrome c. 
B)  plastocyanin. 
C)  plastoquinone. 
D)  QA. B

Question 4

For humans, _______ essential amino acids must be provided by the diet.

Accepted Answer

A)  2 
B)  4 
C)  9 
D)  18 
A)  2 
B)  4 
C)  9 
D)  18

Question 5

The electron transport chain consists of four complexes, I through IV.

Accepted Answer

A) True 
 B)False

Question 6

The most energetically favorable reactions in glycolysis are catalyzed in reverse in gluconeogenesis by

Accepted Answer

A)  shifting their equilibrium. 
B)  the glycolytic enzymes using ATP. 
C)  the use of different enzymes coupled with energy from ATP or NADH. 
D)  accumulation of high substrate concentrations. 
A)  shifting their equilibrium. 
B)  the glycolytic enzymes using ATP. 
C)  the use of different enzymes coupled with energy from ATP or NADH. 
D)  accumulation of high substrate concentrations.

Question 7

ATP serves to transfer energy from energy-producing to energy-requiring reactions.

Accepted Answer

A) True 
 B)False

Question 8

The ATP synthases of mitochondria and chloroplasts are examples of _______ proteins in which polypeptide rotation provides a mechanical coupling to ATP synthesis.

Accepted Answer

A)  symport 
B)  Na+-K+ ATPase 
C)  proton pump 
D)  motor 
A)  symport 
B)  Na+-K+ ATPase 
C)  proton pump 
D)  motor

Question 9

Photosynthesis takes place in two stages, referred to as

Accepted Answer

A)  light reactions and dark reactions. 
B)  oxygen requiring and oxygen releasing reactions. 
C)  H2O splitting and sugar synthesizing reactions. 
D)  chlorophyll dependent and independent reactions. 
A)  light reactions and dark reactions. 
B)  oxygen requiring and oxygen releasing reactions. 
C)  H2O splitting and sugar synthesizing reactions. 
D)  chlorophyll dependent and independent reactions.

Question 10

The citric acid cycle consists of the oxidation of _______ to produce _______.

Accepted Answer

A)  pyruvate; CO2, NADH, and FADH2 
B)  acetyl CoA; CO2, NADH, and FADH2 
C)  pyruvate; CO2 
D)  acetate; CO2 
A)  pyruvate; CO2, NADH, and FADH2 
B)  acetyl CoA; CO2, NADH, and FADH2 
C)  pyruvate; CO2 
D)  acetate; CO2

Question 11

Animal cells can synthesize glucose (gluconeogenesis) from all of the following except

Accepted Answer

A)  lactate. 
B)  amino acids. 
C)  glycerol. 
D)  fatty acids. 
A)  lactate. 
B)  amino acids. 
C)  glycerol. 
D)  fatty acids.

Question 12

Glycolysis produces four molecules of ATP from each molecule of fructose-1,6-bisphosphate because

Accepted Answer

A)  two molecules of ATP are required to convert glucose to fructose-1,6-bisphosphate. 
B)  fructose-1,6-bisphosphate is converted into two molecules of 1,3-bisphosphoglycerate, each of which produces two ATPs when metabolized to pyruvate. 
C)  fructose-1,6-bisphosphate is converted into four molecules of 1,3-bisphosphoglycerate, each of which produces one ATP when metabolized to pyruvate. 
D)  Both a and b 
A)  two molecules of ATP are required to convert glucose to fructose-1,6-bisphosphate. 
B)  fructose-1,6-bisphosphate is converted into two molecules of 1,3-bisphosphoglycerate, each of which produces two ATPs when metabolized to pyruvate. 
C)  fructose-1,6-bisphosphate is converted into four molecules of 1,3-bisphosphoglycerate, each of which produces one ATP when metabolized to pyruvate. 
D)  Both a and b

Question 13

The carbon skeletons of amino acids are derived from

Accepted Answer

A)  the Calvin cycle. 
B)  gluconeogenesis. 
C)  intermediates in glycolysis and the citric acid cycle. 
D)  photosynthesis. 
A)  the Calvin cycle. 
B)  gluconeogenesis. 
C)  intermediates in glycolysis and the citric acid cycle. 
D)  photosynthesis.

Question 14

In anaerobic cells, the oxidation of glucose yields _______ molecules of ATP per molecule of glucose.

Accepted Answer

The answer of In anaerobic cells, the oxidation of glucose...

Question 15

The oxidation of NADH via the electron transport chain is a highly efficient process with little or no energy loss to heat.

Accepted Answer

A) True 
 B)False

Question 16

Light is captured by _______ different photosystems associated with the thylakoid membranes of chloroplasts.

Accepted Answer

A)  two 
B)  three 
C)  five 
D)  ten 
A)  two 
B)  three 
C)  five 
D)  ten

Question 17

Peter Mitchell received the Nobel Prize in 1978 for his revolutionary hypothesis of oxidative phosphorylation, which is called the _______ hypothesis.

Accepted Answer

A)  electron transport 
B)  substrate-level phosphorylation 
C)  endosymbiotic 
D)  chemiosmotic 
A)  electron transport 
B)  substrate-level phosphorylation 
C)  endosymbiotic 
D)  chemiosmotic

Question 18

The ATP synthase in chloroplast thylakoid membranes is oriented in the opposite direction within the membrane to that of the mitochondrial ATP synthase. How can the chloroplast synthase still be functional in ATP production?

Accepted Answer

In chloroplasts, the proton gr

Question 19

In chloroplasts, the proton gradient that drives ATP production is established across the _______ membrane.

Accepted Answer

The answer of In chloroplasts, the proton gradient that drives...

Question 20

The citric acid cycle involves the addition of two carbons from the compound _______ to the four-carbon oxaloacetate to produce the six-carbon compound _______.

Accepted Answer

acetyl CoA

The Calvin cycle can occur

Synthesis of glucose from CO₂ in the Calvin cycle requires energy input. What are the sources of energy for the Calvin cycle?

The electron carrier that transports electrons from cytochrome bf to photosystem I where NADP⁺ is reduced to NADPH is

For humans, _______ essential amino acids must be provided by the diet.

The electron transport chain consists of four complexes, I through IV.

The most energetically favorable reactions in glycolysis are catalyzed in reverse in gluconeogenesis by

ATP serves to transfer energy from energy-producing to energy-requiring reactions.

The ATP synthases of mitochondria and chloroplasts are examples of _______ proteins in which polypeptide rotation provides a mechanical coupling to ATP synthesis.

Photosynthesis takes place in two stages, referred to as

The citric acid cycle consists of the oxidation of _ to produce _.

Animal cells can synthesize glucose (gluconeogenesis) from all of the following except

Glycolysis produces four molecules of ATP from each molecule of fructose-1,6-bisphosphate because

The carbon skeletons of amino acids are derived from

In anaerobic cells, the oxidation of glucose yields _______ molecules of ATP per molecule of glucose.

The oxidation of NADH via the electron transport chain is a highly efficient process with little or no energy loss to heat.

Light is captured by _______ different photosystems associated with the thylakoid membranes of chloroplasts.

Peter Mitchell received the Nobel Prize in 1978 for his revolutionary hypothesis of oxidative phosphorylation, which is called the _______ hypothesis.

The ATP synthase in chloroplast thylakoid membranes is oriented in the opposite direction within the membrane to that of the mitochondrial ATP synthase. How can the chloroplast synthase still be functional in ATP production?

In chloroplasts, the proton gradient that drives ATP production is established across the _______ membrane.

The citric acid cycle involves the addition of two carbons from the compound _ to the four-carbon oxaloacetate to produce the six-carbon compound _.

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

The Calvin cycle can occur

Synthesis of glucose from CO2 in the Calvin cycle requires energy input. What are the sources of energy for the Calvin cycle?

The electron carrier that transports electrons from cytochrome bf to photosystem I where NADP+ is reduced to NADPH is

For humans, _______ essential amino acids must be provided by the diet.

The electron transport chain consists of four complexes, I through IV.

The most energetically favorable reactions in glycolysis are catalyzed in reverse in gluconeogenesis by

ATP serves to transfer energy from energy-producing to energy-requiring reactions.

The ATP synthases of mitochondria and chloroplasts are examples of _______ proteins in which polypeptide rotation provides a mechanical coupling to ATP synthesis.

Photosynthesis takes place in two stages, referred to as

The citric acid cycle consists of the oxidation of _______ to produce _______.

Animal cells can synthesize glucose (gluconeogenesis) from all of the following except

Glycolysis produces four molecules of ATP from each molecule of fructose-1,6-bisphosphate because

The carbon skeletons of amino acids are derived from

In anaerobic cells, the oxidation of glucose yields _______ molecules of ATP per molecule of glucose.

The oxidation of NADH via the electron transport chain is a highly efficient process with little or no energy loss to heat.

Light is captured by _______ different photosystems associated with the thylakoid membranes of chloroplasts.

Peter Mitchell received the Nobel Prize in 1978 for his revolutionary hypothesis of oxidative phosphorylation, which is called the _______ hypothesis.

The ATP synthase in chloroplast thylakoid membranes is oriented in the opposite direction within the membrane to that of the mitochondrial ATP synthase. How can the chloroplast synthase still be functional in ATP production?

In chloroplasts, the proton gradient that drives ATP production is established across the _______ membrane.

The citric acid cycle involves the addition of two carbons from the compound _______ to the four-carbon oxaloacetate to produce the six-carbon compound _______.

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

Synthesis of glucose from CO₂ in the Calvin cycle requires energy input. What are the sources of energy for the Calvin cycle?

The electron carrier that transports electrons from cytochrome bf to photosystem I where NADP⁺ is reduced to NADPH is

The citric acid cycle consists of the oxidation of _ to produce _.

The citric acid cycle involves the addition of two carbons from the compound _ to the four-carbon oxaloacetate to produce the six-carbon compound _.