Question 1

The enzymes that catalyze the dark reactions of photosynthesis are located in the ________________ of the chloroplasts.

Accepted Answer

The answer of The enzymes that catalyze the dark reactions...

Question 2

In the Calvin cycle, 3-phosphoglycerate is converted into which hexose phosphate?

Accepted Answer

A)  glucose 1-phosphate 
B)  glucose 6-phosphate 
C)  fructose 6-phosphate 
D)  All of the above. 
E)  None of the above. 
A)  glucose 1-phosphate 
B)  glucose 6-phosphate 
C)  fructose 6-phosphate 
D)  All of the above. 
E)  None of the above.

Question 3

Explain how the relationship of the mesophyll cell and the bundle-sheath cell help to regulate the Calvin cycle.

Accepted Answer

The enzyme rubisco is inefficient and re

Question 4

What is the energy cost of the C4 pathway?

Accepted Answer

A)  30 molecules of ATP are used per hexose molecule made. 
B)  18 molecules of ATP are used per hexose molecule made. 
C)  30 molecules of NADPH are used per hexose molecule made. 
D)  18 molecules of ATP and 12 of NADPH are used per hexose molecule made. 
E)  None of the above. 
A)  30 molecules of ATP are used per hexose molecule made. 
B)  18 molecules of ATP are used per hexose molecule made. 
C)  30 molecules of NADPH are used per hexose molecule made. 
D)  18 molecules of ATP and 12 of NADPH are used per hexose molecule made. 
E)  None of the above.

Question 5

What is the basic difference between C4 and C3 plants?

Accepted Answer

C3 plants comprise the majority of plant

Question 6

Which form of thioredoxin activates certain Calvin cycle enzymes?

Accepted Answer

A)  reduced 
B)  oxidized 
C)  dimeric 
D)  A and C 
E)  B and C 
A)  reduced 
B)  oxidized 
C)  dimeric 
D)  A and C 
E)  B and C

Question 7

________ rounds of the Calvin cycle are required for the production of hexose.

Accepted Answer

A)  1 
B)  3 
C)  6 
D)  12 
E)  9 
A)  1 
B)  3 
C)  6 
D)  12 
E)  9

Question 8

Choose the correct answer from the list below. Not all of the answers will be used.
-____________: The pathway that ensures that sufficient amounts of CO2 are available to minimize wasteful photorespiration.

Accepted Answer

A) rubisco 
B) transketolase 
C) crassulacean acid metabolism 
D) autotrophs 
E) C6
F)pyruvate-Pi dikinase
G)hexose monophosphate pool
H)heterotrophs
I)glycolysis
J)C4
K)sucrose
L)phosphoglycerate 
A) rubisco 
B) transketolase 
C) crassulacean acid metabolism 
D) autotrophs 
E) C6
F)pyruvate-Pi dikinase
G)hexose monophosphate pool
H)heterotrophs
I)glycolysis
J)C4
K)sucrose
L)phosphoglycerate

Exam 23: The Calvin Cycle

The enzymes that catalyze the dark reactions of photosynthesis are located in the ________________ of the chloroplasts.

In the Calvin cycle, 3-phosphoglycerate is converted into which hexose phosphate?

Explain how the relationship of the mesophyll cell and the bundle-sheath cell help to regulate the Calvin cycle.

What is the energy cost of the C4 pathway?

What is the basic difference between C4 and C3 plants?

Which form of thioredoxin activates certain Calvin cycle enzymes?

________ rounds of the Calvin cycle are required for the production of hexose.

Choose the correct answer from the list below. Not all of the answers will be used. -____________: The pathway that ensures that sufficient amounts of CO2 are available to minimize wasteful photorespiration.

Biochemistry and the Unity of Life

Water, Weak Bonds, and the Generation of Order Out of Chaos

Amino Acids

Protein Three-Dimensional Structure

Techniques in Protein Biochemistry

Basic Concepts of Enzyme Action

Kinetics and Regulation

Mechanisms and Inhibitors

Hemoglobin: an Allosteric Protein

Carbohydrates

Lipids

Membrane Structure and Function

Signal Transduction Pathways

Digestion: Turning a Meal Into Cellular Biochemicals

Metabolism: Basic Concepts and Design

Glycolysis

Gluconeogenesis

Preparation for the Cycle

Harvesting Electrons From the Cycle

The Electron Transport Chain

The Proton-Motive Force

The Light Reactions

Glycogen Degradation

Glycogen Synthesis

The Pentose Phosphate Pathway

Fatty Acid Degredation

Fatty Acid Synthesis

Lipid Synthesis

Amino Acid Degradation and the Urea Cycle

Amino Acids Synthesis

Nucleotide Metabolism

The Structure of Informational Macromolecules: Dna and Rna

DNA Replication

DNA Repair and Recombination

RNA Synthesis and Regulation in Prokaryotes

Gene Expression in Eukaryotes

RNA Processing in Eukaryotes

The Genetic Code

The Mechanism of Protein Synthesis

Recombinant DNA Techniques

Filters

What is the basic difference between C₄ and C₃plants?

Choose the correct answer from the list below. Not all of the answers will be used. -____________: The pathway that ensures that sufficient amounts of CO₂ are available to minimize wasteful photorespiration.