(a) Interpretation: The data were most likely to be generated by the C 4 plant and C 3 plant should be determined. Concept introduction: When O 2 content is high in the atmosphere, the Rubisco enzyme(carbon-fixing enzyme of Calvin cycle) binds with O 2 instead of CO 2 . The O 2 binding initiates oxygenase reaction rather than carboxylase reaction. This process is called photorespiration.

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Answer 1

Question

Chapter 20, Problem 46P

Interpretation Introduction

(a)

Interpretation:

The data were most likely to be generated by the C₄ plant and C₃ plant should be determined.

Concept introduction:

When O₂content is high in the atmosphere, the Rubisco enzyme(carbon-fixing enzyme of Calvin cycle) binds with O₂ instead of CO₂. The O₂binding initiates oxygenase reaction rather than carboxylase reaction. This process is called photorespiration.

Interpretation Introduction

(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

Interpretation Introduction

(c)

Interpretation:

Why C₄ plants thrive at CO₂ concentrations that do not support the growth of C₃ plants should be explained.

Concept introduction:

C₃ plants have no specific adaptations to minimize photorespiration. But C₄ plants have a mechanism to reduce photorespiration. In C_4, cells light-dependent reactions and Calvin cycles occur in two different types of cell

Interpretation Introduction

(d)

Interpretation:

A possible explanation of why C₃ plants continue to increase photosynthetic activity at higher CO₂ concentrations, whereas C₄ plants reach a plateau should be suggested.

Concept introduction:

In C₄ plants, atmospheric CO₂ is first fixed in one type of cell as oxaloacetate and then converted to malate. Malate is then broken down to produce CO₂ in another type of cells. This CO₂ is then fixed to produce glucose via the Calvin cycle like C₃ plants.

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RADIANT ENERGY in 4. Which process is best illustrated by the diagram? A. Cellular respiration B. Digestion C. Fermentation D. Photosynthesis C,H O CHLOROPHYLL 6 H.0 out ENZYMES 12 H,0 in 60, out 6 CO, in 5. The most common leaf color would be green. Why do we only see green color? A. Chlorophyll absorbs all colors of light but it just shows the green color. B. Chlorophyll absorbs the green coloration thus it is what we can observe. C. Chlorophyll reflects the green color and absorbs all the other color. D. Chlorophyll releases the green coloration through the energy it absorbs. 6. ATP + H2O → ADP + Pi+ free energy + H* is the equation fro what process? C. Photosynthesis A. Hydrolysis B. Phosphorylation D. Respiration

Please help! Photosynthesis and Cell respiration: A. What should happen to the O2 levels in a closed container containing a plant during the day? why? B. And what happens to the O2 levels during the night (no light)? Why?

c) . solar photons. Describe two ways through which Photosystem I and Photosystem II optimize the capture of d) good oxidant and a good reductant at the same time. With a simple frontier orbital diagram, explain why the photo-excited P680 pigment is both a

Answer 2

Question

Chapter 20, Problem 46P

Interpretation Introduction

(a)

Interpretation:

The data were most likely to be generated by the C₄ plant and C₃ plant should be determined.

Concept introduction:

When O₂content is high in the atmosphere, the Rubisco enzyme(carbon-fixing enzyme of Calvin cycle) binds with O₂ instead of CO₂. The O₂binding initiates oxygenase reaction rather than carboxylase reaction. This process is called photorespiration.

Interpretation Introduction

(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

Interpretation Introduction

(c)

Interpretation:

Why C₄ plants thrive at CO₂ concentrations that do not support the growth of C₃ plants should be explained.

Concept introduction:

C₃ plants have no specific adaptations to minimize photorespiration. But C₄ plants have a mechanism to reduce photorespiration. In C_4, cells light-dependent reactions and Calvin cycles occur in two different types of cell

Interpretation Introduction

(d)

Interpretation:

A possible explanation of why C₃ plants continue to increase photosynthetic activity at higher CO₂ concentrations, whereas C₄ plants reach a plateau should be suggested.

Concept introduction:

In C₄ plants, atmospheric CO₂ is first fixed in one type of cell as oxaloacetate and then converted to malate. Malate is then broken down to produce CO₂ in another type of cells. This CO₂ is then fixed to produce glucose via the Calvin cycle like C₃ plants.

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See solution

Answer 3

Question

Chapter 20, Problem 46P

Interpretation Introduction

(a)

Interpretation:

The data were most likely to be generated by the C₄ plant and C₃ plant should be determined.

Concept introduction:

When O₂content is high in the atmosphere, the Rubisco enzyme(carbon-fixing enzyme of Calvin cycle) binds with O₂ instead of CO₂. The O₂binding initiates oxygenase reaction rather than carboxylase reaction. This process is called photorespiration.

Interpretation Introduction

(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

Interpretation Introduction

(c)

Interpretation:

Why C₄ plants thrive at CO₂ concentrations that do not support the growth of C₃ plants should be explained.

Concept introduction:

C₃ plants have no specific adaptations to minimize photorespiration. But C₄ plants have a mechanism to reduce photorespiration. In C_4, cells light-dependent reactions and Calvin cycles occur in two different types of cell

Interpretation Introduction

(d)

Interpretation:

A possible explanation of why C₃ plants continue to increase photosynthetic activity at higher CO₂ concentrations, whereas C₄ plants reach a plateau should be suggested.

Concept introduction:

In C₄ plants, atmospheric CO₂ is first fixed in one type of cell as oxaloacetate and then converted to malate. Malate is then broken down to produce CO₂ in another type of cells. This CO₂ is then fixed to produce glucose via the Calvin cycle like C₃ plants.

Expert Solution & Answer

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Answer 4

Question

Chapter 20, Problem 46P

Interpretation Introduction

(a)

Interpretation:

The data were most likely to be generated by the C₄ plant and C₃ plant should be determined.

Concept introduction:

When O₂content is high in the atmosphere, the Rubisco enzyme(carbon-fixing enzyme of Calvin cycle) binds with O₂ instead of CO₂. The O₂binding initiates oxygenase reaction rather than carboxylase reaction. This process is called photorespiration.

Interpretation Introduction

(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

Interpretation Introduction

(c)

Interpretation:

Why C₄ plants thrive at CO₂ concentrations that do not support the growth of C₃ plants should be explained.

Concept introduction:

C₃ plants have no specific adaptations to minimize photorespiration. But C₄ plants have a mechanism to reduce photorespiration. In C_4, cells light-dependent reactions and Calvin cycles occur in two different types of cell

Interpretation Introduction

(d)

Interpretation:

A possible explanation of why C₃ plants continue to increase photosynthetic activity at higher CO₂ concentrations, whereas C₄ plants reach a plateau should be suggested.

Concept introduction:

In C₄ plants, atmospheric CO₂ is first fixed in one type of cell as oxaloacetate and then converted to malate. Malate is then broken down to produce CO₂ in another type of cells. This CO₂ is then fixed to produce glucose via the Calvin cycle like C₃ plants.

Expert Solution & Answer

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See solution

Answer 5

Chapter 20, Problem 46P

Interpretation Introduction

(a)

Interpretation:

The data were most likely to be generated by the C₄ plant and C₃ plant should be determined.

Concept introduction:

When O₂content is high in the atmosphere, the Rubisco enzyme(carbon-fixing enzyme of Calvin cycle) binds with O₂ instead of CO₂. The O₂binding initiates oxygenase reaction rather than carboxylase reaction. This process is called photorespiration.

Interpretation Introduction

(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

Interpretation Introduction

(c)

Interpretation:

Why C₄ plants thrive at CO₂ concentrations that do not support the growth of C₃ plants should be explained.

Concept introduction:

C₃ plants have no specific adaptations to minimize photorespiration. But C₄ plants have a mechanism to reduce photorespiration. In C_4, cells light-dependent reactions and Calvin cycles occur in two different types of cell

Interpretation Introduction

(d)

Interpretation:

A possible explanation of why C₃ plants continue to increase photosynthetic activity at higher CO₂ concentrations, whereas C₄ plants reach a plateau should be suggested.

Concept introduction:

In C₄ plants, atmospheric CO₂ is first fixed in one type of cell as oxaloacetate and then converted to malate. Malate is then broken down to produce CO₂ in another type of cells. This CO₂ is then fixed to produce glucose via the Calvin cycle like C₃ plants.

Answer 6

Chapter 20, Problem 46P

Interpretation Introduction

(a)

Interpretation:

The data were most likely to be generated by the C₄ plant and C₃ plant should be determined.

Concept introduction:

When O₂content is high in the atmosphere, the Rubisco enzyme(carbon-fixing enzyme of Calvin cycle) binds with O₂ instead of CO₂. The O₂binding initiates oxygenase reaction rather than carboxylase reaction. This process is called photorespiration.

Answer 7

Chapter 20, Problem 46P

Interpretation Introduction

(a)

Interpretation:

The data were most likely to be generated by the C₄ plant and C₃ plant should be determined.

Concept introduction:

When O₂content is high in the atmosphere, the Rubisco enzyme(carbon-fixing enzyme of Calvin cycle) binds with O₂ instead of CO₂. The O₂binding initiates oxygenase reaction rather than carboxylase reaction. This process is called photorespiration.

Answer 8

Interpretation Introduction

(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

Answer 9

Interpretation Introduction

(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

Answer 10

Interpretation Introduction

(c)

Interpretation:

Why C₄ plants thrive at CO₂ concentrations that do not support the growth of C₃ plants should be explained.

Concept introduction:

C₃ plants have no specific adaptations to minimize photorespiration. But C₄ plants have a mechanism to reduce photorespiration. In C_4, cells light-dependent reactions and Calvin cycles occur in two different types of cell

Answer 11

Interpretation Introduction

(c)

Interpretation:

Why C₄ plants thrive at CO₂ concentrations that do not support the growth of C₃ plants should be explained.

Concept introduction:

C₃ plants have no specific adaptations to minimize photorespiration. But C₄ plants have a mechanism to reduce photorespiration. In C_4, cells light-dependent reactions and Calvin cycles occur in two different types of cell

Answer 12

Interpretation Introduction

(d)

Interpretation:

A possible explanation of why C₃ plants continue to increase photosynthetic activity at higher CO₂ concentrations, whereas C₄ plants reach a plateau should be suggested.

Concept introduction:

In C₄ plants, atmospheric CO₂ is first fixed in one type of cell as oxaloacetate and then converted to malate. Malate is then broken down to produce CO₂ in another type of cells. This CO₂ is then fixed to produce glucose via the Calvin cycle like C₃ plants.

Answer 13

Interpretation Introduction

(d)

Interpretation:

A possible explanation of why C₃ plants continue to increase photosynthetic activity at higher CO₂ concentrations, whereas C₄ plants reach a plateau should be suggested.

Concept introduction:

In C₄ plants, atmospheric CO₂ is first fixed in one type of cell as oxaloacetate and then converted to malate. Malate is then broken down to produce CO₂ in another type of cells. This CO₂ is then fixed to produce glucose via the Calvin cycle like C₃ plants.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 20 - Prob. 1P Ch. 20 - Prob. 2P Ch. 20 - Prob. 3P Ch. 20 - Prob. 4P Ch. 20 - Prob. 5P Ch. 20 - Prob. 6P Ch. 20 - Prob. 7P Ch. 20 - Prob. 8P Ch. 20 - Prob. 9P Ch. 20 - Prob. 10P

Solution Summary: The author explains that the data were most likely to be generated by the C 4 plant and C 3 plant.

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(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

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Chapter 20 Solutions

Solution Summary: The author explains that the data were most likely to be generated by the C 4 plant and C 3 plant.

Concept explainers

Videos

(b) Interpretation: Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined. Concept introduction: Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.

Want to see the full answer?

Chapter 20 Solutions

(b)

Interpretation:

Possible explanations for the decrease in photosynthetic activity at higher temperature should be determined.

Concept introduction:

Multiple factors affect enzyme activity such as temperature, pH, enzyme concentration, substrate concentration, and inhibitors or activators.