To examine: Whether the statement “After an electron has been removed by light, the positively charged chlorophyll in the reaction center of the first photosystem (photo system II) has a greater affinity for electrons than O 2 has” is correct or incorrect. Introduction: Photosystems that are present in the thylakoid membrane of plants are the functional and structural units of protein complexes that are involved in the photosynthesis process. It consists of two reaction centers, namely photosystem I (P700) and photosystem II (P680). For the oxygenic photosynthesis, both the photosystems are required.

Question

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Answer 1

Question

Chapter 14, Problem 11Q

A.

Summary Introduction

To examine: Whether the statement “After an electron has been removed by light, the positively charged chlorophyll in the reaction center of the first photosystem (photo system II) has a greater affinity for electrons than O₂ has” is correct or incorrect.

Introduction: Photosystems that are present in the thylakoid membrane of plants are the functional and structural units of protein complexes that are involved in the photosynthesis process. It consists of two reaction centers, namely photosystem I (P700) and photosystem II (P680). For the oxygenic photosynthesis, both the photosystems are required.

B.

Summary Introduction

To examine: Whether the statement “Photosynthesis is the light-driven transfer of an electron from chlorophyll to a second molecule that normally has a much lower affinity for electrons” is correct or incorrect.

Introduction: Photosynthesis is a process by which carbon dioxide and water are used to produce glucose molecules using energy from sunlight. During this process, oxygen gas is evolved. Reactions of the photosynthesis take place in the chloroplast of the plant cell that contains the green pigment chlorophyll.

C.

Summary Introduction

To examine: Whether the statement “Because it requires the removal of four electrons to release one O₂ molecule from two H₂O molecules, the water splitting enzyme in photo system II has to keep the reaction intermediates tightly bound so as to prevent partly reduced, and therefore, hazardous, superoxide radicals from escaping” is correct or incorrect.

Introduction: Photosynthesis is a process in which carbon dioxide and water are consumed to produce food (sugar) and oxygen in the presence of sunlight. It converts the solar energy into chemical energy and stores it in the food produced. This food is consumed by other organisms.

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Answer 2

Question

Chapter 14, Problem 11Q

A.

Summary Introduction

To examine: Whether the statement “After an electron has been removed by light, the positively charged chlorophyll in the reaction center of the first photosystem (photo system II) has a greater affinity for electrons than O₂ has” is correct or incorrect.

Introduction: Photosystems that are present in the thylakoid membrane of plants are the functional and structural units of protein complexes that are involved in the photosynthesis process. It consists of two reaction centers, namely photosystem I (P700) and photosystem II (P680). For the oxygenic photosynthesis, both the photosystems are required.

B.

Summary Introduction

To examine: Whether the statement “Photosynthesis is the light-driven transfer of an electron from chlorophyll to a second molecule that normally has a much lower affinity for electrons” is correct or incorrect.

Introduction: Photosynthesis is a process by which carbon dioxide and water are used to produce glucose molecules using energy from sunlight. During this process, oxygen gas is evolved. Reactions of the photosynthesis take place in the chloroplast of the plant cell that contains the green pigment chlorophyll.

C.

Summary Introduction

To examine: Whether the statement “Because it requires the removal of four electrons to release one O₂ molecule from two H₂O molecules, the water splitting enzyme in photo system II has to keep the reaction intermediates tightly bound so as to prevent partly reduced, and therefore, hazardous, superoxide radicals from escaping” is correct or incorrect.

Introduction: Photosynthesis is a process in which carbon dioxide and water are consumed to produce food (sugar) and oxygen in the presence of sunlight. It converts the solar energy into chemical energy and stores it in the food produced. This food is consumed by other organisms.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 14, Problem 11Q

A.

Summary Introduction

To examine: Whether the statement “After an electron has been removed by light, the positively charged chlorophyll in the reaction center of the first photosystem (photo system II) has a greater affinity for electrons than O₂ has” is correct or incorrect.

Introduction: Photosystems that are present in the thylakoid membrane of plants are the functional and structural units of protein complexes that are involved in the photosynthesis process. It consists of two reaction centers, namely photosystem I (P700) and photosystem II (P680). For the oxygenic photosynthesis, both the photosystems are required.

B.

Summary Introduction

To examine: Whether the statement “Photosynthesis is the light-driven transfer of an electron from chlorophyll to a second molecule that normally has a much lower affinity for electrons” is correct or incorrect.

Introduction: Photosynthesis is a process by which carbon dioxide and water are used to produce glucose molecules using energy from sunlight. During this process, oxygen gas is evolved. Reactions of the photosynthesis take place in the chloroplast of the plant cell that contains the green pigment chlorophyll.

C.

Summary Introduction

To examine: Whether the statement “Because it requires the removal of four electrons to release one O₂ molecule from two H₂O molecules, the water splitting enzyme in photo system II has to keep the reaction intermediates tightly bound so as to prevent partly reduced, and therefore, hazardous, superoxide radicals from escaping” is correct or incorrect.

Introduction: Photosynthesis is a process in which carbon dioxide and water are consumed to produce food (sugar) and oxygen in the presence of sunlight. It converts the solar energy into chemical energy and stores it in the food produced. This food is consumed by other organisms.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Chapter 14, Problem 11Q

A.

Summary Introduction

To examine: Whether the statement “After an electron has been removed by light, the positively charged chlorophyll in the reaction center of the first photosystem (photo system II) has a greater affinity for electrons than O₂ has” is correct or incorrect.

Introduction: Photosystems that are present in the thylakoid membrane of plants are the functional and structural units of protein complexes that are involved in the photosynthesis process. It consists of two reaction centers, namely photosystem I (P700) and photosystem II (P680). For the oxygenic photosynthesis, both the photosystems are required.

B.

Summary Introduction

To examine: Whether the statement “Photosynthesis is the light-driven transfer of an electron from chlorophyll to a second molecule that normally has a much lower affinity for electrons” is correct or incorrect.

Introduction: Photosynthesis is a process by which carbon dioxide and water are used to produce glucose molecules using energy from sunlight. During this process, oxygen gas is evolved. Reactions of the photosynthesis take place in the chloroplast of the plant cell that contains the green pigment chlorophyll.

C.

Summary Introduction

To examine: Whether the statement “Because it requires the removal of four electrons to release one O₂ molecule from two H₂O molecules, the water splitting enzyme in photo system II has to keep the reaction intermediates tightly bound so as to prevent partly reduced, and therefore, hazardous, superoxide radicals from escaping” is correct or incorrect.

Introduction: Photosynthesis is a process in which carbon dioxide and water are consumed to produce food (sugar) and oxygen in the presence of sunlight. It converts the solar energy into chemical energy and stores it in the food produced. This food is consumed by other organisms.

Expert Solution & Answer

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See solution

Answer 5

Chapter 14, Problem 11Q

A.

Summary Introduction

To examine: Whether the statement “After an electron has been removed by light, the positively charged chlorophyll in the reaction center of the first photosystem (photo system II) has a greater affinity for electrons than O₂ has” is correct or incorrect.

Introduction: Photosystems that are present in the thylakoid membrane of plants are the functional and structural units of protein complexes that are involved in the photosynthesis process. It consists of two reaction centers, namely photosystem I (P700) and photosystem II (P680). For the oxygenic photosynthesis, both the photosystems are required.

B.

Summary Introduction

To examine: Whether the statement “Photosynthesis is the light-driven transfer of an electron from chlorophyll to a second molecule that normally has a much lower affinity for electrons” is correct or incorrect.

Introduction: Photosynthesis is a process by which carbon dioxide and water are used to produce glucose molecules using energy from sunlight. During this process, oxygen gas is evolved. Reactions of the photosynthesis take place in the chloroplast of the plant cell that contains the green pigment chlorophyll.

C.

Summary Introduction

To examine: Whether the statement “Because it requires the removal of four electrons to release one O₂ molecule from two H₂O molecules, the water splitting enzyme in photo system II has to keep the reaction intermediates tightly bound so as to prevent partly reduced, and therefore, hazardous, superoxide radicals from escaping” is correct or incorrect.

Introduction: Photosynthesis is a process in which carbon dioxide and water are consumed to produce food (sugar) and oxygen in the presence of sunlight. It converts the solar energy into chemical energy and stores it in the food produced. This food is consumed by other organisms.

Answer 6

Chapter 14, Problem 11Q

A.

Summary Introduction

To examine: Whether the statement “After an electron has been removed by light, the positively charged chlorophyll in the reaction center of the first photosystem (photo system II) has a greater affinity for electrons than O₂ has” is correct or incorrect.

Introduction: Photosystems that are present in the thylakoid membrane of plants are the functional and structural units of protein complexes that are involved in the photosynthesis process. It consists of two reaction centers, namely photosystem I (P700) and photosystem II (P680). For the oxygenic photosynthesis, both the photosystems are required.

Answer 7

Chapter 14, Problem 11Q

A.

Summary Introduction

To examine: Whether the statement “After an electron has been removed by light, the positively charged chlorophyll in the reaction center of the first photosystem (photo system II) has a greater affinity for electrons than O₂ has” is correct or incorrect.

Introduction: Photosystems that are present in the thylakoid membrane of plants are the functional and structural units of protein complexes that are involved in the photosynthesis process. It consists of two reaction centers, namely photosystem I (P700) and photosystem II (P680). For the oxygenic photosynthesis, both the photosystems are required.

Answer 8

B.

Summary Introduction

To examine: Whether the statement “Photosynthesis is the light-driven transfer of an electron from chlorophyll to a second molecule that normally has a much lower affinity for electrons” is correct or incorrect.

Introduction: Photosynthesis is a process by which carbon dioxide and water are used to produce glucose molecules using energy from sunlight. During this process, oxygen gas is evolved. Reactions of the photosynthesis take place in the chloroplast of the plant cell that contains the green pigment chlorophyll.

Answer 9

B.

Summary Introduction

To examine: Whether the statement “Photosynthesis is the light-driven transfer of an electron from chlorophyll to a second molecule that normally has a much lower affinity for electrons” is correct or incorrect.

Introduction: Photosynthesis is a process by which carbon dioxide and water are used to produce glucose molecules using energy from sunlight. During this process, oxygen gas is evolved. Reactions of the photosynthesis take place in the chloroplast of the plant cell that contains the green pigment chlorophyll.

Answer 10

C.

Summary Introduction

To examine: Whether the statement “Because it requires the removal of four electrons to release one O₂ molecule from two H₂O molecules, the water splitting enzyme in photo system II has to keep the reaction intermediates tightly bound so as to prevent partly reduced, and therefore, hazardous, superoxide radicals from escaping” is correct or incorrect.

Introduction: Photosynthesis is a process in which carbon dioxide and water are consumed to produce food (sugar) and oxygen in the presence of sunlight. It converts the solar energy into chemical energy and stores it in the food produced. This food is consumed by other organisms.

Answer 11

C.

Summary Introduction

To examine: Whether the statement “Because it requires the removal of four electrons to release one O₂ molecule from two H₂O molecules, the water splitting enzyme in photo system II has to keep the reaction intermediates tightly bound so as to prevent partly reduced, and therefore, hazardous, superoxide radicals from escaping” is correct or incorrect.

Introduction: Photosynthesis is a process in which carbon dioxide and water are consumed to produce food (sugar) and oxygen in the presence of sunlight. It converts the solar energy into chemical energy and stores it in the food produced. This food is consumed by other organisms.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 14 - Prob. 1Q Ch. 14 - Prob. 2Q Ch. 14 - Prob. 3Q Ch. 14 - Prob. 4Q Ch. 14 - Prob. 5Q Ch. 14 - Prob. 6Q Ch. 14 - Prob. 7Q Ch. 14 - Prob. 8Q Ch. 14 - Prob. 9Q Ch. 14 - Prob. 10Q

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