It is believed that the ratio of cyclic electron transport to Z-scheme photosynthesis changes in response to metabolic demands. If a plant were using the C4 Hatch-Slack pathway, how would it alter these processes compared to a plant just performing the standard C3 Calvin cycle to produce glucose?

A) More cyclic photophosphorylation, less Z-scheme. B) More Z-scheme photosynthesis, less cyclic photophosphorylation. C) No significant difference. D) Impossible to predict from the information provided. A) More cyclic photophosphorylation, less Z-scheme. B) More Z-scheme photosynthesis, less cyclic photophosphorylation. C) No significant difference. D) Impossible to predict from the information provided.

Which of the following is not true regarding the C4 pathway?

A) The C4 pathway allows for the concentration of CO2 B) the KM for CO2 is lower with Rubisco than for phosphoenolpyruvate carboxylase C) Rubisco also has an oxygenase activity that appears to be a wasteful process in terms of energy production D) The C4 pathway alleviates some of the wastefulness of the oxygenase activity of Rubisco by concentrating CO2 in the interior of the plant. A) The C4 pathway allows for the concentration of CO2 B) the KM for CO2 is lower with Rubisco than for phosphoenolpyruvate carboxylase C) Rubisco also has an oxygenase activity that appears to be a wasteful process in terms of energy production D) The C4 pathway alleviates some of the wastefulness of the oxygenase activity of Rubisco by concentrating CO2 in the interior of the plant.

The fixation of CO2 to form sugars requires the following:

A) Oxygen, O2. B) ATP. C) NADPH. D) Both ATP and NADPH. E) All 3 of these are required to convert CO2 to sugar. A) Oxygen, O2. B) ATP. C) NADPH. D) Both ATP and NADPH. E) All 3 of these are required to convert CO2 to sugar.

For the net synthesis of one six-carbon sugar from CO2 in photosynthesis there is a requirement for

A) 12 ATP and 12 NADPH. B) 18 ATP and 18 NADPH. C) 12 ATP and 18 NADPH. D) 18 ATP and 12 NADPH. A) 12 ATP and 12 NADPH. B) 18 ATP and 18 NADPH. C) 12 ATP and 18 NADPH. D) 18 ATP and 12 NADPH.

Exam 22: Photosynthesis

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It is believed that the ratio of cyclic electron transport to Z-scheme photosynthesis changes in response to metabolic demands. If a plant were using the C₄ Hatch-Slack pathway, how would it alter these processes compared to a plant just performing the standard C₃ Calvin cycle to produce glucose?

(Multiple Choice)

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Question 21

Which of the following is the mobile electron carrier from Photosystem II to the cytochrome b₆ f complex?

(Multiple Choice)

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Question 22

The light phase of photosynthesis is closest to which other metabolic process?

(Multiple Choice)

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Question 23

Rubisco is a rare example of an enzyme whose genetic information is found in two different cellular compartments.

(True/False)

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Question 24

Which of the following is not true regarding the C₄ pathway?

(Multiple Choice)

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Question 25

Ferredoxin is important in photosynthesis in forming NADH.

(True/False)

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Question 26

Wavelengths of what color are mostly responsible for the reactions in the light phase of photosynthesis?

(Multiple Choice)

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Question 27

The enzyme, ribulose 1,5 bis phosphate carboxylase (Rubisco), is:

(Multiple Choice)

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Question 28

The fixation of CO₂ to form sugars requires the following:

(Multiple Choice)

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Question 29

The efficiency of energy use in photosynthesis is approximately

(Multiple Choice)

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Question 30

The production of ATP in photosynthesis

(Multiple Choice)

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Question 31

The Hatch-Slack Pathway is important in tropical zones since, in order to conserve water, the pores of tropical leaves are very small.

(True/False)

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Question 32

The transfer of electrons from water to NADP⁺ to produce oxygen and NADPH is a highly exergonic process.

(True/False)

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Question 33

The earliest photosynthetic organisms most likely used water as an electron source.

(True/False)

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Question 34

The terminal electron acceptor during the light phase of photosynthesis in green plants is

(Multiple Choice)

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Question 35

Presence of oxygen can poison the reaction of Rubisco, due to an alternate reaction in which the ribulose 1,5 bis phosphate is oxidized, rather than reacting with CO₂

(True/False)

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Question 36

The region of the chloroplast between the inner membrane and the thylakoid membrane is called

(Multiple Choice)

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Question 37

Which of the following is a similarity between light reaction and dark reaction?

(Multiple Choice)

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Question 38

Anaerobic, photosynthetic bacteria differ from green plants in that they only have one type of chlorophyll.

(True/False)

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Question 39

For the net synthesis of one six-carbon sugar from CO₂ in photosynthesis there is a requirement for

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Question 40

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Exam 22: Photosynthesis

It is believed that the ratio of cyclic electron transport to Z-scheme photosynthesis changes in response to metabolic demands. If a plant were using the C4 Hatch-Slack pathway, how would it alter these processes compared to a plant just performing the standard C3 Calvin cycle to produce glucose?

Which of the following is the mobile electron carrier from Photosystem II to the cytochrome b6 f complex?

The light phase of photosynthesis is closest to which other metabolic process?

Rubisco is a rare example of an enzyme whose genetic information is found in two different cellular compartments.

Which of the following is not true regarding the C4 pathway?

Ferredoxin is important in photosynthesis in forming NADH.

Wavelengths of what color are mostly responsible for the reactions in the light phase of photosynthesis?

The enzyme, ribulose 1,5 bis phosphate carboxylase (Rubisco), is:

The fixation of CO2 to form sugars requires the following:

The efficiency of energy use in photosynthesis is approximately

The production of ATP in photosynthesis

The Hatch-Slack Pathway is important in tropical zones since, in order to conserve water, the pores of tropical leaves are very small.

The transfer of electrons from water to NADP+ to produce oxygen and NADPH is a highly exergonic process.

The earliest photosynthetic organisms most likely used water as an electron source.

The terminal electron acceptor during the light phase of photosynthesis in green plants is

Presence of oxygen can poison the reaction of Rubisco, due to an alternate reaction in which the ribulose 1,5 bis phosphate is oxidized, rather than reacting with CO2

The region of the chloroplast between the inner membrane and the thylakoid membrane is called

​ Which of the following is a similarity between light reaction and dark reaction?

Anaerobic, photosynthetic bacteria differ from green plants in that they only have one type of chlorophyll.

For the net synthesis of one six-carbon sugar from CO2 in photosynthesis there is a requirement for

Biochemistry and the Organization of Cells

Water the Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins Enzymes

The Behavior of Proteins Enzymes Mechanisms and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids How Structure Conveys Information

Biosynthesis of Nucleic Acids Replication

Transcription of the Genetic Code the Biosynthesis of Rna

Protein Synthesis Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses Cancer and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Lipid Metabolism

The Metabolism of Nitrogen

Integration of Metabolism Cellular Signaling

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Which of the following is the mobile electron carrier from Photosystem II to the cytochrome b₆ f complex?

Which of the following is not true regarding the C₄ pathway?

The fixation of CO₂ to form sugars requires the following:

The transfer of electrons from water to NADP⁺ to produce oxygen and NADPH is a highly exergonic process.

Presence of oxygen can poison the reaction of Rubisco, due to an alternate reaction in which the ribulose 1,5 bis phosphate is oxidized, rather than reacting with CO₂

Which of the following is a similarity between light reaction and dark reaction?

For the net synthesis of one six-carbon sugar from CO₂ in photosynthesis there is a requirement for