The rate of photosynthetic CO2 fixation _____ and the rate of the release of CO2 by photorespiration _______ when _____ plants are grown in a closed container.

A) decreases,increases,C3 B) increases,decreases,C3 C) decreases,increases,C4 D) decreases,decreases,C3 E) increases,increases,C3 A) decreases,increases,C3 B) increases,decreases,C3 C) decreases,increases,C4 D) decreases,decreases,C3 E) increases,increases,C3

You are growing algae in culture and expose them to CO2 that contains radiolabeled oxygen.Where does the radiolabeled oxygen end up after photosynthesis?

A) water B) oxygen C) carbon dioxide D) carbohydrates E) carbon monoxide A) water B) oxygen C) carbon dioxide D) carbohydrates E) carbon monoxide

What is the difference between the way C3 and C4 plants fix CO2 from the atmosphere?

A) C3 plants fix CO2 and conduct the light-dependent reactions in the same cells; C4 plants conduct these activities in different cells. B) C4 plants fix CO2 and conduct the light-dependent reactions in the same cells; C3 plants conduct these activities in different cells. C) C3 plants fix CO2 and conduct the light-dependent reactions at the same time of day; C4 plants conduct these activities at different times of the day. D) C4 plants fix CO2 and conduct the light-dependent reactions at the same time of day; C3 plants conduct these activities at different times of the day. E) C3 plants fix CO2 and conduct the light-independent reactions in the same cells; C4 plants conduct these activities in different cells. A) C3 plants fix CO2 and conduct the light-dependent reactions in the same cells; C4 plants conduct these activities in different cells. B) C4 plants fix CO2 and conduct the light-dependent reactions in the same cells; C3 plants conduct these activities in different cells. C) C3 plants fix CO2 and conduct the light-dependent reactions at the same time of day; C4 plants conduct these activities at different times of the day. D) C4 plants fix CO2 and conduct the light-dependent reactions at the same time of day; C3 plants conduct these activities at different times of the day. E) C3 plants fix CO2 and conduct the light-independent reactions in the same cells; C4 plants conduct these activities in different cells.

What is the reason that C3 plants must open their stomata even when the climate is hot and dry?

A) To take in CO B) To take in CO2 C) To take in water D) To let CO2 out of the leaf E) To take in O2 A) To take in CO B) To take in CO2 C) To take in water D) To let CO2 out of the leaf E) To take in O2

Why is the conversion of CO2 to a 6-carbon sugar so energetically expensive?

A) CO2 is the most highly reduced and least energetic form in which carbon can occur. B) CO2 is very unstable. C) CO2 is the most highly oxidized and least energetic form in which carbon can occur. D) CO2 is the most highly oxidized and most energetic form in which carbon can occur. E) CO2 is highly unstable and only moderately energetic which makes the process more expensive energetically. A) CO2 is the most highly reduced and least energetic form in which carbon can occur. B) CO2 is very unstable. C) CO2 is the most highly oxidized and least energetic form in which carbon can occur. D) CO2 is the most highly oxidized and most energetic form in which carbon can occur. E) CO2 is highly unstable and only moderately energetic which makes the process more expensive energetically.

Why is the process whereby O2 is added to RuBP called photorespiration?

A) because O2 is released and CO2 is taken up B) because CO2 is released and O2 is taken up C) because breathing is necessary D) because RuBP is released E) because it occurs in crop plants A) because O2 is released and CO2 is taken up B) because CO2 is released and O2 is taken up C) because breathing is necessary D) because RuBP is released E) because it occurs in crop plants

Exam 6: Photosynthesis and the Chloroplast

Which molecule carries electrons to the luminal side of the positively charged PSI reaction center where they are transferred to pigment P700⁺,the positively charged reaction-center pigment of PSI?

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What are the major strategies for atmospheric CO₂ mitigation?

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Decreasing CO₂ production,such as through alternative energy sources and improved efficiency in heating and transportation,will lower the amount of greenhouse gas in the atmosphere.Other strategies relate to carbon sequestration,including the production of biofuels and inhibiting the loss of carbon fixation capacity that occurs through deforestation.

The earliest photosynthetic organisms on Earth probably used what substance as an electron source for photosynthesis?

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Showing 1 - 20 of 98

Which molecule carries electrons to the luminal side of the positively charged PSI reaction center where they are transferred to pigment P700⁺,the positively charged reaction-center pigment of PSI?

What are the major strategies for atmospheric CO₂ mitigation?

The earliest photosynthetic organisms on Earth probably used what substance as an electron source for photosynthesis?

The rate of photosynthetic CO₂ fixation _ and the rate of the release of CO₂ by photorespiration _ when ___ plants are grown in a closed container.

You are growing algae in culture and expose them to CO₂ that contains radiolabeled oxygen.Where does the radiolabeled oxygen end up after photosynthesis?

Why is it necessary to shut down the Calvin Cycle in the dark when ATP and NADPH levels fall?

The LHCII complex binds pigments and holds them in close contact with one another.What is the advantage of the close contact between the pigments?

Why are organisms that presently use hydrogen sulfide as an electron source limited in their distribution and importance?

What is the difference between the way C₃ and C₄ plants fix CO₂ from the atmosphere?

What is the reason that C₃ plants must open their stomata even when the climate is hot and dry?

The initial product of carbon fixation contains carbons,but it breaks down into two compounds containing _ carbons.

Algal cultures in sealed containers were exposed to radiolabeled [¹⁴C]O₂ for a brief incubation period.Soluble molecules were extracted from the algae and subjected to 2D-paper chromatography.How many carbons are found in the most predominant spot on the chromatogram?

Why is the conversion of CO₂ to a 6-carbon sugar so energetically expensive?

Why is the process whereby O₂ is added to RuBP called photorespiration?

An investigator radioactively labels CO₂ with ¹⁴C.He exposes a plant from a temperate climate to the radiolabeled CO₂.In what molecule does the ¹⁴C first appear to accumulate stably? Where does the ¹⁴C appear in a plant that is well adapted for life in a hot,dry habitat?

Why does an electrochemical potential build up in mitochondria,but not in chloroplasts?

What substance is made in the mesophyll cells of CAM plants during the nighttime fixation of CO₂ and then stored in the cell's central vacuole?

High intensity light has a negative effect on photosynthesis; in fact,too much light can diminish photosynthetic output.This phenomenon is known as _______.

Thylakoid membranes have ___________.

Which type of chlorophyll is found in red algae?

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics,enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

Exam 6: Photosynthesis and the Chloroplast

Which molecule carries electrons to the luminal side of the positively charged PSI reaction center where they are transferred to pigment P700+,the positively charged reaction-center pigment of PSI?

What are the major strategies for atmospheric CO2 mitigation?

The earliest photosynthetic organisms on Earth probably used what substance as an electron source for photosynthesis?

The rate of photosynthetic CO2 fixation _____ and the rate of the release of CO2 by photorespiration _______ when _____ plants are grown in a closed container.

You are growing algae in culture and expose them to CO2 that contains radiolabeled oxygen.Where does the radiolabeled oxygen end up after photosynthesis?

Why is it necessary to shut down the Calvin Cycle in the dark when ATP and NADPH levels fall?

The LHCII complex binds pigments and holds them in close contact with one another.What is the advantage of the close contact between the pigments?

Why are organisms that presently use hydrogen sulfide as an electron source limited in their distribution and importance?

What is the difference between the way C3 and C4 plants fix CO2 from the atmosphere?

What is the reason that C3 plants must open their stomata even when the climate is hot and dry?

The initial product of carbon fixation contains ____ carbons,but it breaks down into two compounds containing _____ carbons.

Algal cultures in sealed containers were exposed to radiolabeled [14C]O2 for a brief incubation period.Soluble molecules were extracted from the algae and subjected to 2D-paper chromatography.How many carbons are found in the most predominant spot on the chromatogram?

Why is the conversion of CO2 to a 6-carbon sugar so energetically expensive?

Why is the process whereby O2 is added to RuBP called photorespiration?

An investigator radioactively labels CO2 with 14C.He exposes a plant from a temperate climate to the radiolabeled CO2.In what molecule does the 14C first appear to accumulate stably? Where does the 14C appear in a plant that is well adapted for life in a hot,dry habitat?

Why does an electrochemical potential build up in mitochondria,but not in chloroplasts?

What substance is made in the mesophyll cells of CAM plants during the nighttime fixation of CO2 and then stored in the cell's central vacuole?

High intensity light has a negative effect on photosynthesis; in fact,too much light can diminish photosynthetic output.This phenomenon is known as _______.

Thylakoid membranes have ___________.

Which type of chlorophyll is found in red algae?

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics,enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Aerobic Respiration and the Mitochondrion

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

Which molecule carries electrons to the luminal side of the positively charged PSI reaction center where they are transferred to pigment P700⁺,the positively charged reaction-center pigment of PSI?

What are the major strategies for atmospheric CO₂ mitigation?

The rate of photosynthetic CO₂ fixation _ and the rate of the release of CO₂ by photorespiration _ when ___ plants are grown in a closed container.

You are growing algae in culture and expose them to CO₂ that contains radiolabeled oxygen.Where does the radiolabeled oxygen end up after photosynthesis?

What is the difference between the way C₃ and C₄ plants fix CO₂ from the atmosphere?

What is the reason that C₃ plants must open their stomata even when the climate is hot and dry?

The initial product of carbon fixation contains carbons,but it breaks down into two compounds containing _ carbons.

Algal cultures in sealed containers were exposed to radiolabeled [¹⁴C]O₂ for a brief incubation period.Soluble molecules were extracted from the algae and subjected to 2D-paper chromatography.How many carbons are found in the most predominant spot on the chromatogram?

Why is the conversion of CO₂ to a 6-carbon sugar so energetically expensive?

Why is the process whereby O₂ is added to RuBP called photorespiration?

An investigator radioactively labels CO₂ with ¹⁴C.He exposes a plant from a temperate climate to the radiolabeled CO₂.In what molecule does the ¹⁴C first appear to accumulate stably? Where does the ¹⁴C appear in a plant that is well adapted for life in a hot,dry habitat?

What substance is made in the mesophyll cells of CAM plants during the nighttime fixation of CO₂ and then stored in the cell's central vacuole?