Question 1

The Krebs cycle functions to

Accepted Answer

A)  accept electrons and hydrogen ions from energy carriers. 
B)  transform carbon from carbon dioxide into sugar. 
C)  use energy from sunlight to split water molecules. 
D)  transfer chemical energy from pyruvate to energy carriers. 
A)  accept electrons and hydrogen ions from energy carriers. 
B)  transform carbon from carbon dioxide into sugar. 
C)  use energy from sunlight to split water molecules. 
D)  transfer chemical energy from pyruvate to energy carriers.

Question 2

As an energy carrier,ATP differs from NADPH in that

Accepted Answer

A)  ATP transfers energy through phosphorylation, whereas NADPH donates electrons and hydrogen ions. 
B)  ATP transfers energy through redox reactions, whereas NADPH uses phosphorylation. 
C)  NADPH is involved in a larger variety of chemical reactions than ATP. 
D)  NADPH is made by photosystem I, whereas ATP is made by photosystem II. 
A)  ATP transfers energy through phosphorylation, whereas NADPH donates electrons and hydrogen ions. 
B)  ATP transfers energy through redox reactions, whereas NADPH uses phosphorylation. 
C)  NADPH is involved in a larger variety of chemical reactions than ATP. 
D)  NADPH is made by photosystem I, whereas ATP is made by photosystem II.

Question 3

What products are produced by the light reactions of photosynthesis? Of these products,which are by-products that are released to the atmosphere? Which products are used within the Calvin cycle?

Accepted Answer

The products of the light reactions of p

Question 4

For each characteristic below,determine if it applies to the light reactions or the light-independent reactions of photosynthesis.
-uses carbon dioxide

Accepted Answer

A)  light reactions 
B)  light-independent reactions 
A)  light reactions 
B)  light-independent reactions

Question 5

Determine whether each statement is an analogy for an anabolic pathway or a catabolic pathway.
-An individual spends money on a new car.

Accepted Answer

A) anabolic 
B) catabolic 
A) anabolic 
B) catabolic

Question 6

If the mitochondria of a cell did not produce an inner membrane,the mitochondria would be unable to

Accepted Answer

A)  maintain the proton gradient required for ATP production. 
B)  capture ATP from the sun. 
C)  perform the Krebs cycle. 
D)  perform glycolysis. 
A)  maintain the proton gradient required for ATP production. 
B)  capture ATP from the sun. 
C)  perform the Krebs cycle. 
D)  perform glycolysis.

Question 7

Which of the following statements comparing photosynthesis and cellular respiration is accurate?

Accepted Answer

A)  Photosynthesis is a catabolic pathway, whereas cellular respiration is an anabolic pathway. 
B)  Water is formed during photosynthesis but broken apart during cellular respiration. 
C)  Both photosynthesis and cellular respiration require electron transport chains. 
D)  Both photosynthesis and cellular respiration produce CO₂ as metabolic end products. 
A)  Photosynthesis is a catabolic pathway, whereas cellular respiration is an anabolic pathway. 
B)  Water is formed during photosynthesis but broken apart during cellular respiration. 
C)  Both photosynthesis and cellular respiration require electron transport chains. 
D)  Both photosynthesis and cellular respiration produce CO₂ as metabolic end products.

Question 8

The illustration below indicates that photosynthesis and cellular respiration are both complementary and balanced.An excess of sugars produced fossil fuels like coal and petroleum; this suggests that in the past,

Accepted Answer

A)  the amount of photosynthesis occurring exceeded the amount of cellular respiration. 
B)  sugars were only one of several products of photosynthesis. 
C)  reduced carbon-rich molecules could be produced independently from the photosynthetic process. 
D)  the energy release from respiration must have exceeded energy use in photosynthesis. 
A)  the amount of photosynthesis occurring exceeded the amount of cellular respiration. 
B)  sugars were only one of several products of photosynthesis. 
C)  reduced carbon-rich molecules could be produced independently from the photosynthetic process. 
D)  the energy release from respiration must have exceeded energy use in photosynthesis.

Question 9

Plants and animals use different energy storage molecules,yet they both use the same mechanism to "burn" their stored energy.How can plants and animals both be successful,even though they "burn" different energy storage molecules?

Accepted Answer

A)  The internal components of plant and animal cells are identical. 
B)  The first law of thermodynamics says that all cells have the same energy transfer system. 
C)  The breaking of the chemical bonds of a storage molecule transfers energy, no matter what molecule is stored. 
D)  All organisms have the same enzymes to catalyze their energy-producing reactions. 
A)  The internal components of plant and animal cells are identical. 
B)  The first law of thermodynamics says that all cells have the same energy transfer system. 
C)  The breaking of the chemical bonds of a storage molecule transfers energy, no matter what molecule is stored. 
D)  All organisms have the same enzymes to catalyze their energy-producing reactions.

The Krebs cycle functions to

As an energy carrier,ATP differs from NADPH in that

What products are produced by the light reactions of photosynthesis? Of these products,which are by-products that are released to the atmosphere? Which products are used within the Calvin cycle?

For each characteristic below,determine if it applies to the light reactions or the light-independent reactions of photosynthesis. -uses carbon dioxide

Determine whether each statement is an analogy for an anabolic pathway or a catabolic pathway. -An individual spends money on a new car.

If the mitochondria of a cell did not produce an inner membrane,the mitochondria would be unable to

Which of the following statements comparing photosynthesis and cellular respiration is accurate?

The illustration below indicates that photosynthesis and cellular respiration are both complementary and balanced.An excess of sugars produced fossil fuels like coal and petroleum; this suggests that in the past,

Plants and animals use different energy storage molecules,yet they both use the same mechanism to "burn" their stored energy.How can plants and animals both be successful,even though they "burn" different energy storage molecules?

The Nature of Science

Evaluating Scientific Claims

Chemistry of Life

Life Is Cellular

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Bacteria and Archaea

Plants, Fungi, and Protists

Animals and Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

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Exam 5: How Cells Work

The Krebs cycle functions to

As an energy carrier,ATP differs from NADPH in that

What products are produced by the light reactions of photosynthesis? Of these products,which are by-products that are released to the atmosphere? Which products are used within the Calvin cycle?

For each characteristic below,determine if it applies to the light reactions or the light-independent reactions of photosynthesis. -uses carbon dioxide

Determine whether each statement is an analogy for an anabolic pathway or a catabolic pathway. -An individual spends money on a new car.

If the mitochondria of a cell did not produce an inner membrane,the mitochondria would be unable to

Which of the following statements comparing photosynthesis and cellular respiration is accurate?

The illustration below indicates that photosynthesis and cellular respiration are both complementary and balanced.An excess of sugars produced fossil fuels like coal and petroleum; this suggests that in the past,

Plants and animals use different energy storage molecules,yet they both use the same mechanism to "burn" their stored energy.How can plants and animals both be successful,even though they "burn" different energy storage molecules?

The Nature of Science

Evaluating Scientific Claims

Chemistry of Life

Life Is Cellular

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Bacteria and Archaea

Plants, Fungi, and Protists

Animals and Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Filters