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. D

Question 2

Explain how an increase in body temperature may affect the activity of enzymes with human cells.

Accepted Answer

Enzymes are typically proteins,and the shape of proteins is affected by an increase in temperature.In the case of enzymes,an increase in temperature may change the shape of the enzyme and affect its ability to catalyze chemical reactions.The function of an enzyme is based on the shape of the enzyme.

Question 3

Humans store sugars in the form of glycogen.Glycogen is made by linking many glucose molecules together.This process is ________.

Accepted Answer

anabolic dehydration synthesis condensation reaction

Question 4

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 5

Chemical reactions that break down lipids are

Accepted Answer

A)  catabolic. 
B)  anabolic. 
C)  metabolic. 
D)  respiration. 
A)  catabolic. 
B)  anabolic. 
C)  metabolic. 
D)  respiration.

Question 6

Is the burning of wood most representative of anabolism or catabolism? Defend your answer.

Accepted Answer

Burning wood releases energy a

Question 7

Carbon dioxide is one product of a metabolic process,which occurs in both plants and animals.This process is called

Accepted Answer

A)  catalysis. 
B)  glycolysis. 
C)  respiration. 
D)  photosynthesis. 
A)  catalysis. 
B)  glycolysis. 
C)  respiration. 
D)  photosynthesis.

Question 8

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 9

What type of reactions release energy by breaking down complex molecules?

Accepted Answer

A)  catabolic 
B)  anabolic 
C)  photosynthetic 
D)  dehydration synthesis 
A)  catabolic 
B)  anabolic 
C)  photosynthetic 
D)  dehydration synthesis

Question 10

The sequential reaction pathway A $\rightarrow$ B $\rightarrow$ C $\rightarrow$ D is dependent on enzymes for each separate step.The enzyme that has "C" as a substrate becomes nonfunctional.Explain how this affects the metabolic pathway shown.

Accepted Answer

A will still be converted to B

Question 11

Defend the following statement by discussing the importance of the products of photosynthesis:
"The evolution of photosynthesis was an essential event for the evolution of life as we know it."

Accepted Answer

Photosynthesis produces oxygen,which all

Question 12

In the reaction C6H12O6 + 6 O2 $\rightarrow$ 6 CO2 + 6 H2O,the 6 CO2 molecules are examples of

Accepted Answer

A)  substrates. 
B)  products. 
C)  enzymes. 
D)  reactants. 
A)  substrates. 
B)  products. 
C)  enzymes. 
D)  reactants.

Question 13

A given enzyme

Accepted Answer

A)  can be used for many different kinds of chemical reactions. 
B)  is permanently changed during a chemical reaction. 
C)  has a special site where the products bind before the reaction begins. 
D)  increases the rate of a particular reaction. 
A)  can be used for many different kinds of chemical reactions. 
B)  is permanently changed during a chemical reaction. 
C)  has a special site where the products bind before the reaction begins. 
D)  increases the rate of a particular reaction.

Question 14

The capture and use of energy by living organisms involves numerous chemical reactions.Collectively these processes are known as

Accepted Answer

A)  metabolism. 
B)  respiration. 
C)  anabolic reactions. 
D)  catabolic reactions. 
A)  metabolism. 
B)  respiration. 
C)  anabolic reactions. 
D)  catabolic reactions.

Question 15

In photosynthesis,the carbon used to make sugars is

Accepted Answer

A)  provided by enzymes. 
B)  provided by carbon dioxide. 
C)  extracted from DNA. 
D)  oxidized to make sugars. 
A)  provided by enzymes. 
B)  provided by carbon dioxide. 
C)  extracted from DNA. 
D)  oxidized to make sugars.

Question 16

List the energy carriers in a cell.Which of the energy carriers carries the most energy?

Accepted Answer

The energy carriers

Question 17

Which of the following statements describe the function of the light reaction in photosynthesis?

Accepted Answer

A)  As electrons move through the light reaction,they release energy that is used to concentrate protons in the thylakoid. 
B)  As electrons move through the light reaction,they catalyze the formation of ATP. 
C)  The light reaction releases CO2 from glucose. 
D)  The light reaction captures and stores the electrons given off by NADPH. 
A)  As electrons move through the light reaction,they release energy that is used to concentrate protons in the thylakoid. 
B)  As electrons move through the light reaction,they catalyze the formation of ATP. 
C)  The light reaction releases CO2 from glucose. 
D)  The light reaction captures and stores the electrons given off by NADPH.

Question 18

List the three stages of cellular respiration.If the mitochondria in a eukaryotic cell are damaged,which of the three stages of cellular respiration would be impacted?

Accepted Answer

The three stages of cellular respiration

Question 19

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.

Question 20

The events of the Calvin cycle

Accepted Answer

A)  use ATP and NADPH to produce sugars. 
B)  move electrons from photosystem II to photosystem I. 
C)  move light-energized electrons to photosystem II. 
D)  absorb light from the light reactions. 
A)  use ATP and NADPH to produce sugars. 
B)  move electrons from photosystem II to photosystem I. 
C)  move light-energized electrons to photosystem II. 
D)  absorb light from the light reactions.

The Krebs cycle functions to

Explain how an increase in body temperature may affect the activity of enzymes with human cells.

Humans store sugars in the form of glycogen.Glycogen is made by linking many glucose molecules together.This process is ________.

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?

Chemical reactions that break down lipids are

Is the burning of wood most representative of anabolism or catabolism? Defend your answer.

Carbon dioxide is one product of a metabolic process,which occurs in both plants and animals.This process is called

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

What type of reactions release energy by breaking down complex molecules?

The sequential reaction pathway A $\rightarrow$ B $\rightarrow$ C $\rightarrow$ D is dependent on enzymes for each separate step.The enzyme that has "C" as a substrate becomes nonfunctional.Explain how this affects the metabolic pathway shown.

Defend the following statement by discussing the importance of the products of photosynthesis: "The evolution of photosynthesis was an essential event for the evolution of life as we know it."

In the reaction C₆H₁₂O₆ + 6 O₂ $\rightarrow$ 6 CO₂ + 6 H₂O,the 6 CO₂ molecules are examples of

A given enzyme

The capture and use of energy by living organisms involves numerous chemical reactions.Collectively these processes are known as

In photosynthesis,the carbon used to make sugars is

List the energy carriers in a cell.Which of the energy carriers carries the most energy?

Which of the following statements describe the function of the light reaction in photosynthesis?

List the three stages of cellular respiration.If the mitochondria in a eukaryotic cell are damaged,which of the three stages of cellular respiration would be impacted?

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 events of the Calvin cycle

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

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Exam 5: How Cells Work

The Krebs cycle functions to

Explain how an increase in body temperature may affect the activity of enzymes with human cells.

Humans store sugars in the form of glycogen.Glycogen is made by linking many glucose molecules together.This process is ________.

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?

Chemical reactions that break down lipids are

Is the burning of wood most representative of anabolism or catabolism? Defend your answer.

Carbon dioxide is one product of a metabolic process,which occurs in both plants and animals.This process is called

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

What type of reactions release energy by breaking down complex molecules?

The sequential reaction pathway A →\rightarrow→ B →\rightarrow→ C →\rightarrow→ D is dependent on enzymes for each separate step.The enzyme that has "C" as a substrate becomes nonfunctional.Explain how this affects the metabolic pathway shown.

Defend the following statement by discussing the importance of the products of photosynthesis: "The evolution of photosynthesis was an essential event for the evolution of life as we know it."

In the reaction C6H12O6 + 6 O2 →\rightarrow→ 6 CO2 + 6 H2O,the 6 CO2 molecules are examples of

A given enzyme

The capture and use of energy by living organisms involves numerous chemical reactions.Collectively these processes are known as

In photosynthesis,the carbon used to make sugars is

List the energy carriers in a cell.Which of the energy carriers carries the most energy?

Which of the following statements describe the function of the light reaction in photosynthesis?

List the three stages of cellular respiration.If the mitochondria in a eukaryotic cell are damaged,which of the three stages of cellular respiration would be impacted?

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 events of the Calvin cycle

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

Filters

The sequential reaction pathway A $\rightarrow$ B $\rightarrow$ C $\rightarrow$ D is dependent on enzymes for each separate step.The enzyme that has "C" as a substrate becomes nonfunctional.Explain how this affects the metabolic pathway shown.

In the reaction C₆H₁₂O₆ + 6 O₂ $\rightarrow$ 6 CO₂ + 6 H₂O,the 6 CO₂ molecules are examples of