Question 1

Alcohol is a by-product of fermentation by yeast.

Accepted Answer

A) True 
 B)False

Question 2

The energy released by electrons as they move through the electron transport chain is used

Accepted Answer

A)  to pump electrons from the thylakoid matrix to the cytosol. 
B)  to pump acetyl CoA into the Krebs cycle. 
C)  to pump protons into the mitochondrial intermembrane space. 
D)  to pump pyruvate into the first reaction of glycolysis. 
A)  to pump electrons from the thylakoid matrix to the cytosol. 
B)  to pump acetyl CoA into the Krebs cycle. 
C)  to pump protons into the mitochondrial intermembrane space. 
D)  to pump pyruvate into the first reaction of glycolysis.

Question 3

The figure below is a diagram of the inner mitochondrial membrane.  
How did the protons (H⁺) in this diagram become concentrated on one side of the membrane?

Accepted Answer

A)  The H+ were pumped across the membrane by the electron transport chain. 
B)  The H+ were released when ATP phosphorylated a membrane protein. 
C)  ATP was used to pump the H+ across the membrane. 
D)  Oxygen must release 2 H+ in the intermembrane space before it can move into the matrix. 
A)  The H+ were pumped across the membrane by the electron transport chain. 
B)  The H+ were released when ATP phosphorylated a membrane protein. 
C)  ATP was used to pump the H+ across the membrane. 
D)  Oxygen must release 2 H+ in the intermembrane space before it can move into the matrix.

Question 4

Although _____ has less energy than other energy carriers, it is more versatile since it can be used in a larger variety of chemical reactions.

Accepted Answer

The answer of Although _____ has less energy than other...

Question 5

Acetyl CoA is a substrate of

Accepted Answer

A)  glycolysis. 
B)  the Krebs cycle. 
C)  the electron transport chain. 
D)  the Calvin cycle. 
A)  glycolysis. 
B)  the Krebs cycle. 
C)  the electron transport chain. 
D)  the Calvin cycle.

Question 6

During the Calvin cycle, the enzyme rubisco combines a ____-carbon compound with CO₂ to form an unstable carbohydrate [the answer is a number].

Accepted Answer

The answer of During the Calvin cycle, the enzyme rubisco...

Question 7

The Krebs cycle produces

Accepted Answer

A)  NADH and carbon dioxide. 
B)  water and carbon dioxide. 
C)  ADP and NADP++. 
D)  acetyl CoA and sugars. 
A)  NADH and carbon dioxide. 
B)  water and carbon dioxide. 
C)  ADP and NADP++. 
D)  acetyl CoA and sugars.

Question 8

The function of the Calvin cycle is to

Accepted Answer

A)  capture energy from sunlight. 
B)  synthesize sugars. 
C)  produce pyruvate. 
D)  break down molecules in order to release energy. 
A)  capture energy from sunlight. 
B)  synthesize sugars. 
C)  produce pyruvate. 
D)  break down molecules in order to release energy.

Question 9

During exercise, the increase in respiration rate and heartbeat speed are driven by the need for

Accepted Answer

A)  oxygen in fermentation. 
B)  carbon dioxide in human lungs. 
C)  oxygen in muscle cell mitochondria. 
D)  oxygen in dark reactions. 
A)  oxygen in fermentation. 
B)  carbon dioxide in human lungs. 
C)  oxygen in muscle cell mitochondria. 
D)  oxygen in dark reactions.

Question 10

The NADH produced by the Krebs cycle donates electrons to the electron transport chain.

Accepted Answer

A) True 
 B)False

Question 11

The energy needed for oxidative phosphorylation comes from

Accepted Answer

A)  ATP 
B)  NADPH 
C)  NADH. 
D)  CO₂ 
A)  ATP 
B)  NADPH 
C)  NADH. 
D)  CO₂

Question 12

The enzyme rubisco is important to the process of

Accepted Answer

A)  catabolism. 
B)  fermentation. 
C)  glycolysis. 
D)  carbon fixation. 
A)  catabolism. 
B)  fermentation. 
C)  glycolysis. 
D)  carbon fixation.

Question 13

Which of the following applies to chloroplasts?

Accepted Answer

A)  They have an intermembrane space and a matrix. 
B)  They have three membrane-enclosed compartments. 
C)  Unlike mitochondria, they lack a stroma. 
D)  They carry out both photosynthesis and respiration. 
A)  They have an intermembrane space and a matrix. 
B)  They have three membrane-enclosed compartments. 
C)  Unlike mitochondria, they lack a stroma. 
D)  They carry out both photosynthesis and respiration.

Question 14

How was the accumulation of O₂ as a by-product of photosynthesis important to the evolution of animals on Earth?

Accepted Answer

Primitive life forms used glycolysis to

Question 15

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

Accepted Answer

A)  Photosynthesis is a catabolic reaction whereas cellular respiration is an anabolic reaction. 
B)  Water is formed during photosynthesis, but broken apart during cellular respiration. 
C)  Both photosynthesis and cellular respiration involve electron transport chains. 
D)  Both photosynthesis and cellular respiration produce CO₂. 
A)  Photosynthesis is a catabolic reaction whereas cellular respiration is an anabolic reaction. 
B)  Water is formed during photosynthesis, but broken apart during cellular respiration. 
C)  Both photosynthesis and cellular respiration involve electron transport chains. 
D)  Both photosynthesis and cellular respiration produce CO₂.

Question 16

The mitochondria of plants contain thylakoids.

Accepted Answer

A) True 
 B)False

Question 17

The process that produces ATP from sugars and fats begins with

Accepted Answer

A)  glycolysis. 
B)  photosynthesis. 
C)  the electron transport chain. 
D)  the Krebs cycle. 
A)  glycolysis. 
B)  photosynthesis. 
C)  the electron transport chain. 
D)  the Krebs cycle.

Question 18

The innermost membrane in a chloroplast is the ___________ membrane.

Accepted Answer

The answer of The innermost membrane in a chloroplast is...

Question 19

Which of the following molecules carryies electrons that will be used to reduce other molecules in an electron transport chain?

Accepted Answer

A)  ATP 
B)  NADH 
C)  CO₂ 
D)  ADP 
A)  ATP 
B)  NADH 
C)  CO₂ 
D)  ADP

Question 20

What is the role of water in photosynthesis?

Accepted Answer

A)  Water provides a phosphate group to ATP. 
B)  Water captures light energy and transfers it to the electron transport chain. 
C)  Water donates electrons to the electron transport chain. 
D)  Water combines with carbon dioxide (CO₂) to make glucose. 
A)  Water provides a phosphate group to ATP. 
B)  Water captures light energy and transfers it to the electron transport chain. 
C)  Water donates electrons to the electron transport chain. 
D)  Water combines with carbon dioxide (CO₂) to make glucose.

Exam 8: Photosynthesis and Cellular Respiration

Alcohol is a by-product of fermentation by yeast.

The energy released by electrons as they move through the electron transport chain is used

The figure below is a diagram of the inner mitochondrial membrane. How did the protons (H⁺) in this diagram become concentrated on one side of the membrane?

Although _____ has less energy than other energy carriers, it is more versatile since it can be used in a larger variety of chemical reactions.

Acetyl CoA is a substrate of

During the Calvin cycle, the enzyme rubisco combines a ____-carbon compound with CO₂ to form an unstable carbohydrate [the answer is a number].

The Krebs cycle produces

The function of the Calvin cycle is to

During exercise, the increase in respiration rate and heartbeat speed are driven by the need for

The NADH produced by the Krebs cycle donates electrons to the electron transport chain.

The energy needed for oxidative phosphorylation comes from

The enzyme rubisco is important to the process of

Which of the following applies to chloroplasts?

How was the accumulation of O₂ as a by-product of photosynthesis important to the evolution of animals on Earth?

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

The mitochondria of plants contain thylakoids.

The process that produces ATP from sugars and fats begins with

The innermost membrane in a chloroplast is the ___________ membrane.

Which of the following molecules carryies electrons that will be used to reduce other molecules in an electron transport chain?

What is the role of water in photosynthesis?

The Nature of Science and the Characteristics of Life

Organizing the Diversity of Life

Major Groups of Living Organisms

Chemical Building Blocks

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy and Enzymes

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

DNA

From Gene to Protein

Control of Gene Expression

DNA Technology

How Evolution Works

Evolution of Populations

Adaptation and Speciation

The Evolutionary History of Life

Maintaining the Internal Environment

Animal Nutrition and Digestion

Gas Exchange

The Circulatory System

Animal Hormones

The Nervous System

Sensing the Environment

Skeletons, Muscles, and Movement

Defenses against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

The Biosphere

Growth of Populations

Interactions among Organisms

Communities of Organisms

Ecosystems

Global Change

Biodiversity and People

Cancer: Cell Division Out of Control

Harnessing the Human Genome

Humans and Evolution

Smoking--Beyond Lung Cancer

Feeding a Hungry Planet

Building a Sustainable Society

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