Question 1

Which of the following is common to both fermentation and cellular respiration?

Accepted Answer

A)  Reduction of pyruvate to lactate 
B)  Glycolysis 
C)  Conversion of pyruvate to acetyl CoA 
D)  Krebs cycle 
E)  Electron transport 
A)  Reduction of pyruvate to lactate 
B)  Glycolysis 
C)  Conversion of pyruvate to acetyl CoA 
D)  Krebs cycle 
E)  Electron transport B

Question 2

The term chemiosmosis is associated with which process?

Accepted Answer

A)  The ETC 
B)  Glycolysis 
C)  The Krebs cycle 
D)  Fermentation 
A)  The ETC 
B)  Glycolysis 
C)  The Krebs cycle 
D)  Fermentation A

Question 3

The step in aerobic respiration that produces the most ATP per molecule of glucose is

Accepted Answer

A)  the ETC. 
B)  alcohol fermentation. 
C)  glycolysis. 
D)  the citric acid cycle. 
E)  lactate fermentation. 
A)  the ETC. 
B)  alcohol fermentation. 
C)  glycolysis. 
D)  the citric acid cycle. 
E)  lactate fermentation. A

Question 4

In the mitochondrial matrix reactions, the original carbons in pyruvate

Accepted Answer

A)  form the backbone chain of citric acid. 
B)  form the ring structure of oxaloacetic acid. 
C)  form glucose. 
D)  end up in molecules of CO2. 
E)  are incorporated into molecules of NADH and FADH 2. 
A)  form the backbone chain of citric acid. 
B)  form the ring structure of oxaloacetic acid. 
C)  form glucose. 
D)  end up in molecules of CO2. 
E)  are incorporated into molecules of NADH and FADH 2.

Question 5

Bacteria in our mouths feed off the sugars in foods that we eat. As these bacteria ferment the sugars, they generate a product that can cause dental cavities. What is this product?

Accepted Answer

A)  Hydrochloric acid 
B)  Citric acid 
C)  Pyruvate 
D)  Lactic acid 
E)  Acetyl CoA 
A)  Hydrochloric acid 
B)  Citric acid 
C)  Pyruvate 
D)  Lactic acid 
E)  Acetyl CoA

Question 6

Which of the following metabolic processes directly utilizes oxygen?

Accepted Answer

A)  Glycolysis 
B)  Alcohol fermentation 
C)  Lactic acid fermentation 
D)  ETC 
A)  Glycolysis 
B)  Alcohol fermentation 
C)  Lactic acid fermentation 
D)  ETC

Question 7

Which of the following most closely matches the correct order of the main events of aerobic cellular respiration?

Accepted Answer

A)  Glycolysis, major ATP production, pyruvate enters the mitochondrion, ETC, Krebs cycle 
B)  Major ATP production, pyruvate enters the mitochondrion, Krebs cycle, ETC 
C)  Glycolysis, Krebs cycle, ETC, major ATP production 
D)  Glycolysis, pyruvate enters the mitochondrion, Krebs cycle, major ATP production, ETC 
E)  Krebs cycle, ETC, major ATP production, glycolysis 
A)  Glycolysis, major ATP production, pyruvate enters the mitochondrion, ETC, Krebs cycle 
B)  Major ATP production, pyruvate enters the mitochondrion, Krebs cycle, ETC 
C)  Glycolysis, Krebs cycle, ETC, major ATP production 
D)  Glycolysis, pyruvate enters the mitochondrion, Krebs cycle, major ATP production, ETC 
E)  Krebs cycle, ETC, major ATP production, glycolysis

Question 8

Which of the following statements is TRUE of glycolysis?

Accepted Answer

A)  It produces a net gain of ATP. 
B)  It produces more ATP than does aerobic respiration. 
C)  It can be performed only by bacteria. 
D)  It only takes place under anaerobic conditions. 
E)  It produces a net gain of FADH. 
A)  It produces a net gain of ATP. 
B)  It produces more ATP than does aerobic respiration. 
C)  It can be performed only by bacteria. 
D)  It only takes place under anaerobic conditions. 
E)  It produces a net gain of FADH.

Question 9

What molecule is common to both C3 photosynthesis and the process of glycolysis?

Accepted Answer

A)  Fructose 
B)  Pyruvate 
C)  Acetyl CoA 
D)  NADPH 
E)  G3P 
A)  Fructose 
B)  Pyruvate 
C)  Acetyl CoA 
D)  NADPH 
E)  G3P

Question 10

Which of the following processes involves hydrogen ions moving through ATP synthase channels, generating ATP molecules?

Accepted Answer

A)  Glycolysis 
B)  The Krebs cycle 
C)  The ETC 
A)  Glycolysis 
B)  The Krebs cycle 
C)  The ETC

Question 11

During aerobic respiration in cells, about of the chemical energy in a metabolized glucose molecule is used for ATP production and the rest is released as heat.

Accepted Answer

A)  25% 
B)  40% 
C)  more than 90% 
D)  less than 1% 
A)  25% 
B)  40% 
C)  more than 90% 
D)  less than 1%

Question 12

Which step produces the most ATP?

Accepted Answer

A)  Glycolysis 
B)  The Krebs cycle 
C)  The ETC 
A)  Glycolysis 
B)  The Krebs cycle 
C)  The ETC

Question 13

is the process by which hydrogen ions move via a concentration gradient through ATP-synthesizing enzymes, resulting in the production of ATP.

Accepted Answer

The answer of is the process by which hydrogen ions...

Question 14

The end product of glycolysis is

Accepted Answer

A)  one lactate molecule. 
B)  two citric acid molecules. 
C)  one G3P molecule. 
D)  two pyruvate molecules. 
E)  two NAD+ molecules. 
A)  one lactate molecule. 
B)  two citric acid molecules. 
C)  one G3P molecule. 
D)  two pyruvate molecules. 
E)  two NAD+ molecules.

Question 15

Which event occurs in the fluid portion of the cytoplasm of a cell undergoing glucose metabolism?

Accepted Answer

A)  Krebs cycle 
B)  Acetyl CoA formation 
C)  Electron transport 
D)  Chemiosmosis 
E)  Glycolysis 
A)  Krebs cycle 
B)  Acetyl CoA formation 
C)  Electron transport 
D)  Chemiosmosis 
E)  Glycolysis

Question 16

Most of the ATP produced during cellular respiration is generated in the mitochondrial
after the movement of hydrogen ions through ATP -synthesizing proteins in the inner membrane of the mitochondrion.

Accepted Answer

The answer of Most of the ATP produced during cellular...

Question 17

Chemiosmosis in mitochondria directly results in the synthesis of

Accepted Answer

A)  NADH. 
B)  acetyl CoA. 
C)  H2O. 
D)  FADH2. 
E)  ATP. 
A)  NADH. 
B)  acetyl CoA. 
C)  H2O. 
D)  FADH2. 
E)  ATP.

Question 18

When oxygen is present

Accepted Answer

A)  most animals convert CO2 to glucose. 
B)  most animal cells utilize aerobic cellular respiration. 
C)  most animal cells carry on fermentation and produce lactate. 
D)  two ATP molecules are produced for each glucose molecule. 
E)  most bacteria and yeasts carry on fermentation. 
A)  most animals convert CO2 to glucose. 
B)  most animal cells utilize aerobic cellular respiration. 
C)  most animal cells carry on fermentation and produce lactate. 
D)  two ATP molecules are produced for each glucose molecule. 
E)  most bacteria and yeasts carry on fermentation.

Question 19

Suppose an organism can alternate between aerobic and anaerobic respiration. If it had to use anaerobic respiration exclusively, how many glucose molecules must it break down to generate the same ATP as it would in aerobic respiration?

Accepted Answer

A)  38 
B)  14 
C)  19 
D)  1 
E)  6 
A)  38 
B)  14 
C)  19 
D)  1 
E)  6

Question 20

In the cell, more than half of the energy produced by the metabolic breakdown of glucose is released as and the remaining energy is stored in .

Accepted Answer

The answer of In the cell, more than half of...

Exam 8: Harvesting Energy: Glycolysis and Cellular Respiration

Which of the following is common to both fermentation and cellular respiration?

The term chemiosmosis is associated with which process?

The step in aerobic respiration that produces the most ATP per molecule of glucose is

In the mitochondrial matrix reactions, the original carbons in pyruvate

Bacteria in our mouths feed off the sugars in foods that we eat. As these bacteria ferment the sugars, they generate a product that can cause dental cavities. What is this product?

Which of the following metabolic processes directly utilizes oxygen?

Which of the following most closely matches the correct order of the main events of aerobic cellular respiration?

Which of the following statements is TRUE of glycolysis?

What molecule is common to both C3 photosynthesis and the process of glycolysis?

Which of the following processes involves hydrogen ions moving through ATP synthase channels, generating ATP molecules?

During aerobic respiration in cells, about of the chemical energy in a metabolized glucose molecule is used for ATP production and the rest is released as heat.

Which step produces the most ATP?

is the process by which hydrogen ions move via a concentration gradient through ATP-synthesizing enzymes, resulting in the production of ATP.

The end product of glycolysis is

Which event occurs in the fluid portion of the cytoplasm of a cell undergoing glucose metabolism?

Most of the ATP produced during cellular respiration is generated in the mitochondrial after the movement of hydrogen ions through ATP -synthesizing proteins in the inner membrane of the mitochondrion.

Chemiosmosis in mitochondria directly results in the synthesis of

When oxygen is present

Suppose an organism can alternate between aerobic and anaerobic respiration. If it had to use anaerobic respiration exclusively, how many glucose molecules must it break down to generate the same ATP as it would in aerobic respiration?

In the cell, more than half of the energy produced by the metabolic breakdown of glucose is released as and the remaining energy is stored in .

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

DNA: The Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

Filters