Question 1

When glucose is the fuel source,what is the correct sequence of stages in cellular respiration?

Accepted Answer

A) glycolysis, Krebs cycle, electron transport 
B) electron transport, Krebs cycle, glycolysis 
C) Krebs cycle, glycolysis, electron transport 
D) electron transport, glycolysis, Krebs cycle 
E) Krebs cycle, electron transport, glycolysis 
A) glycolysis, Krebs cycle, electron transport 
B) electron transport, Krebs cycle, glycolysis 
C) Krebs cycle, glycolysis, electron transport 
D) electron transport, glycolysis, Krebs cycle 
E) Krebs cycle, electron transport, glycolysis A

Question 2

Refer to the figure below, and then answer the question that follows.
  
-Which stage or stages of aerobic respiration require both NAD⁺ and ADP as reactants?

Accepted Answer

A) glycolysis 
B) the Krebs cycle 
C) the electron transport chain 
D) the Krebs cycle and the electron transport chain 
E) glycolysis and the Krebs cycle 
A) glycolysis 
B) the Krebs cycle 
C) the electron transport chain 
D) the Krebs cycle and the electron transport chain 
E) glycolysis and the Krebs cycle E

Question 3

During cellular respiration,what molecule collects the majority of the electrons from the food that we eat?

Accepted Answer

A) CO₂ 
B) FAD⁺ 
C) NAD⁺ 
D) glucose 
E) ATP 
A) CO₂ 
B) FAD⁺ 
C) NAD⁺ 
D) glucose 
E) ATP C

Question 4

During cellular respiration:

Accepted Answer

A) glucose is reduced and oxygen is oxidized. 
B) glucose is oxidized and oxygen is reduced. 
C) oxygen oxidizes glucose directly. 
D) both glucose and oxygen get reduced. 
A) glucose is reduced and oxygen is oxidized. 
B) glucose is oxidized and oxygen is reduced. 
C) oxygen oxidizes glucose directly. 
D) both glucose and oxygen get reduced.

Question 5

The three main products of glycolysis are:

Accepted Answer

A) ATP, NAD⁺, and CO₂. 
B) ATP, pyruvic acid, and CO₂. 
C) ATP, NADH, and CO₂. 
D) ATP. NADH, and pyruvic acid. 
E) NAD⁺, pyruvic acid, and CO₂. 
A) ATP, NAD⁺, and CO₂. 
B) ATP, pyruvic acid, and CO₂. 
C) ATP, NADH, and CO₂. 
D) ATP. NADH, and pyruvic acid. 
E) NAD⁺, pyruvic acid, and CO₂.

Question 6

Electrons lose energy as they pass down the electron transport chain.What is this energy used for?

Accepted Answer

A) to power hydrogen ion pumps 
B) to link oxygen to hydrogen ions 
C) to power water pumps 
D) to directly power ATP synthase 
A) to power hydrogen ion pumps 
B) to link oxygen to hydrogen ions 
C) to power water pumps 
D) to directly power ATP synthase

Question 7

The Krebs cycle extracts most of the energy in a glucose molecule and stores it in:

Accepted Answer

A) pyruvic acid. 
B) ATP. 
C) CO₂. 
D) NADH. 
E) O₂. 
A) pyruvic acid. 
B) ATP. 
C) CO₂. 
D) NADH. 
E) O₂.

Question 8

There is an energy investment step needed to get glycolysis started,requiring the use of ________ ATPs.

Accepted Answer

A) zero 
B) four 
C) two 
D) three 
E) one 
A) zero 
B) four 
C) two 
D) three 
E) one

Question 9

What does oxygen allow humans to do?

Accepted Answer

A) breathe 
B) produce food 
C) digest food 
D) produce ATP from food 
A) breathe 
B) produce food 
C) digest food 
D) produce ATP from food

Question 10

Adding phosphate to ADP to form ATP requires an input of energy.

Accepted Answer

A) True 
 B)False

Question 11

During glycolysis,a glucose molecule will be split into two,three-carbon ________ molecules.

Accepted Answer

A) acetyl CoA 
B) pyruvic acid 
C) ATP 
D) oxaloacetatic acid 
A) acetyl CoA 
B) pyruvic acid 
C) ATP 
D) oxaloacetatic acid

Question 12

The enzyme that creates ATP during electron transport is called:

Accepted Answer

A) ADP phosphotransferase. 
B) ATP creatase. 
C) ATP polymerase. 
D) ATP synthase. 
A) ADP phosphotransferase. 
B) ATP creatase. 
C) ATP polymerase. 
D) ATP synthase.

Question 13

How many NADH are produced in the Krebs cycle for each glucose molecule used?

Accepted Answer

A) one 
B) three 
C) six 
D) eight 
A) one 
B) three 
C) six 
D) eight

Question 14

Match between columns
                        Premises: The first molecule produced during the Krebs cycle
The last step of the Krebs cycle produces this
Combines with oxaloacetic acid in the first step of the Krebs cycle
Combines with pyruvic acid in an intermediate step
Carries electrons away from the Krebs cycle
A three-carbon molecule that gets shuttled into the mitochondria

Accepted Answer

The Answer of citric acid and pyruvic acid and oxaloacetic is...

Question 15

The electron transport chain occurs in the ________ of the mitochondria.

Accepted Answer

The answer of The electron transport chain occurs in the...

Question 16

________ means "sugar splitting."

Accepted Answer

The answer of ________ means "sugar splitting."...

Question 17

When NADH donates its electrons to the electron transport chain,which of the following is true?

Accepted Answer

A) NADH is reduced to NAD⁺. 
B) NADH is oxidized to NADH₂. 
C) NADH is reduced to NADH₂. 
D) NADH is oxidized to NAD⁺. 
A) NADH is reduced to NAD⁺. 
B) NADH is oxidized to NADH₂. 
C) NADH is reduced to NADH₂. 
D) NADH is oxidized to NAD⁺.

Question 18

Which of the following statements concerning the electron transport chain is false?

Accepted Answer

A) The final electron acceptor is oxygen. 
B) Each NADH yields three ATP molecules. 
C) Each FADH₂ yields two ATP molecules. 
D) The electron transport chain will work whether oxygen is present or not. 
A) The final electron acceptor is oxygen. 
B) Each NADH yields three ATP molecules. 
C) Each FADH₂ yields two ATP molecules. 
D) The electron transport chain will work whether oxygen is present or not.

Question 19

The Krebs cycle must turn six times for each glucose molecule.

Accepted Answer

A) True 
 B)False

Question 20

Organisms exist that can survive using only glycolysis.

Accepted Answer

A) True 
 B)False

Exam 7: Vital Harvest: Deriving Energy From Food

When glucose is the fuel source,what is the correct sequence of stages in cellular respiration?

Refer to the figure below, and then answer the question that follows. -Which stage or stages of aerobic respiration require both NAD⁺ and ADP as reactants?

During cellular respiration,what molecule collects the majority of the electrons from the food that we eat?

During cellular respiration:

The three main products of glycolysis are:

Electrons lose energy as they pass down the electron transport chain.What is this energy used for?

The Krebs cycle extracts most of the energy in a glucose molecule and stores it in:

There is an energy investment step needed to get glycolysis started,requiring the use of ________ ATPs.

What does oxygen allow humans to do?

Adding phosphate to ADP to form ATP requires an input of energy.

During glycolysis,a glucose molecule will be split into two,three-carbon ________ molecules.

The enzyme that creates ATP during electron transport is called:

How many NADH are produced in the Krebs cycle for each glucose molecule used?

The electron transport chain occurs in the ________ of the mitochondria.

________ means "sugar splitting."

When NADH donates its electrons to the electron transport chain,which of the following is true?

Which of the following statements concerning the electron transport chain is false?

The Krebs cycle must turn six times for each glucose molecule.

Organisms exist that can survive using only glycolysis.

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

Filters