Question 1

The breakdown of pyruvate in the Krebs cycle results in the release of

Accepted Answer

A) energy. 
B) carbon dioxide. 
C) oxygen. 
D) hydrogen. 
E) all except oxygen. 
A) energy. 
B) carbon dioxide. 
C) oxygen. 
D) hydrogen. 
E) all except oxygen.

Question 2

Because __________ cells have a NAD+ shuttle built into their mitochondria, they deliver 38 ATP molecules per glucose molecule.

Accepted Answer

A) liver 
B) heart 
C) kidney 
D) liver and heart 
E) liver, heart, and kidney 
A) liver 
B) heart 
C) kidney 
D) liver and heart 
E) liver, heart, and kidney

Question 3

The conversion of PGAL to pyruvate is accompanied by

Accepted Answer

A) anaerobic respiration. 
B) photophosphorylation. 
C) the electron transfer chain. 
D) substrate-level phosphorylation. 
E) the Krebs cycle. 
A) anaerobic respiration. 
B) photophosphorylation. 
C) the electron transfer chain. 
D) substrate-level phosphorylation. 
E) the Krebs cycle.

Question 4

Glycolysis

Accepted Answer

A) occurs in the mitochondria. 
B) happens to glucose only. 
C) results in the production of pyruvate. 
D) occurs in the cytoplasm. 
E) results in the production of pyruvate and occurs in the cytoplasm. 
A) occurs in the mitochondria. 
B) happens to glucose only. 
C) results in the production of pyruvate. 
D) occurs in the cytoplasm. 
E) results in the production of pyruvate and occurs in the cytoplasm.

Question 5

Which of the following are symptoms and signs of Luft's Syndrome?

Accepted Answer

A) high oxygen consumption. 
B) constant fever. 
C) flushed skin. 
D) weakness. 
E) all of these. 
A) high oxygen consumption. 
B) constant fever. 
C) flushed skin. 
D) weakness. 
E) all of these.

Question 6

Buttermilk and yogurt are produced by bacteria that form

Accepted Answer

A) ethyl alcohol. 
B) acetaldehyde. 
C) pyruvate. 
D) lactate. 
E) citrate. 
A) ethyl alcohol. 
B) acetaldehyde. 
C) pyruvate. 
D) lactate. 
E) citrate.

Question 7

Intermediates in the breakdown of __________ can be diverted into glycolysis and the Krebs cycle.

Accepted Answer

A) carbohydrates 
B) lipids 
C) proteins 
D) all of these 
E) carbohydrates and lipids only 
A) carbohydrates 
B) lipids 
C) proteins 
D) all of these 
E) carbohydrates and lipids only

Question 8

ATP is to the cell as __________ is(are) to the financial community.

Accepted Answer

A) printed currency 
B) checks 
C) credit 
D) gold reserves 
E) automated tellers 
A) printed currency 
B) checks 
C) credit 
D) gold reserves 
E) automated tellers

Question 9

Bakers use which of the following organisms to make dough rise

Accepted Answer

A) Candida albicans. 
B) Lactobacillus acidophilus. 
C) Saccharomyces cerevisiae. 
D) Pseudomonas aeruginosa. 
E) Giardia lamblia. 
A) Candida albicans. 
B) Lactobacillus acidophilus. 
C) Saccharomyces cerevisiae. 
D) Pseudomonas aeruginosa. 
E) Giardia lamblia.

Question 10

How many passes through the Krebs cycle are required to break down a glucose molecule completely?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 6 
E) 12 
A) 2 
B) 3 
C) 4 
D) 6 
E) 12

Question 11

Which of the following builds up between the two membranes of the mitochondria?

Accepted Answer

A) pyruvate 
B) acetyl-CoA 
C) hydrogen ions 
D) electrons 
E) NADH 
A) pyruvate 
B) acetyl-CoA 
C) hydrogen ions 
D) electrons 
E) NADH

Question 12

ATP is

Accepted Answer

A) the energy currency of a cell. 
B) produced by the destruction of ADP. 
C) produced but not expended in the process of photosynthesis. 
D) produced during the phosphorylation of any organic compound. 
E) none of these. 
A) the energy currency of a cell. 
B) produced by the destruction of ADP. 
C) produced but not expended in the process of photosynthesis. 
D) produced during the phosphorylation of any organic compound. 
E) none of these.

Question 13

Chicken breast is made up of __________ which accounts for why they can't fly long distances.

Accepted Answer

A) slow-twitch fibers 
B) fibrous connective tissue 
C) polymerated red blood cells 
D) fast-twitch fibers 
E) all of these 
A) slow-twitch fibers 
B) fibrous connective tissue 
C) polymerated red blood cells 
D) fast-twitch fibers 
E) all of these

Question 14

The process by which a small amount of the energy in a glucose molecule is released as it is converted into two small organic acid molecules is

Accepted Answer

A) photolysis. 
B) glycolysis. 
C) oxidative phosphorylation. 
D) substrate-level phosphorylation. 
E) the Krebs cycle. 
A) photolysis. 
B) glycolysis. 
C) oxidative phosphorylation. 
D) substrate-level phosphorylation. 
E) the Krebs cycle.

Question 15

The correct operational sequence of the three processes listed below is I.glycolysis
II)electron transport chain
III)Krebs cycle

Accepted Answer

A) I >>> II >>> III. 
B) II >>> I >>> III. 
C) III >>> I >>> II. 
D) II >>> III >>> I. 
E) I >>> III >>> II. 
A) I >>> II >>> III. 
B) II >>> I >>> III. 
C) III >>> I >>> II. 
D) II >>> III >>> I. 
E) I >>> III >>> II.

Question 16

What is the process by which NADH transfers electrons to oxygen?

Accepted Answer

A) glycolysis 
B) acetyl-CoA formation 
C) the Krebs cycle 
D) electron transfer phosphorylation 
E) substrate-level phosphorylation 
A) glycolysis 
B) acetyl-CoA formation 
C) the Krebs cycle 
D) electron transfer phosphorylation 
E) substrate-level phosphorylation

Question 17

Fermentation

Accepted Answer

A) may occur in a muscle under anaerobic conditions. 
B) produces more ATP than is liberated in the hydrogen transfer series. 
C) breaks down glucose in reaction with oxygen. 
D) is restricted to yeasts. 
E) does none of these. 
A) may occur in a muscle under anaerobic conditions. 
B) produces more ATP than is liberated in the hydrogen transfer series. 
C) breaks down glucose in reaction with oxygen. 
D) is restricted to yeasts. 
E) does none of these.

Question 18

The Krebs cycle takes place in the

Accepted Answer

A) ribosomes. 
B) cytoplasm. 
C) nucleus. 
D) mitochondria. 
E) chloroplasts. 
A) ribosomes. 
B) cytoplasm. 
C) nucleus. 
D) mitochondria. 
E) chloroplasts.

Question 19

The main source of energy in the normal human diet is

Accepted Answer

A) fats. 
B) carbohydrates. 
C) proteins. 
D) nucleotides. 
E) steroids. 
A) fats. 
B) carbohydrates. 
C) proteins. 
D) nucleotides. 
E) steroids.

Question 20

The aerobic respiration process ends in what area of the eukaryotic cell?

Accepted Answer

A) photosynthetic 
B) cytoplasm 
C) mitochondria 
D) the Krebs cycle 
E) gap junction 
A) photosynthetic 
B) cytoplasm 
C) mitochondria 
D) the Krebs cycle 
E) gap junction

Exam 8: Energy-Releasing Pathways

The breakdown of pyruvate in the Krebs cycle results in the release of

Because __________ cells have a NAD+ shuttle built into their mitochondria, they deliver 38 ATP molecules per glucose molecule.

The conversion of PGAL to pyruvate is accompanied by

Glycolysis

Which of the following are symptoms and signs of Luft's Syndrome?

Buttermilk and yogurt are produced by bacteria that form

Intermediates in the breakdown of __________ can be diverted into glycolysis and the Krebs cycle.

ATP is to the cell as __________ is(are) to the financial community.

Bakers use which of the following organisms to make dough rise

How many passes through the Krebs cycle are required to break down a glucose molecule completely?

Which of the following builds up between the two membranes of the mitochondria?

ATP is

Chicken breast is made up of __________ which accounts for why they can't fly long distances.

The process by which a small amount of the energy in a glucose molecule is released as it is converted into two small organic acid molecules is

The correct operational sequence of the three processes listed below is I.glycolysis II)electron transport chain III)Krebs cycle

What is the process by which NADH transfers electrons to oxygen?

Fermentation

The Krebs cycle takes place in the

The main source of energy in the normal human diet is

The aerobic respiration process ends in what area of the eukaryotic cell?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

Because __________ cells have a NAD⁺ shuttle built into their mitochondria, they deliver 38 ATP molecules per glucose molecule.