Question 1

What properties do mitochondria share with peroxisomes?

Accepted Answer

A) Both form by splitting from preexisting organelles,using some of the same proteins to accomplish the feat. 
B) Both import preformed proteins from the cytosol. 
C) Both engage in similar types of oxidative metabolism. 
D) At least one enzyme is found in the mitochondria of some mammals and the peroxisomes of others. 
E) All of these are correct. 
A) Both form by splitting from preexisting organelles,using some of the same proteins to accomplish the feat. 
B) Both import preformed proteins from the cytosol. 
C) Both engage in similar types of oxidative metabolism. 
D) At least one enzyme is found in the mitochondria of some mammals and the peroxisomes of others. 
E) All of these are correct.

Question 2

If fatty acids are a more efficient storehouse of energy than glucose or glycogen,why aren't they used immediately to drive muscle contraction?

Accepted Answer

While fatty acids store more energy per

Question 3

The L conformation of ATP synthase catalytic sites ________.

Accepted Answer

A) has a very low affinity for nucleotides 
B) loosely binds AMP and an inorganic phosphate group 
C) has a very low affinity for proteins 
D) binds ATP,ADP and inorganic phosphate groups tightly 
E) loosely binds ADP and an inorganic phosphate group 
A) has a very low affinity for nucleotides 
B) loosely binds AMP and an inorganic phosphate group 
C) has a very low affinity for proteins 
D) binds ATP,ADP and inorganic phosphate groups tightly 
E) loosely binds ADP and an inorganic phosphate group

Question 4

What are some of the diverse activities in which the enzymes found in peroxisomes are involved?

Accepted Answer

These enzymes are involved in the oxidat

Question 5

In addition to driving the synthesis of ATP,what other processes in the mitochondria are driven by the proton-motive force?

Accepted Answer

The proton-motive force drives the uptak

Question 6

It has been shown that one part of ATP synthase rotates relative to another part of the enzyme.This phenomenon is referred to as ________.

Accepted Answer

A) turning catalysis 
B) revolutionary catalysis 
C) rotational catalysis 
D) rotatalysis 
E) revolalysis 
A) turning catalysis 
B) revolutionary catalysis 
C) rotational catalysis 
D) rotatalysis 
E) revolalysis

Question 7

In what ways can pyruvate and NADH be metabolized?

Accepted Answer

A) fermentation,hydrolysis of PGAL 
B) condensation of PGAL and fermentation 
C) aerobic processes using Krebs cycle,fermentation 
D) anaerobic processing using Krebs cycle,fermentation 
E) aerobic processing using Krebs cycle,hydrolysis of PGAL 
A) fermentation,hydrolysis of PGAL 
B) condensation of PGAL and fermentation 
C) aerobic processes using Krebs cycle,fermentation 
D) anaerobic processing using Krebs cycle,fermentation 
E) aerobic processing using Krebs cycle,hydrolysis of PGAL

Question 8

Which of the statements below served as evidence that rotational catalysis occurs in ATP synthase?

Accepted Answer

A) movement was directly observed in the electron microscope 
B) a fluorescently labeled actin filament attached to the enzyme's  subunit was seen to rotate when ATP was added to the enzyme which was fixed to a cover slip 
C) circular dichroism revealed the movement 
D) an inhibitor stopped the enzyme movement 
E) atomic force microscopy showed the movement 
A) movement was directly observed in the electron microscope 
B) a fluorescently labeled actin filament attached to the enzyme's  subunit was seen to rotate when ATP was added to the enzyme which was fixed to a cover slip 
C) circular dichroism revealed the movement 
D) an inhibitor stopped the enzyme movement 
E) atomic force microscopy showed the movement

Question 9

What is defined as a domain of the inner mitochondrial membrane that is present within the interior of the mitochondrion as a series of invaginated membranous sheets?

Accepted Answer

A) inner boundary membrane 
B) outer boundary membrane 
C) cristae 
D) matrix 
E) pseudopodia 
A) inner boundary membrane 
B) outer boundary membrane 
C) cristae 
D) matrix 
E) pseudopodia

Question 10

Which enzyme of the Krebs (TCA)cycle is different from the others with respect to its location and where is it located?

Accepted Answer

A) succinate dehydrogenase,mitochondrial matrix 
B) malate dehydrogenase,mitochondrial matrix 
C) succinate dehydrogenase,inner mitochondrial membrane 
D) malate dehydrogenase,inner mitochondrial membrane 
E) succinate dehydrogenase,intermembrane space 
A) succinate dehydrogenase,mitochondrial matrix 
B) malate dehydrogenase,mitochondrial matrix 
C) succinate dehydrogenase,inner mitochondrial membrane 
D) malate dehydrogenase,inner mitochondrial membrane 
E) succinate dehydrogenase,intermembrane space

Question 11

What happens to the carbons of pyruvate that do not enter the Krebs cycle?

Accepted Answer

A) They are converted to carbohydrates. 
B) They are converted to CO2. 
C) They are converted to glucose. 
D) They are converted to ATP. 
E) They are converted to carbon monoxide (CO). 
A) They are converted to carbohydrates. 
B) They are converted to CO2. 
C) They are converted to glucose. 
D) They are converted to ATP. 
E) They are converted to carbon monoxide (CO).

Question 12

Why is aerobic exercise one of the best ways to lose weight by decreasing the body's fat content?

Accepted Answer

Aerobic exercise is initially fueled by

Question 13

Which person would tend to have a higher proportion of slow-twitch than fast-twitch muscles: a weight lifter,a sprinter,or a long distance runner?

Accepted Answer

The long distance ru

Question 14

What is the final electron acceptor in the electron transport chain?

Accepted Answer

A) water 
B) carbon dioxide 
C) carbon monoxide 
D) hydrogen 
E) oxygen 
A) water 
B) carbon dioxide 
C) carbon monoxide 
D) hydrogen 
E) oxygen

Question 15

What type of electron carrier has a prosthetic group derived from riboflavin?

Accepted Answer

A) flavoproteins 
B) cytochromes 
C) copper atom containing carriers 
D) ubiquinone 
E) iron-sulfur proteins 
A) flavoproteins 
B) cytochromes 
C) copper atom containing carriers 
D) ubiquinone 
E) iron-sulfur proteins

Question 16

What molecule is responsible for conveying 2 carbons from pyruvate to the Krebs cycle?

Accepted Answer

A) Coenzyme G 
B) Coenzyme A 
C) Acetate 
D) pyruvate 
E) oxaloacetate 
A) Coenzyme G 
B) Coenzyme A 
C) Acetate 
D) pyruvate 
E) oxaloacetate

Question 17

Pathways in which H+ ions can "hop" through a channel by exchanging themselves with other protons present along the pathway are called ___________.

Accepted Answer

A) proton-conduction pathways 
B) electrical wires 
C) proton wires 
D) proton conveyer belt 
E) proton-conduction pathways and proton wires 
A) proton-conduction pathways 
B) electrical wires 
C) proton wires 
D) proton conveyer belt 
E) proton-conduction pathways and proton wires

Question 18

Why do your muscles hurt for some time after a large amount of anaerobic exercise?

Accepted Answer

If your muscles have been running anaero

What properties do mitochondria share with peroxisomes?

If fatty acids are a more efficient storehouse of energy than glucose or glycogen,why aren't they used immediately to drive muscle contraction?

The L conformation of ATP synthase catalytic sites ________.

What are some of the diverse activities in which the enzymes found in peroxisomes are involved?

In addition to driving the synthesis of ATP,what other processes in the mitochondria are driven by the proton-motive force?

It has been shown that one part of ATP synthase rotates relative to another part of the enzyme.This phenomenon is referred to as ________.

In what ways can pyruvate and NADH be metabolized?

Which of the statements below served as evidence that rotational catalysis occurs in ATP synthase?

What is defined as a domain of the inner mitochondrial membrane that is present within the interior of the mitochondrion as a series of invaginated membranous sheets?

Which enzyme of the Krebs (TCA)cycle is different from the others with respect to its location and where is it located?

What happens to the carbons of pyruvate that do not enter the Krebs cycle?

Why is aerobic exercise one of the best ways to lose weight by decreasing the body's fat content?

Which person would tend to have a higher proportion of slow-twitch than fast-twitch muscles: a weight lifter,a sprinter,or a long distance runner?

What is the final electron acceptor in the electron transport chain?

What type of electron carrier has a prosthetic group derived from riboflavin?

What molecule is responsible for conveying 2 carbons from pyruvate to the Krebs cycle?

Pathways in which H⁺ ions can "hop" through a channel by exchanging themselves with other protons present along the pathway are called ___________.

Why do your muscles hurt for some time after a large amount of anaerobic exercise?

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics,enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

Exam 5: Aerobic Respiration and the Mitochondrion

What properties do mitochondria share with peroxisomes?

If fatty acids are a more efficient storehouse of energy than glucose or glycogen,why aren't they used immediately to drive muscle contraction?

The L conformation of ATP synthase catalytic sites ________.

What are some of the diverse activities in which the enzymes found in peroxisomes are involved?

In addition to driving the synthesis of ATP,what other processes in the mitochondria are driven by the proton-motive force?

It has been shown that one part of ATP synthase rotates relative to another part of the enzyme.This phenomenon is referred to as ________.

In what ways can pyruvate and NADH be metabolized?

Which of the statements below served as evidence that rotational catalysis occurs in ATP synthase?

What is defined as a domain of the inner mitochondrial membrane that is present within the interior of the mitochondrion as a series of invaginated membranous sheets?

Which enzyme of the Krebs (TCA)cycle is different from the others with respect to its location and where is it located?

What happens to the carbons of pyruvate that do not enter the Krebs cycle?

Why is aerobic exercise one of the best ways to lose weight by decreasing the body's fat content?

Which person would tend to have a higher proportion of slow-twitch than fast-twitch muscles: a weight lifter,a sprinter,or a long distance runner?

What is the final electron acceptor in the electron transport chain?

What type of electron carrier has a prosthetic group derived from riboflavin?

What molecule is responsible for conveying 2 carbons from pyruvate to the Krebs cycle?

Pathways in which H+ ions can "hop" through a channel by exchanging themselves with other protons present along the pathway are called ___________.

Why do your muscles hurt for some time after a large amount of anaerobic exercise?

Introduction to the Study of Cell and Molecular Biology

The Chemical Basis of Life

Bioenergetics,enzymes and Metabolism

The Structure and Function of the Plasma Membrane

Photosynthesis and the Chloroplast

Interactions Between Cells and Their Environment

Cytoplasmic Membrane Systems: Structure, function, and Membrane Trafficking

The Cytoskeleton and Cell Motility

The Nature of the Gene and the Genome

Gene Expression: From Transcription to Translation

Control of Gene Expression

Dna Replication and Repair

Cellular Reproduction

Cell Signaling and Signal Transduction: Communication Between Cells

Cancer

The Immune Response

Techniques in Cell and Molecular Biology

Filters

Pathways in which H⁺ ions can "hop" through a channel by exchanging themselves with other protons present along the pathway are called ___________.