Module 4 Tough Quiz Questions

Question 1

Which of the following statements regarding the oxidation of pyruvate is false

Answer 1

Each pyruvate has a CO2 added and joins with an NADH

Question 2

Enzymes only work with one substrate

Answer 2

True

Question 3

bacterial production of the enzymes needed for the synthesis of the amino acid tryptophan declines with increasing levels of tryptophan and increases as tryptophan levels decline this is an example of

Answer 3

Feedback inhibition

Question 4

As electrons move through the mitochondrial space

Answer 4

The pH of the intermembrane space changes

Question 5

Which of the following statements regarding the movement of electrons during cellular respiration is true

Answer 5

Oxygen is produced when it accepts electrons and forms water

Question 6

In the electron transport chain the final electron acceptor is

Answer 6

Oxygen

Question 7

The enzyme catalase acts on the substrate

Answer 7

Hydrogen peroxide

Question 8

The citric acid cycle occurs in the

Answer 8

Mitochondrial Matrix

Question 9

Which of the following metabolic pathways is common in aerobic and anaerobic metabolism

Answer 9

Glycolysis

Question 10

Which of the following is a result of glycolysis

Answer 10

The conversion of glucose to two three carbon compounds that are pyruvate

Question 11

Where does the oxidation of pyruvate happen

Answer 11

In the mitochondrial Matrix

Question 12

Which of the following substances increases in abundance during cellular respiration

Answer 12

ATP

Question 13

arsenic is a poison that binds to a molecule needed to build acetyl coenzyme a based on this information which part of cellular respiration would be stopped if arsenic were ingested

Answer 13

The citric acid cycle

Question 14

How do cells capture the energy released by cellular respiration

Answer 14

They produce ATP

Question 15

A storage form of carbohydrates is

Answer 15

Glycogen

Question 16

Oxidative phosphorylation happens in

Answer 16

The inner membrane of the mitochondria

Question 17

At the end of the citric acid cycle most of the energy is stored in

Answer 17

Nadh

Question 18

Nadh pills can be purchased over the counter ender often taken by sufferers of chronic fatigue syndrome. What is the hypothesis about how these pills my benefit a CFS patient.

Answer 18

They would increase the number of electrons provided to the electron transport chain

Question 19

a child is born with a rare disease in which mitochondria are missing from skeletal muscle cells however the muscle still function physicians find that

Answer 19

Muscles contain large amounts of lactate following even mild physical exercise

Question 20

An active site of an enzyme is

Answer 20

The part of enzymes that combine with substrates

Question 21

Which of the following is an example of catabolism

Answer 21

The breakdown of glucose in the cytoplasm in mitochondria

Question 22

To obtain energy from starch and glycogen the body must begin by

Answer 22

Hydrolyzing both starch and glycogen to glucose

Question 23

wood frogs freeze solid during the winter and thawing spring as the freezing progresses blood circulation stops how would you expect cells not being served by the circulatory system to produce ATP during this time and what by product would you expect to build up in cells

Answer 23

Fermentation and lactate

Question 24

The xylem conducts

Answer 24

Water and nutrients

Question 25

The pholem conducts

Answer 25

Sugars