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Exam 2 - Corso - ETC

Total questions: 14

Worksheet time: 1hrs 10mins

Name
Class
Date
1.

What reduced molecule is oxidized at site I

a)

ADP

b)

NADH

c)

FADH2

d)

ATP

2.

Which of the following toxins are known to inhibit site I?

a)

oligomycin

b)

dinitrophenol (DNP)

c)

cyanide

d)

rotenone

3.

What class of drugs are known to inhibit the synthesis of ubiquinone?

a)

beta-blockers

b)

statins

c)

steroids

d)

sulfonylureas

4.

What drug is known to inhibit Site III

a)

Antimycin A

b)

aspirin

c)

atractyloside

d)

DNP

5.

Site IV is inhibited by

a)

DNP

b)

rotenone

c)

cyanide

d)

oligomycin

6.

Which toxin inhibits Site I?

a)

antimycin A

b)

cyanide

c)

rotenone

d)

dinitrophenol

7.

Which toxin inhibits Site III?

a)

antimycin A

b)

cyanide

c)

rotenone

d)

dinitrophenol

8.

Which toxin inhibits Site IV?

a)

antimycin A

b)

cyanide

c)

rotenone

d)

dinitrophenol

9.

Which toxin inhibits ATP synthase?

a)

oligomycin

b)

cyanide

c)

actractyloside

d)

dinitrophenol

10.

Which toxin inhibits the ATP/ADP antiporter?

a)

oligomycin

b)

cyanide

c)

actractyloside

d)

dinitrophenol

11.

Which toxin is a proton gradient uncoupling agent?

a)

oligomycin

b)

cyanide

c)

actractyloside

d)

dinitrophenol

12.

Where is the SPECIFIC location of the ETC?

a)

mitochondria

b)

cytoplasm

c)

inner mitochondrial membrane

d)

cell

13.

What does FMN do?

a)

create e-

b)

take 2 e- and 2 H+ from NADH and passes 2 e- to FeS clusters

c)

nothing

d)

takes 2 e- from CoQ

14.

What is the role of FeS clusters? (select all that apply)

a)

electron transport

b)

creating a "current" through the molecule

c)

delivering e- to CoQ