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Chapter 4 OPENSTAX Quiz
 
User
David Stout
Course
LIFE SCIENCE SUMMR-CMP 2020 VC01
Test
Chapter 4 OPENSTAX Quiz
Started
6/6/20 11:36 AM
Submitted
6/6/20 12:20 PM
Due Date
6/9/20 11:00 PM
Status
Completed
Attempt Score
16.67 out of 20 points
Time Elapsed
43 minutes
Results
Displayed
All Answers, Incorrectly Answered
Questions
Question 1
1 out of 1 points
What drives ATP synthesis at the ATP synthase complex?
Answer
s:
a.
 
A proton gradient
b.
 
The electron transport chain
c.
 
Fermentation
d.
 
NADH and FAHD
2
Question 2
0 out of 2 points
A reaction in which the products have more energy than the
reactants are said to be [x]________________
E
ndothermic
Question 3
0 out of 1 points
What is the product of fermentation in human cells?


Page 2
Answer
s:
a.
 
lactate
b.
 
ethyl alcohol
c.
 
carbon dioxide
d.
 
NADH
Question 4
1 out of 1 points
How many molecules of carbon dioxide are produced as the result of the
metabolism of one molecule of glucose?
Answer
s:
a.
 
2
b.
 
3
c.
 
4
d.
 
6
Question 5
1 out of 1 points
In what part of the mitochondria is the electron transport chain located?
Answer
s:
a.
 
Outer membrane
b.
 
Intermembrane space
c.
 
Cristae
d.
 
Matrix
Question 6
1 out of 1 points


Page 3
How many molecules of ATP are eventually produced from each
FADH 
2
 oxidation?
Answers:
a.
 
1
b.
 
2
c.
 
3
d.
 
4
Question 7
1 out of 1 points
When a molecule is reduced, it loses electrons.
Answer
s:
Tru
e
Fals
e
Question 8
1 out of 1 points
How many molecules of ATP are eventually produced from each NADH
oxidation?
Answer
s:
a.
 
1
b.
 
2
c.
 
3
d.
 
4
Question 9
1 out of 1 points
What is the benefit of fermentation in muscle cells when running or exercising?
Answer
s:
a.
 
Conserves oxygen


Page 4
b.
 
Regenerates NAD
+
which keeps glycolysis
going
c.
 
Provides a rapid burst of ATP
d.
 
Both (b) and (c)
Question 10
1 out of 1 points
The estimatd energy yield from glucose metabolism is ___ ATP
from glycolysis and the citric acid cycle, and ___ ATP as a
result of the electron transport chain and ATP synthase.
Answer
s:
a.
 
2;
36
b.
 
2;
34
c.
 
4;
36
d.
 
4;
34
Question 11
0.67 out of 1 points
Which of the following factors would speed up the rate of a
reaction (SELECT ALL THAT APPLY)
Answer
s:
increasing temperature
increasing concentration of
reactants


Page 5
increasing concentration of
products
addition of enzymes
Question 12
1 out of 1 points
In which of the following steps is ATP 
not
 produced?
Answer
s:
a.
 
Glycolysis
b.
 
Preparatory reaction
c.
 
Citric acid cycle
d.
 
Electron transport chain
Question 13
2 out of 2 points
The energy required to initiate a reaction is called
A
CTIVATION__ energy
Question 14
1 out of 1 points
Under what conditions would fermentation occur?
Answer
s:
a.
 
No ATP
b.
 
No oxygen
c.
 
No NADH


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