Quiz: The Cell Cycle and Cell
Junctions/Extracellular Matrix
Instructions
The quiz:
Covers the Learn material from Module 7: Week 7 – Module 8: Week 8.
Contains 50 multiple-choice questions.
Is limited to 75 minutes.
Allows 1 attempt.
Is worth 125 points.
Submit this assignment by 11:59 p.m. (ET) on Friday of Module 8: Week 8.
Attempt History
Attempt Time Score
LATEST Attempt 1 59 minutes 122.5 out of 125
Correct answers are hidden.
Score for this quiz: 122.5 out of 125
Submitted May 7 at 12:25am
This attempt took 59 minutes.
Question 1
2..5 pts
Consider two kinesin motor proteins at the mitotic spindle midzone: kinesin-5 is a tetrameric
motor that walks toward the plus end of both microtubules to which it is attached via its motor
domains; kinesin-14, on the other hand, walks toward the minus end of one microtubule while it
is attached to another microtubule via its tail domain. How do these motors affect the length of
the spindle?
They both work to shorten the spindle.
Kinesin-5 works to shorten the spindle whereas kinesin-14 works to lengthen it.
Kinesin-5 works to lengthen the spindle whereas kinesin-14 works to shorten it.
They both work to lengthen the spindle.
,Question 2
2..5 pts
Which of the following simplified diagrams better shows the changes in the concentrations of
three major cyclin–Cdk complexes (G1/S-Cdk, S-Cdk, and M-Cdk) in the cell in different stages
of the cell cycle?
A
B
C
D
E
, Question 3
2..5 pts
In the following schematic diagram of a simple columnar epithelium lining the digestive tract,
indicate which position (A to F) along the basal–apical axis better corresponds to each of the
following features. Your answer would be a six-letter string composed of letters A to F only, e.g.
FEDABC.
( ) Basal lamina
( ) Cell apex
( ) Adherens junctions
( ) Gap junctions
( ) Hemidesmosomes
( ) Tight junctions
ABCEDF
BACDEF
DFECAB
Junctions/Extracellular Matrix
Instructions
The quiz:
Covers the Learn material from Module 7: Week 7 – Module 8: Week 8.
Contains 50 multiple-choice questions.
Is limited to 75 minutes.
Allows 1 attempt.
Is worth 125 points.
Submit this assignment by 11:59 p.m. (ET) on Friday of Module 8: Week 8.
Attempt History
Attempt Time Score
LATEST Attempt 1 59 minutes 122.5 out of 125
Correct answers are hidden.
Score for this quiz: 122.5 out of 125
Submitted May 7 at 12:25am
This attempt took 59 minutes.
Question 1
2..5 pts
Consider two kinesin motor proteins at the mitotic spindle midzone: kinesin-5 is a tetrameric
motor that walks toward the plus end of both microtubules to which it is attached via its motor
domains; kinesin-14, on the other hand, walks toward the minus end of one microtubule while it
is attached to another microtubule via its tail domain. How do these motors affect the length of
the spindle?
They both work to shorten the spindle.
Kinesin-5 works to shorten the spindle whereas kinesin-14 works to lengthen it.
Kinesin-5 works to lengthen the spindle whereas kinesin-14 works to shorten it.
They both work to lengthen the spindle.
,Question 2
2..5 pts
Which of the following simplified diagrams better shows the changes in the concentrations of
three major cyclin–Cdk complexes (G1/S-Cdk, S-Cdk, and M-Cdk) in the cell in different stages
of the cell cycle?
A
B
C
D
E
, Question 3
2..5 pts
In the following schematic diagram of a simple columnar epithelium lining the digestive tract,
indicate which position (A to F) along the basal–apical axis better corresponds to each of the
following features. Your answer would be a six-letter string composed of letters A to F only, e.g.
FEDABC.
( ) Basal lamina
( ) Cell apex
( ) Adherens junctions
( ) Gap junctions
( ) Hemidesmosomes
( ) Tight junctions
ABCEDF
BACDEF
DFECAB
