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Subject:Cell Membrane Quiz
Cell Membrane Quiz
Attempt 1 of 2
09/06/2015 11:13 AM EDT
09/06/2015 11:23 AM EDT
100%
80 out of 80
Question 1
A set of erythrocytes is placed in a beaker of 0.9% NaCl. Nothing appears to
happen to the cells. Why?
A.
0.9% NaCl is hypertonic to the cells.
B.
0.9% NaCl is iostonic to the cells.
C.
0.9% NaCl is hypotonic to the cells.
D.
water has not moved at all.
E.
Sodium blocks the movement of water.
Feedback
Correct. In fact, 0.9% NaCl is the standard isotonic saline in IV solutions.
Question 2
What is the role of carbohydrates in the plasma membrane?
A.
adhesion
B.
cellular identification
C.
transport materials across the membrane
D.
help maintain fluidity
Feedback
Correct. carbohydrates are involved in cellular identification.
Question 3
Which of the following can cross the cell’s plasma membrane without the
assistance of protein transporters?
Select all that apply.
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