Cell Membrane Quiz_do

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Started: Submitted: Score: Points: Points: 10 out of 10 Points: 10 out of 10 Points: 10 out of 10 From: null <Saved by Internet Explorer 11> Date: Wed, 16 Sep 2015 09 54 30 -0500 To: CC: 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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