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Cell Membrane Part 1 Concept Review
By John Lundy
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Last updated almost 8 years ago
9 questions
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Note from the author:
A short review focusing on the structure of the cell membrane and diffusion.
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Question 1
1.
Point to/circle/color the following with the indicated colorrs.
Phospholipid bilayer (no color)
Peripheral protein (red)
Integral protein (pink)
Cholesterol (blue)
Fatty acid tails (orange)
Glycoprotein (green)
Phosphate heads (yellow)
Glycolipids (purple)
visibility
View drawing
Question 2
2.
Match
the cell membrane structure or its function with the correct letter from the cell membrane diagram.
A
B
C
D
E
F
G
H
I
Attracts water
Helps maintain flexibility of membrane
Involved in cell-to-cell recognition
Repels water
Make up the bilayer
Help transport certain materials across the cell membrane
Question 3
3.
Which plasma membrane component can be either
found on its surface or embedded in the membrane
structure?
a. protein
b. cholesterol
c. carbohydrate
d. phospholipid
Question 4
4.
What is the primary function of carbohydrates attached
to the exterior of cell membranes?
a. identification of the cell
b. flexibility of the membrane
c. strengthening the membrane
d. channels through membrane
Question 5
5.
The principal force driving movement in diffusion is the
__________.
a. temperature
b. particle size
c. concentration gradient
d. membrane surface area
Question 9
9.
Why does water move through a membrane and how is it able to do so, explain.