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WorksheetsCell Membrane
Total questions: 11
Worksheet time: 7mins
Name
Class
Date
1.
What is NOT TRUE about the cell membrane
a)
It controls what enters and leaves the cell
b)
Semipermeable
c)
Phospholipid bilayer
d)
Contains digestive enzymes
2.
What does "bilayer" mean?
a)
one layer
b)
two layers
c)
laminated
d)
bilateral
3.
What is embedded in the phospholipid bilayer?
a)
proteins
b)
salt
c)
water
4.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads
d)
lipids
5.
What are the carbohydrates in the cell membrane for?
a)
to form channels and pumps
b)
to help cells identify one another
c)
to make the membrane strong
6.
This is a balance that organisms maintain through self-regulating adjustments
a)
bilayer
b)
homeostasis
c)
secretions
7.
True or false: Regulating what enters and leaves the cell helps the cell maintain homeostasis.
a)
True
b)
False
8.
True or false: Some things are not allowed to enter the cell at all.
a)
True
b)
False
9.
The cell is an _____ system. It requires the constant inflow of matter and energy and outflow of waste.
a)
closed
b)
open
c)
false
d)
circulatory
10.
True or false: The cell has no control over the speed of items entering and leaving its membrane.
a)
True
b)
False
11.
Hypertonic solutions...
a)
water moves from hypotonic to hypertonic
b)
water moves from hypertonic to hypotonic
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