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Cell Membrane Review HBIO 2023

Total questions: 62

Worksheet time: 56mins

Name
Class
Date
1.
Lipid heads are...
a)
Hydrophobic
b)
Hydrophilic
2.
What does hydrophobic mean?
a)
Likes water as a friend
b)
Dissolves in water
c)
Loves water
d)
Hates water
3.
When looking at the cell membrane, where are the lipid heads located?
a)
Floating between bilayer levels
b)
Outer part of the bilayer
c)
Inner part of the bilayer
d)
Located at different parts throughout the bilayer
4.
When looking at the cell membrane, where are the lipid tails located?
a)
Inner part of the bilayer
b)
Outer part of the bilayer
c)
At the end of the bilayer
d)
Goes through each end of the bilayer
5.
What does the "fluid mosaic model" mean about the cell membrane?
a)
It can dissolve into fluid.
b)
The cell is mostly made of mosaic molecules.
c)
It looks like a flexible pattern.
d)
Somebody else should name these things.
6.
Which of the following is responsible for getting complex molecules across the cell membrane?
a)
Lipids
b)
Carbs
c)
Proteins
d)
Nucleic Acids
7.
Both side of a selectively- permeable membrane are equal. The sides are ______.
a)
isotonic
b)
hypertonic
c)
hypotonic
8.
 If a cell containing 5% salt is placed into a glass of water with 20% salt, the water is _______ compared to the cell.
a)
hypertonic-
b)
hypotonic
c)
isotonic
9.
This egg has shrunk, what type of solution was it placed in?
a)
hypotonic solution
b)
hypertonic solution
c)
isotonic solution
d)
active transport
10.
this picture show the molecules getting help across the membrane.  the vocabulary word that best describes this is
a)
diffusion
b)
osmosis
c)
facilitated diffusion
d)
active transport
11.
An ISOTONIC solution has a(n) ______________ concentration of solute (dissolved stuff) than inside the cell.
a)
lower
b)
equal
c)
higher
12.
A HYPOTONIC solution has a ______________ concentration of solute (dissolved stuff) than inside the cell.
a)
lower
b)
equal
c)
higher
13.
If a cell is placed in a HYPOTONIC solution, water will move _________ of the cell, causing it to ___________.
a)
into, swell
b)
out of, shrivel
c)
in and out of the cell, stay the same
14.
This type of transport requires ENERGY and goes from LOW to HIGH concentration?
a)
Active
b)
Cellular
c)
Passive
15.
Osmosis is the diffusion of _____ across a selectively permeable membrane.
a)
food
b)
air
c)
water
d)
oxygen
16.
During diffusion
a)
substances (things) moves from high to low concentration
b)
water moves when energy is used
c)
large or oddly shaped molecules move across a cell membrane
d)
water moves from high to low concentration
17.
Which way will the water molecules move during osmosis?
a)
Out of the cell, so the cell shrinks.
b)
Out of the cell, so the cell swells.
c)
Into the cell, so the cell shrinks.
d)
Into the cell, so the cell swells.
18.
The cell below is in a _________ solution.
a)
Hypotonic
b)
Hypertonic
c)
Isotonic
19.
The cell below is in a _____________ solution.
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
20.
Which cell is placed into a hypotonic environment? 
a)
A
b)
B
c)
C
d)
D
21.
What type of solution is this cell in?
a)
Isotonic
b)
Hypertonic
c)
Hypotonic
d)
diffused
22.
In passive transport, molecules move from an area of __________ concentration to an area of __________ concentraiton
a)
high, low
b)
low, high
c)
water, salt
d)
active, passive
23.
What type of transport is this?
a)
Endocytosis
b)
Facilitated Diffusion
c)
Active Transport Pump
d)
Osmosis
24.
What is NOT TRUE about the cell membrane
a)

It controls what enters and leaves the cell

b)

Semipermeable

c)

Phospholipid bilayer

d)

Some small cells don't have a cell membrane

25.
What does "bilayer" mean?
a)
one layer
b)
two layers
c)
laminated
d)
bilateral
26.
Most of the cell membrane is made of...
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic acids
27.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads 
d)
lipids
28.
Hydrophilic means...
a)
water-loving
b)
water-fearing
c)
nonpolar
d)
lipid soluble
29.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A 
30.
Hydrophilic portion of cell membrane?
a)
A
b)
C
c)
D
d)
E 
31.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
32.
_____________ is the gatekeeper of the cell. 
a)
nucleus
b)
nuceolus
c)
mitochondria
d)
cell membrane
33.
How does a cell maintain homeostasis?
a)
Regulates what enters and leaves the cell
b)
Flexibility
c)
Protective barrier
d)
Structure and support
34.
What is another term for "selectively permeable"?
a)
Porous
b)
Acts like a switch
c)
Permanent
d)
Semipermeable
35.
Lipid tails are...
a)
Nonpolar
b)
Polar
36.
True or false:  Some things are not allowed to enter the cell at all. 
a)
True
b)
False
37.
The function of the cell membrane is....
a)
to regulate what enters and leaves the cell.
b)
fight bacteria and viruses that enter the cell.
c)
provide rigid support 
d)
make sure each cell can move
38.
Which compounds can move through the cell membrane by simple diffusion?
a)
Amino Acids
b)
Sugar/Glucose
c)
CO2 and O2
d)
Water
39.
Which compound(s) can move through the protein channels in the cell membrane by facilitated diffusion?
a)
H2O
b)
CO2
c)
O2
40.
Why would a cell need to move compounds using active transport?
a)
Transporting from high to low concentrations
b)
transporting from low to high concentrations
41.

Identify cholesterol molecule

a)

structure a

b)

structure b

c)

structure h

d)

structure i

42.

Plasma membranes are selectively permeable. This means

a)

anything can pass in and out

b)

the membrane regulates the passage of the material in and out of the cell

c)

glucose cannot enter the cell

d)

cholesterol cannot enter

43.

A major function of glycoproteins and glycolipids (protein with carbohydrate branched chain) in the membrane is to

a)

glue cells together to form tissues

b)

allow cells to identify each other

c)

attach membrane to cytoskeleton

d)

help retain shape

44.

When doctors perform organ transplants, they choose a donor tissue match. Which component is being matched?

a)

membrane phospholipids

b)

cytoskeleton

c)

cell surface carbohydrates

d)

cholesterol

45.

Which of the following allows water to move faster across cell membranes?

a)

aquaporins

b)

ATP

c)

peripheral proteins

d)

the sodium-potassium pump

46.

Bringing molecules into the cell is called

a)

endocytosis

b)

exocytosis

47.

When a vesicle leaves the golgi bodies and fuses with the membrane to release proteins outside of the cell, this is called

a)

endocytosis

b)

exocytosis

48.

All of the following are types of active transport except

a)

protein pumps

b)

exocytosis

c)

endocytosis

d)

facilitated diffusion

49.

Which of the following when you move molecules from a high to low concentration (down gradient) with a protein?

a)

protein pump

b)

facilitated diffusion

c)

simple diffusion

d)

endocytosis

50.

Which of the following is how water moves across the membrane?

a)

protein pump

b)

facilitated diffusion

c)

simple diffusion

d)

endocytosis

51.

Which of the following is how glucose moves across the membrane?

a)

protein pump

b)

facilitated diffusion

c)

simple diffusion

d)

endocytosis

52.

Which of the following is active transport

a)

protein pump

b)

facilitated diffusion

c)

simple diffusion

53.

Which of the following is how oxygen and carbon dioxide move across the membrane?

a)

protein pump

b)

facilitated diffusion

c)

simple diffusion

d)

endocytosis

54.

Which of the following is how and ion would move from low to high?

a)

protein pump

b)

facilitated diffusion

c)

simple diffusion

d)

endocytosis

55.

Which of the following uses ATP?

a)

active transport

b)

passive transport

56.

Which of the following is how glucose moves across the membrane?

a)

active transport

b)

passive transport

57.

Which of the following is how water moves across the membrane?

a)

active transport

b)

passive transport

58.

Which of the following is how carbon dioxide moves across the membrane?

a)

active transport

b)

passive transport

59.

The SARS-Cov-2 spike protein attaches to an ACE-2 Receptor.

a)

True

b)

False

60.

"Against the concentration gradient" is another way of saying diffusion.

a)

True

b)

False

61.

Some type of diffusion, like facilitated diffusion, requires energy.

a)

True

b)

False

62.

Which process would require the most ATP molecules to make it "work"?

a)

pumping one ion across the protein pump

b)

using endocytosis

c)

using facilitated diffusion

d)

allowing water to travel through an aquaporin

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