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WorksheetsCell Membrane and Transport
Total questions: 64
Worksheet time: 45mins
Name
Class
Date
1.
How does a cell maintain homeostasis?
a)
Regulates what enters and leaves the cell
b)
Flexibility
c)
Protective barrier
d)
Structure and support
2.
Another term for equilibrium is...
a)
Equality
b)
Babycakes
c)
Homeostasis
d)
Balance
3.
What is another term for "selectively permeable"?
a)
Porous
b)
Acts like a switch
c)
Permanent
d)
Semipermeable
4.
The cell membrane is selectively permeable, which means...
a)
All materials can enter and leave the cell
b)
Certain things can enter while others cannot
c)
The cell manually sorts through all materials
d)
Only certain cells can interact with the cell.
5.
Most of the cell membrane is made of...
a)
Lipids
b)
Carbs
c)
Proteins
d)
Nucleic acids
6.
How many layers is the lipid bilayer?
a)
1
b)
2
c)
3
d)
4
7.
A can of air freshener is sprayed in the opposite side of the room. Ten minutes later you start to smell the scent. This is an example of
a)
diffusion
b)
active transport
c)
endocytosis
d)
osmosis
8.
The movement of water across a selectively permeable membrane without the use of any energy is called
a)
endocytosis
b)
diffusion
c)
active transport
d)
osmosis
9.
Two examples of passive transport are
a)
Earth and Sun
b)
Diffusion and Osmosis
c)
Energy and Wind
d)
None of the above
10.
What a cell needs to transport particles by active transport?
a)
Sun
b)
Wind
c)
Energy
d)
Channels
11.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
12.
The movement of molecules against a concentration gradient
a)
simple diffusion
b)
facilitated diffusion
c)
active transport
d)
osmosis
13.
The picture is an example of.....movement from low concentration to high concentration.
a)
active tranport
b)
passive transport
c)
diffusion
d)
osmosis
14.
During Osmosis
a)
water moves from high concentration to low concentration
b)
proteins are built
c)
water moves when energy is used
15.
When perfumed is sprayed, where is the concentration high?
a)
in the room
b)
in the bottle
c)
in the hand
16.
True or false: Regulating what enters and leaves the cell helps the cell maintain homeostasis.
a)
True
b)
False
17.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads
d)
lipids
18.
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
19.
Which of the following is responsible for getting complex molecules across the cell membrane?
a)
Lipids
b)
Carbs
c)
Proteins
d)
Nucleic Acids
20.
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.
21.
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.
22.
A person should never drink salty water because their cells would
a)
shrink
b)
expand
23.
A person's tongue cells after finishing eating a salty French fry would...
a)
get smaller
b)
get bigger
c)
remain the same
24.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
25.
What a cell needs to transport particles by active transport?
a)
Sun
b)
Wind
c)
Energy
d)
Channels
26.
Two examples of passive transport are
a)
Earth and Sun
b)
Diffusion and Osmosis
c)
Energy and Wind
d)
None of the above
27.
The picture is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
28.
The movement of water across a selectively permeable membrane without the use of any energy is called
a)
endocytosis
b)
diffusion
c)
active transport
d)
osmosis
29.
A cell will _____________________ in a hypertonic solution.
a)
swell
b)
shrink
c)
will not change
d)
will explode
30.
A cell will __________________ in a hypotonic solution.
a)
swell and perhaps burst (lyse)
b)
shrink
c)
the size of the cell will not change
d)
the size of the cell will change from large to small and from small to large
31.
Sometimes, energy is required for ____ molecules to go in or out of the cell because they cannot fit into the membrane.
a)
big
b)
small
c)
crunchy
d)
water
32.
Sometimes, the cell needs more of things that it already has. In that case, energy is used to get more of it into the cell. This is called...
a)
active transport
b)
passive transport
c)
diffusion
d)
osmosis
33.
Which term best describes what is taking place in the picture?
a)
endocytosis
b)
exocytosis
c)
protein pump
d)
facilitated diffusion
34.
Which term best describes what is taking place in the picture?
a)
endocytosis
b)
exocytosis
c)
protein pump
d)
facilitated diffusion
35.
which way would the purple molecules move through the semi permeable membrane?
a)
From the A side to the B-side
b)
From the B side to the A side
c)
none of the purple molecules would move
36.
_______ regulates what enters and leaves a cell.
a)
Cell Membrane
b)
Nucleus
c)
Mitochondria
d)
Cytoplasm
37.
The diagram shows various molecules that move into and out of the cell. How does molecule C move out the cell?
a)
Active Transport
b)
Diffusion
c)
The use of a protein pump
d)
Manipulated osmosis
38.
Solutes enter a cell when the solution surrounding that cell is
a)
hypertonic
b)
weak
c)
concentrated
d)
hypotonic
39.
Which process uses proteins to move molecules against a concentration gradient?
a)
active transport
b)
endocytosis
c)
passive transport
d)
phagocytosis
40.
Unlike passive transport, active transport requires...
a)
concentration gradients
b)
energy from the cell
c)
vesicles
d)
diffusion
41.
What is the function of the proteins in the cell membrane?
a)
Cellular respiration
b)
Photosynthesis
c)
Cell transport
d)
Communication
42.
A hypertonic solution has a _____ concentration of solute than the interior of the cell and a cell will ______ when placed into this solution.
a)
lower; shrink
b)
lower; swell
c)
higher; shrink
d)
higher; swell
43.
Inside osmosis bag A (semipermeable membrane), there is a 50% glucose solution. Inside osmosis bag B there is a 20% glucose solution. Both bags are placed into beakers containing distilled water. What will occur?
a)
Bag A will gain mass.
b)
Bag B will gain mass.
c)
Both bags will gain mass.
d)
Both bags will lose mass.
44.
When cells are placed in a __________ solution they begin to swell.
a)
Hypertonic
b)
Isotonic
c)
Hypotonic
d)
Equalized
45.
What is diffusion?
a)
when molecules move
b)
when molecules move from a high concentration to a low.
c)
no movement
d)
molecules move everywhere
46.
Where is there a high concentration of water?
a)
in the flower
b)
cannot be determined by picture.
c)
in the vase
d)
in the leaves
47.
When a person smells something, what is actually traveling up their nose?
a)
solids
b)
molecules
c)
matter
d)
plasma
48.
Where is there a low concentration of dye?
a)
at the bottom of cup
b)
in the color
c)
at the top of cup
d)
no concentration gradient
49.
Osmosis is the diffusion of __________.
a)
water
b)
glucose
c)
air
d)
passive transport
50.
The picture is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
51.
Two examples of passive transport are
a)
Earth and Sun
b)
Diffusion and Osmosis
c)
Energy and Wind
d)
None of the above
52.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
53.
Permeable means
a)
things can pass through
b)
the concentration levels are different
c)
it is permanent
d)
things are stuck
54.
What must materials be dissolved in to pass through a cell membrane?
a)
water
b)
blood
c)
oxygen
55.
What does it mean that a cell membrane is semi-permeable?
a)
It allows all substances in
b)
It allows some substances in
c)
It allows nothing in
56.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
57.
A person should never drink salty water because their cells would
a)
shrink
b)
expand
58.
A person would never have pure water put into their veins in a hospital because their cells would...
a)
Shrink/Dehydrate
b)
Expand
59.
There are more molecules inside a cell than there are outside the cell.... which way would the molecules move inside the cell or outside the cell
a)
Move inside the cell
b)
Move outside the cell
60.
If there is 5 percent water inside a cell and 5 percent water outside a cell
a)
more water will move inside the cell
b)
more water will move outside the cell
c)
There will be no movement of water cells
61.
If there is 5 percent water inside a cell and 5 percent water outside a cell
a)
more water will move inside the cell
b)
more water will move outside the cell
c)
There will be no movement of water cells
62.
Passive transport requires no
a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
63.
Controlling what goes into or out of the cell with the help of energy is called
a)
active transport
b)
endocytosis
c)
passive transport
d)
exocytosis
64.
Controlling what goes into or out of the cell without energy is called
a)
active transport
b)
endocytosis
c)
passive transport
d)
exocytosis
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