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Cell Membrane & Transport Review

Total questions: 66

Worksheet time: 52mins

Name
Class
Date
1.

How does the cell membrane help the cell maintain homeostasis?

a)

It stores water and waste

b)

It controls what enters and leaves the cell

c)

It packages and ships proteins

d)

It digests waste and old cell parts

2.

What is homeostasis?

a)

How cells break down food for energy

b)

How plants form sugars using sunlight

c)

How cells maintain a stable internal environment

d)

How ribosomes make proteins

3.

Which of these is not a function of a plasma membrane?

a)

Controls the movement of substances in and out of a cell

b)

Allows different conditions to be established inside and outside a cell

c)

Acts as a partially permeable barrier

d)

Is a barrier where only proteins can transport substances in and out of a cell

4.

The ability to allow only certain molecules into or out of the cell.

a)

Semipermeability

b)

Permeability

c)

Impermeability

d)

Unpermeability

5.
Permeable means
a)
things can pass through
b)
the concentration levels are different
c)
it is permanent
d)
things are stuck
6.

Describes the arrangement of the cell membrane as made of many parts that can flow and move.

a)

The Fluid Mosaic Model

b)

The Major Mobility Model

c)

The Crazy Cell Model

d)

The Maze Model

7.

The plasma membrane has lipids, proteins, and carbohydrates throughout. This makes it look like a

a)

mosaic because it all looks the same and there are a lot of the same things on the membrane.

b)

fluid because they all move around

c)

fluid because they stay still

d)

mosaic because there are all types of things on the cell membrane

8.
Most of the cell membrane is made of...
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic acids
9.

The head portion of the phospholipid is ________ and ___________.

a)

hydrophobic and polar

b)

nonpolar and hydrophilic

c)

polar, hydrophilic

d)

hydrophilic and nonpolar

10.

The fatty acid tails are

a)

nonpolar and hydrophobic

b)

polar and hydrophobic

c)

nonpolar and hydrophilic

d)

polar and hydrophilic

11.

Which of these statements is true

a)

Phospholipids have a hydrophilic polar fatty acid tail

b)

Phospholipids have a hydrophilic polar phosphate head

c)

Phospholipids have a hydrophobic polar fatty acid tail

d)

Phospholipids have a hydrophobic non polar phosphate head

12.

Which molecule helps the membrane to be flexible?

a)

protein

b)

carbohydrate

c)

cholesterol

13.
What forms the channels and pumps in the phospholipid bilayer?
a)
Carbohydrates
b)
Proteins
c)
Hydrophilic heads 
d)
Lipids
14.

A major function of glycoproteins and glycolipids in the membane 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

15.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A 
16.
Part of the plasma membrane responsible for cell recognition... 
a)
C
b)
E
c)
B
d)
D
17.

Name substance 13

a)

Glycoprotein

b)

Glycolipid

c)

Cholesterol

d)

Channel protein

18.

Name substance 7

a)

Channel protein

b)

Carrier protein

c)

Gated channel protein

d)

Surface protein

19.

Name substance 1

a)

Phospholipid

b)

Glycolipid

c)

Glycoprotein

d)

Cholesterol

20.

Name substance 5

a)

Glycolipid

b)

Glycoprotein

c)

Phospholipid

d)

Cholesterol

21.
Identify the Cholesterol
a)
A
b)
C
c)
D
d)
E
22.
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
23.
Passive transport requires no
a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
24.

Which of the following molecules pass directly through the phospholipid bilayer, requiring no extra help or energy? Select all that apply.

a)

sodium ion

b)

glucose

c)

oxygen

d)

carbon dioxide

25.

Which of the following molecules don't pass easily through the cell membrane, requiring extra help or input of energy?

a)

sodium ion

b)

glucose

c)

oxygen

d)

carbon dioxide

26.
Materials that can move across a membrane with passive transport include
a)
water, oxygen, and carbon dioxide
b)
starch and other polysaccharides
c)
DNA and RNA
d)
large proteins
27.

Which of the following are embedded in the phospholipid bilayer and help substances pass through?

a)

lipids

b)

proteins

c)

cholesterol

d)

carbohydrates

28.

Which type of Passive transport uses the help of a transport protein?

a)

Osmosis

b)

Facilitated diffusion

c)

Simple diffusion

29.

What type of passive transport moves water molecules from high concentration to low concentration?

a)

Simple diffusion

b)

Osmosis

c)

Active transport

d)

Facilitated diffusion

30.

What process is shown in the diagram below?

a)

active transport

b)

diffusion

c)

osmosis

d)

facilitated diffusion

31.

Aquaporins are involved in which type of transport?

a)

active transport

b)

facilitated diffusion

c)

phagocytosis

d)

simple diffusion

32.

Water channel proteins

a)

Receptors

b)

Aquaporins

c)

Osmotic Pressure

d)

Homeostasis

33.

When a substance has equal concentrations on both sides of a membrane it will reach ____________ and the molecules will ____________ moving back and forth.

a)

hypertonic, stop

b)

hypertonic, keep

c)

equilibrium, stop

d)

dynamic equilibrium, keep

34.
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)

Dynamic Equilibrium

35.
When the concentration of solute molecules outside the cell is equal to the concentration inside the cell, the solution is
a)
hypertonic
b)
hypotonic
c)
isotonic
d)
ionic
36.
What happens to a cell placed in a HYPOTONIC solution?
a)
It shrinks
b)
It swells
c)
Nothing Happens
37.
If a cell is placed in a hypertonic solution, what will happen?
a)
Water will move into the cell causing it to swell.
b)
Water will move out of the cell causing it to shrink.
c)
nothing.
d)
Water will move out of the cell causing it to swell.
38.
What happens to a cell placed in a HYPERTONIC solution
a)
It shrinks
b)
It swells
c)
Nothing happens
39.
Ideally, your cells should be in a(n) _______ solution
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Cola
40.

What is the ideal environment for a plant cell?

a)

hypotonic

b)

hypertonic

c)

isotonic

d)

tonic and lime

41.

What type of solution should you put fresh flowers in to keep them fresh the longest?

a)

Hypertonic- It causes plasmolysis, which causes the flowers to turgid.

b)

Hypotonic- It causes the cell membrane to push on the cell wall, causing the flowers to stay turgid.

c)

Isotonic- It causes the flowers to become flaccid.

d)

Neutral solution- It will not cause any change in the flowers

42.

What happens when a plant cell becomes flaccid?

a)

The plant becomes stiff or turgid due to an increase in cell pressure.

b)

There is more structure to the cells

c)

The plant cells bursts

d)

The plant becomes wilted because of a loss of cell pressure.

43.

What is happening in the picture?

a)

active transport

b)

diffusion

c)

osmosis

d)

facilitated diffusion

44.

The membrane does not allow the green molecules to pass through it. What will happen next?

a)

Water will flow into side A.

b)

Water will flow into side B.

c)

Water will stay still.

45.

Which way will the water molecules move during osmosis? (Mickey Mouse molecules in diagram)

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.

46.
In this picture, which way will the water move?
a)
Water will move into the cell
b)
Water will move out of the cell
c)
Water will move in and out of the cell
d)
Water will not move
47.
In this picture, how do you classify the solution?
a)
The solution is hypotonic
b)
The solution is hypertonic
c)
The solution is isotonic
d)
The solution is my tonic
48.

If the % represent % of sugar, what direction will water flow?

a)

Into the cell

b)

Out of the cell

c)

Both equally (equilibrium)

49.

If the % represent % of sugar, what best describes the solution the cell is in?

a)

Hypotonic Solution

b)

Hypertonic Solution

c)

Isotonic Solution

50.

If the % represent % of sugar, what will happen to the cell in the given solution?

a)

Swell up

b)

Shrink

c)

Stay the same

51.

Where will water move in this situation?

a)

Into the cell

b)

Out of the cell

c)

No movement

d)

Into its parent's basement

52.

Where will the water go?

a)

Into the cell

b)

Out of the cell

c)

Equally in & out - it's isotonic

d)

There is no water

53.
 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
54.
What is the difference between active and passive transport?
a)
Active does not need energy and passive uses ATP (energy)
b)
Active uses ATP (energy) and passive does not need energy
c)
Active stores transport proteins and passive releases 
d)
Active uses hormones and passive does not 
55.

Why does active transport require energy?

a)

The proteins are too small for the particles to pass and need energy to make a wider passage

b)

The particles go against the concentration gradient from a lower to higher area.

c)

The particles being transported are nonpolar

d)

The particles go with the concentration gradient from a higher to lower area.

56.

In active 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

57.

Which movement of substances through a cell membrane against a concentration gradient requires energy?

a)

osmosis

b)

diffusion

c)

active transport

d)

facilitated diffusion

58.
Which is NOT a form of active transport?
a)
Endocytosis
b)
Osmosis
c)
Exocytosis
d)
Pinocytosis
59.
This process is known as ________ transport.
a)
passive
b)
active
c)
protein
d)
temporary
60.

The sodium potassium pump is an example of what type of transport?

a)

Diffusion

b)

Facilitated Diffusion

c)

Active Transport

d)

Passive Transport

61.
When cells take in food particles through active transport, what is it called?
a)
Pinocytosis
b)
Phagocytosis
c)
Exocytosis
d)
Osmosis
62.
When cells take in a liquid through active transport, what is it called?
a)
Exocytosis
b)
Phagocytosis
c)
Pinocytosis
d)
Osmosis
63.
When cells form a vesicle to release materials, which form of transport is occurring? 
a)
Endocytosis
b)
Exocytosis
c)
Facilitated Diffusion
d)
Osmosis
64.
Which form of active transport is being shown?
a)
Pinocytosis
b)
Endocytosis
c)
Exocytosis
d)
Osmosis
65.
Human immune cells can engulf bacteria to destroy them. This is an example of 
a)
pinocytosis
b)
phagocytosis
c)
exocytosis
d)
acidosis
66.
What do the processes of exocytosis and endocytosis have in common?
a)
They are a way to move materials out of a cell.
b)
The are a way to move materials into a cell.
c)
They are both kinds of passive transport.
d)
They both involve a membrane surrounding material that needs to be moved in or out of a cell.

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