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Cell membrane and Transport

Total questions: 20

Worksheet time: 18mins

Name
Class
Date
1.

What does "bilayer" mean?

a)

one layer

b)

two layers

c)

laminated

2.
What forms the channels and pumps in the phospholipid bilayer?
a)
Carbohydrates
b)
Proteins
c)
Hydrophilic heads 
d)
Lipids
3.
Hydrophilic means...
a)
water-loving
b)
water-fearing
c)
nonpolar
d)
lipid soluble
4.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A 
5.
Hydrophilic portion of cell membrane?
a)
A
b)
C
c)
D
d)
E 
6.
The picture is an example of...
a)
active transport
b)
passive transport
c)
diffusion
d)
osmosis
7.

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 made up of different parts.

8.
What is a bad description of the cell membrane?
a)
Selectively permeable
b)
Fluid Mosaic Model
c)
Solid Barrier
d)
Lipid Bilayer
9.

Which type of Passive Transport is being represented in this picture?

a)

Passive Diffusion

b)

Simple Diffusion

c)

Active Diffusion

d)

Facilitated Diffusion

10.

What type of solution is this cell in?

a)

Isotonic

b)

Hypertonic

c)

Hypotonic

11.

What type of solution is this cell in?

a)

Isotonic

b)

Hypertonic

c)

Hypotonic

12.

What type of solution is this cell in?

a)

Isotonic

b)

Hypertonic

c)

Hypotonic

13.

Examples of particles that can diffuse across through the phospholipid bilayer include:

a)

oxygen and carbon dioxide

b)

sugar

c)

water

d)

calcium ions

14.
A phospholipid has 2 parts. What are they called? 
a)
Hydrophilic Head, Hydrophobic Tail 
b)
Hydrophobic Head, Hydrophilic Tail 
15.
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.
16.
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
17.
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
18.

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 equal movement into and out of the cell

19.

Special proteins help move particles, but NO energy is needed. This is..

a)

facilitated diffusion

b)

exocytosis

c)

active transport

20.
___________ allow cells to recognize each other and act like ID tags. 
a)
Carbohydrates 
b)
Proteins
c)
Phospholipids 
d)
Cholesterol

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