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Cell Membrane

Total questions: 46

Worksheet time: 38mins

Name
Class
Date
1.
The function of the plasma membrane is....
a)
to regulate what enters and leaves the cell.
b)
fight bacteria and viruses that enter the cell.
c)
provide rigid support and protection to the cell.
d)
make sure each cell can move
2.
Most of the cell membrane is made of...
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic acids
3.
What is embedded in the phospholipid bilayer?
a)
proteins
b)
salt
c)
water
d)
trapped animals
4.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads 
d)
lipids
5.
Hydrophilic portion of cell membrane?
a)
A
b)
C
c)
D
d)
E 
6.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A 
7.
___________ allow cells to recognize each other and act like ID tags. 
a)
Carbohydrates 
b)
Proteins
c)
Phospholipids 
d)
Cholesterol
8.
___________ strengthens and stabilizes the cell membrane.
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
9.
___________ have 2 functions in the cell membrane.
1.) They act like gatekeepers, only let certain things in. 
2.) Enzyme receptors embedded in the membrane.
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
10.

The _______________ of the phospholipids in a cell membrane face inward towards each other.

a)

heads

b)

tails

c)

stems

d)

sticks

11.

Which two molecules are embedded in the cell membrane?

a)

chlorophyll

b)

cholesterol

c)

glycolipids

d)

glycogen

12.
Which of the following is NOT part of the cell membrane?
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic Acids
13.
It forms a boundary between the inside of the cell and the outside of the cell. 
a)
Cell Membrane
b)
Lipid Cleric Layer
c)
Membrane Gate
d)
Protein Receptors 
14.

Osmosis is specifically.....

a)

diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration

b)

the diffusion of particles from an area of high concentration to an area of low concentration

c)

diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration

d)

the diffusion of particles from an area of low concentration to an area of high concentration

15.
In which case would a cell most likely shrink?
a)
when placed in a solution containing a high salt concentration
b)
when placed in a isotonic solution
c)
when placed in a solution containing a low pH
d)
when placed in a solution containing distilled water
16.
Active transport requires energy because...
a)
The cell is moving something against a concentration gradient
b)
The cell is moving something with a concentration gradient
17.
A student noticed that placing wilted lettuce in a bowl of cool water caused the lettuce to become more crisp and firm. What is the best explanation for his observation?
a)
Water moved into the lettuce cells by active transport.
b)
Water moved into the lettuce cells by osmosis.
c)
Salt moved into the lettuce cells by diffusion.
d)
Water moved out of the lettuce cells by osmosis.
18.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
19.
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
20.

Nemo and other ocean dwelling fish cannot survive in freshwater because......

a)

freshwater is hypertonic to Nemo's cells and will result in water leaving them causing the cells to shrink

b)

freshwater is hypotonic to Nemo's cells and will result in water leaving them causing the cells to shrink

c)

freshwater is hypertonic to Nemo's cells and will result in water entering them causing the cells to swell and burst

d)

freshwater is hypotonic to Nemo's cells and will result in water enter them causing the cells to swell and burst

21.

In the cell pictured, which way would water move?

a)

Into the cell, causing the cell to swell

b)

Out of the cell, causing the cell to shrink

c)

In and out of the cell equally, keeping the shape the same

22.

In the cell pictured, which way would water move?

a)

Into the cell, causing the cell to swell

b)

Out of the cell, causing the cell to shrink

c)

In and out of the cell equally, keeping the shape the same

23.

In the cell pictured, where would water move? 

a)

Into the cell, causing it to swell

b)

Out of the cell, causing it to shrink

c)

In and out of the cell equally, causing the shape to stay the same

24.

In the cell pictured, which way would water move?

a)

Into the cell, causing the cell to swell

b)

Out of the cell, causing the cell to shrink

c)

In and out of the cell equally, keeping the shape the same

25.
Ideally, your cells should be in a(n) _______ solution
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Cola
26.
The cell below is in a _________ solution.
a)
Hypotonic
b)
Hypertonic
c)
Isotonic
27.

Which type of passive transport uses proteins to help molecules pass through the membrane?

a)
Diffusion
b)
Facilitated diffusion
c)
Osmosis
d)
All of the above
28.

Cell membranes are described as selectively permeable.

Four students were asked to explain what this means. Which one is correct?

a)

Student 1: Cell membranes prevent all materials from entering the cell.

b)

Student 2: Cell membranes only provide structural support for the cell.

c)

Student 3: Cell membranes regulate which substances can enter and exit the cell.

d)

Student 4: Cell membranes allow water and water-soluble substances to enter the cell.

29.

All of the following are functions of a cell membrane EXCEPT

a)

surrounding and protecting the contents of the cell.

b)

releasing waste products from the cell.

c)

producing energy for the cell processes.

d)

allowing gases to enter the cell.

30.

Passive Transport

a)

Does require cell energy

b)

Does NOT require cell energy

31.
Which of the following moves with the concentration gradient?
a)
Active Transport
b)
Phagocytosis
c)
Pinocytosis
d)
Diffusion 
32.

What biomolecule is number one pointing to?

a)

Lipid

b)

Protein

c)

Nucleic Acid

d)

Carbohydrate

33.
What type of transport is this?
a)
Endocytosis
b)
Diffusion
c)
Exocytosis
d)
Osmosis
34.
What type of transport is this?
a)
Endocytosis
b)
Facilitated Diffusion
c)
Active Transport Pump
d)
Osmosis
35.
What type of transport is this?
a)
Endocytosis
b)
Exocytosis
c)
Diffusion
d)
Sodium-Potassium Pump
36.

Active transport is movement of particles through the cell membrane from a region of ...1... to a region of ...2... using energy in the form of ...3...

a)

1: lower concentration, 2: higher concentration, 3: NADPH

b)

1: higher concentration, 2: lower concentration, 3: NADPH

c)

1: higher concentration, 2: lower concentration, 3: ATP

d)

1: lower concentration, 2: higher concentration, 3: ATP

37.

Which one is the definition of active transport?

a)

movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

b)

passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

c)

net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

d)

net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

38.
The picture is an example of...
a)
active tranport
b)
passive transport
c)
diffusion
d)
osmosis
39.
The roots of a plant contain a high concentration of minerals and the soil contains a lower concentration.  The roots absorb minerals from the soil.  This is an example of
a)
passive transport.
b)
active transport.
c)
diffusion
d)
osmosis
40.

A general term for the various types of active transport that move particles into a cell by enclosing them in a vesicle made out of plasma membrane.

a)

Endocytosis

b)

Exocytosis

c)

Osmosis

d)

Diffusion

41.

A form of bulk transport in which materials are transported from the inside to the outside of the cell in membrane-bound vesicles that fuse with the plasma membrane.

a)

Endocytosis

b)

Exocytosis

c)

Osmosis

d)

Diffusion

42.

white blood cells engulfing invading bacteria is an example of

a)

Endocytosis

b)

Exocytosis

c)

Diffusion

d)

Facilitated Diffusion

43.

nerve cells release neurotransmitters across gaps

and secretion of proteins and wastes

a)

Exocytosis

b)

Endocytosis

c)

Diffusion

d)

Facilitated Diffusion

44.

small compartment enclosed by a membrane formed during transport of material during endo + exocytosis

a)

vesicles

b)

large vacuole

c)

mitochondria

d)

lysosome

45.
When cells take in food particles through active transport, what is it called?
a)
Pinocytosis
b)
Phagocytosis
c)
Exocytosis
d)
Osmosis
46.
When cells take in a liquid through active transport, what is it called?
a)
Exocytosis
b)
Phagocytosis
c)
Pinocytosis
d)
Osmosis

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