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Biology U1T1 Revision

Total questions: 51

Worksheet time: 1hrs 16mins

Name
Class
Date
1.
All cells have a:
a)
Nucleus
b)
Plasma membrane
c)
Cell wall
d)
Buddy
2.
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
3.
What is NOT TRUE about the cell membrane
a)
It controls what enters and leaves the cell
b)
Semipermeable
c)
Phospholipid bilayer
d)
Contains digestive enzymes
4.
What do the brown structures represent?
a)
Phospholipids
b)
Glycoproteins
c)
Channel Proteins 
d)
Cyctoskeleton Filaments
5.
What is another term for "selectively permeable"?
a)
porous
b)
completely permeable
c)
permanent
d)
semipermeable
6.
What does "bilayer" mean?
a)
one layer
b)
two layers
c)
laminated
d)
bilateral
7.
Hydrophilic means...
a)
water-loving
b)
water-fearing
c)
nonpolar
d)
lipid soluble
8.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A 
9.
A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails. 
a)
phospholipid 
b)
Carbohydrate
c)
Cholesterol 
d)
Protein 
10.
___________ strengthens and stabilizes the cell membrane.
a)
Carbohydrates 
b)
Proteins 
c)
Phospholipids 
d)
Cholesterol
11.

Which type of biological macromolecule is the main component of the plasma membrane?

a)

carbohydrate

b)

lipid

c)

protein

d)

nucleic acid

12.

This image is an example of a phospholipid. Which part of a phospholipid is HYDROPHOBIC?

a)

the phosphate "head"

b)

the lipid "tails"

13.
True or False: Large molecules, such as glucose, can easily pass through the cell membrane without any help...
a)
True: They pass right through.
b)
False: They need a protein channel.
14.

In passive transport, the concentration gradient goes from..

a)

Low to low

b)

High to low

c)

Low to high

d)

High to high

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.
 In the given scenario what will happen?  An egg with a dissolved shell is placed in pure water for 48 hours.
a)
Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
b)
The egg will gain water and swell.
c)
The egg will lose water and shrink.
18.
 An animal cell placed in a hypertonic (salty) solution will
a)
Stay the same
b)
Shrink- get smaller
c)
Swell- get bigger
19.
The movement of water through a semi-permeable membrane is called?
a)
cell membrane
b)
respiration
c)
osmosis
d)
diffusion
20.
The picture  is an example of _________________.
a)
isotonic
b)
diffusion
c)
osmosis
d)
active transport
21.
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)
equilibrium
c)
diffusion
d)
hypertonic
22.
In a scenario, salt is placed into a bowl of water.  What is the solvent?
a)
salt
b)
water
c)
saltwater
23.
If you looked at red blood cells under a microscope and saw the blood cells exploded, what would you say happened?
a)
The cells were placed in a hypotonic solution.
b)
the solution was isotonic.
c)
The solution was hypertonic.
24.
What does selectively-permeable mean?
a)
The cell controls what passes in and out of the cell
b)
Nothing gets through
c)
The cell lets only large substances through
25.
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 concenteraion gradient
26.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
27.
What is the definition of  Selective Permeability?
a)
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
b)
The movement of materials through (or across) the cell membrane
c)
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
d)
The movement of molecules from an area of high concentration to a area of low concentration 
28.

How do the particles move in diffusion?

a)

From a region of low concentration to a region of high concentration

b)

From a region of high concentration to a region of low concentration

c)

From a region of low concentration to a region of low concentration

d)

From a region of high concentration to a region of high concentration

29.

Diffusion occurs only in solids

a)

True

b)

False

30.

The movement of particles is __________, resulting in the particles being spread throughout the container

a)

Structured

b)

In a straight line

c)

Random

d)

In curved, way motions

31.

What does a 'region with high concentration' mean?

a)

An area with a SMALL number of particles

b)

An area with a LARGE number of particles

c)

An area with an UNEVEN number of particles

d)

An area with no particles

32.

When does diffusion stop?

a)

After a day and a night

b)

When the particles are evenly spread out

c)

When there are no particles left

d)

When all the particles leave the system

33.

What is DIFFUSION?

a)
b)
c)
d)
34.
An increase in temperature does what to diffusion?
a)
Speeds it up
b)
Slows it down
c)
Has no effect
d)
I wish i knew. Really I do.
35.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
36.
All matter is made of _____ that are constanly moving.
a)
insulators
b)
particles
c)
convection
d)
pieces of plastic
37.
What happens to particles when they are heated?
a)
They speed up and spread out
b)
They slow down and compress
c)
They stop moving
d)
They move closer together and speed up
38.

Which of the following is a function (job) of the cell membrane>

a)

breaks down lipids, carbohydrates, and proteins from food

b)

stores water, salt, proteins, and carbs

c)

keeps the cell wall in place

d)

regulates the movement of materials into and out of the cell

39.

Which of the following does NOT belong to the cell theory?

a)

all living organisms have the same type of cell

b)

All living organisms are composed of one or more cells

c)

All cells come pre-existing cells

d)

Cells are the basic unit of life

40.

All bacteria cells are...

a)

Prokaryotic Cells

b)

Eukaryotic Cells

41.

In a eukaryotic cell, where is the DNA located?

a)

In the cell membrane

b)

There is no DNA

c)

In the nucleus

d)

In the cell wall

42.

In a prokaryotic cell, where is the DNA located?

a)

In the cell wall

b)

In the nucleus

c)

In the cell membrane

d)

It has no specific location

43.

What type of cells do animals have?

a)

prokaryotic cells

b)

bacteria cells

c)

eukaryotic cells

d)

none of the above

44.

Check the boxes that tell the cell theory.

a)

all organisms are composed of one or more cells

b)

all cells are the basic unit of life

c)

All cells are plant cells

d)

All cells come from pre-existing cells

45.

What do you see?

a)

a prokaryotic cell

b)

the bottom of the ocean

c)

a white blood cell

d)

an eukaryotic cell

46.

What do you see?

a)

a white blood cell

b)

an eukaryotic cell

c)

DNA

d)

a prokaryotic cell

47.

True or False:

Only eukaryotic cells have DNA.

a)

True

b)

False

48.
Which of the following is found inside a prokaryote?
a)
cytoplasm
b)
DNA
c)
ribosomes
d)
all of these
49.

Which cells contain Ribosomes?

a)

Prokaryotic

b)

Eukaryotic

c)

Both

50.
Which of the following would be found in both eukaryotic AND prokaryotic cells?
a)
chloroplast
b)
cytoplasm
c)
nucleus
d)
endoplasmic reticulum
51.
The movement of water through a semi-permeable membrane is called?
a)
cell membrane
b)
respiration
c)
osmosis
d)
diffusion

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