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U2: Homeostasis Review

Total questions: 42

Worksheet time: 54mins

Name
Class
Date
1.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
2.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
3.
During osmosis
a)
water moves from high to low concentration
b)
large or oddly shaped molecules move across a cell membrane
c)
water moves when energy is used
d)
proteins are built
4.
Permeable means
a)
things can pass through
b)
the concentration levels are different
c)
it is permanent
d)
things are stuck
5.
The diffusion of water through a semi-permeable membrane is called?
a)
Osmosis
b)
Cell wall
c)
Diffusion
d)
Respiration
6.
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
7.
Passive transport requires no
a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
8.
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
9.
Diffusion and Osmosis are examples of...
a)
Active Transport
b)
Passive Transport
10.
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
11.
_______ regulates what enters and leaves a cell.  
a)
Cell Membrane
b)
Nucleus
c)
Mitochondria
d)
Cytoplasm
12.

The cell membrane is _______________ permeable.

a)

selectively

b)

somewhat

c)

physically

d)

ionically

13.

The cell membrane is mostly made of what?

a)

Membrane-spanning Proteins

b)

Surface Proteins

c)

Phospholipids

d)

Carbohydrates

14.

Identify cholesterol molecule

a)

structure a

b)

structure b

c)

structure h

d)

structure i

15.

Identify a peripheral protein

a)

structure a

b)

strucure b

c)

structure g

d)

structure h

16.

Plasma membranes are selectively permeable. This means

a)

anything can pass in and out

b)

the membrane regulates the passage of the material in and out of the cell

c)

glucose cannot enter the cell

d)

cholesterol cannot enter

17.
What is this image?
a)
cell membrane
b)
proteins
c)
carbohydrates
d)
lipids
18.
All cells have a:
a)
Nucleus
b)
Plasma membrane
c)
Cell wall
d)
Buddy
19.
What does "bilayer" mean?
a)
one layer
b)
two layers
c)
laminated
d)
bilateral
20.
In biological membranes, the phospholipids are arranged in a _______, with the_______.
a)
bilayer; fatty acids pointing toward each other
b)
bilayer; fatty acids facing outward
c)
single layer; fatty acids facing the interior of the cell
d)
single layer; phosphorus-containing region facing the interior of the cell
21.
Homeostasis
a)
allows for a wildly fluctuating internal environment
b)
is impossible in vertebrates
c)
is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
d)
is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation
22.
Most of the cell membrane is made of...
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic acids
23.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads 
d)
lipids
24.
Hydrophobic region of the cell membrane?
a)
E
b)
B
c)
C
d)
A 
25.
Hydrophilic means...
a)
water-loving
b)
water-fearing
c)
nonpolar
d)
lipid soluble
26.
Describes the arrangement of the cell membrane as bendable and made of many parts. 
a)
The Fluid Mosaic Model 
b)
The Major Mobility Model 
c)
The Crazy Cell Model
d)
The Maze Model
27.
How does a cell maintain homeostasis?
a)
Regulates what enters and leaves the cell
b)
Flexibility
c)
Protective barrier
d)
Structure and support
28.
A person should never drink salty water because their cells would
a)
shrink
b)
expand
29.
The picture is an example of...
a)
active transport
b)
passive transport
c)
diffusion
d)
osmosis
30.
What does a cell need to transport particles by active transport?
a)
Sun
b)
Wind
c)
Energy
d)
Channels
31.
What is one major difference between passive and active transport?
a)
Passive transport uses energy; active transport does not.
b)
Both types of transport use energy.
c)
Active transport uses energy; passive transport does not.
d)
No difference. They are both the same.
32.
Small, non-polar molecules like CO2 and O2 and NO can pass through the cell membrane using what type of transport?
a)
Diffusion
b)
Osmosis
c)
Facilitated Diffusion
d)
Endocytosis
33.
What are the three types of passive transport?
a)
osmosis, diffusion, active transport
b)
active transport, facilitated diffusion, osmosis
c)
diffusion, osmosis, facilitated diffusion
d)
facilitated diffusion, active transport, diffusion
34.

What type of solution is a cell in when it gets bigger than normal while in tap water?

a)

hypertonic

b)

isotonic

c)

hypotonic

35.

If the dots represent sugar which is more concentrated

a)

Inside the cell

b)

Outside the cell

c)

Neither they are equal (equilibrium)

36.

If the percentage represents sugar, what direction will water flow?

a)

Into the cell

b)

Out of the cell

c)

Into and out equally (equilibrium)

37.

Active transport is the movement of large materials across a cell membrane from ______ to ______ concentration

a)

high to low

b)

low to high

c)

high to high

d)

low to low

38.

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

39.

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

40.

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

a)

vesicles

b)

large vacuole

c)

mitochondria

d)

lysosome

41.

The movement of large quantity of solutes or liquid into the cell

a)

exocytosis

b)

facilitated diffusion

c)

pinocytosis

d)

phagocytosis

42.
When cells take in food particles through active transport, what is it called?
a)
Pinocytosis
b)
Phagocytosis
c)
Exocytosis
d)
Osmosis

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