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B3 Movement of Molecules

Total questions: 15

Worksheet time: 17mins

Name
Class
Date
1.
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
2.
In the given scenario what will happen?  An egg is placed in pure water for 48 hours.
a)
The egg will gain water and swell.
b)
Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
c)
The egg will lose water and shrink.
3.
Ideally, your cells should be in a(n) _______ solution
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Cola
4.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
5.

Diffusion and osmosis are examples of passive transport and require no...

a)
concentration gradients
b)
osmosis
c)
motion
d)
energy
6.
Which cell is placed into a hypotonic environment? 
a)
A
b)
B
c)
C
7.
What is diffusion?
a)
when molecules move 
b)

when molecules move from a high concentration to a low concentration

c)
no movement 
d)
molecules move everywhere
8.
Which diagram best shows the end result of diffusion?
a)
F
b)
G
c)
H
d)
J
9.
What type of cellular transport uses energy?
a)
Passive Transport
b)
Active Transport
10.
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
11.
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.
12.

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

13.

Which diagram shows the condition of a leaf palisade cell after it has been placed in a hypertonic sugar solution for an hour?

a)

A

b)

B

c)

C

d)

D

14.

Which of the following statements would be true in relation to the image?

a)

There is no net movement of water from W to X

b)

There would be movement of water from W to X

c)

Osmosis of sugar molecules would occur from X to W

d)

Solution X is more dilute and therefore a higher water potential. Water moves from X to W

15.

Two identical cubes of beetroot are cut, both weighing 3.0g. Cube S is placed in concentrated salt solution and cube T is placed in pure water. What would be the masses be after 3 hours?

a)

A

b)

B

c)

C

d)

D