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Absorption by Roots

Total questions: 20

Worksheet time: 13mins

Name
Class
Date
1.

What is the diffusion of water only across a cell or semi-permeable membrane?

a)

Osmosis

b)

Diffusion

c)

Active Transport

2.
What type of cellular transport uses energy?
a)
Passive Transport
b)
Active Transport
3.
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
4.
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.
5.
Diffusion and Osmosis are examples of...
a)
Active Transport
b)
Passive Transport
6.
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
7.
 If the volume of a cell increases when it is placed in a solution, that solution is said to be __________ to the cell
a)
 hypertonic
b)
subatomic
c)
 isotonic
d)
 hypotonic 
8.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
9.

Which of the following does not help in ascent of sap

a)

Capillarity

b)

Adhesion

c)

Cohesion

d)

Gravity

e)

Transpirational pull

10.

Absorption of water by the plant cell by surface attraction is called:

a)

diffusion

b)

osmosis

c)

imbibition

d)

active transport

11.

what is responsible for guttation?

a)

osmotic pressure

b)

root pressure

c)

suction pressure

d)

capillarity

12.

_______ is not an example of semipermeable membrane

a)

Cell Membrane

b)

animal bladder

c)

egg membrane

d)

cell wall

13.

oozing out of water drops from injured parts of plant is called

a)

bleeding

b)

guttation

c)

transpiration

14.

plants absorb water by their ………………………

a)

roots

b)

root hairs

c)

stem

d)

leaves

15.

Which of the following objects cannot absorb water?

a)
b)
c)
d)
16.
xylem: water transport
phloem : food transport
a)
TRUE
b)
FALSE
17.

Water is carried upward in the xylem by way of the cohesive and adhesive forces of

a)

capillarity

b)

transpiration pull

c)

osmosis

18.

____ causes plasmolysis

a)

diffusion

b)

exosmosis

19.

The state of a cell in which the cell wall is rigid and stretched by the increase in volume due to the absorption of water is called

a)

Turgiyt

b)

Capillarity

c)

Turgidity

20.

The pressure exerted by the cell wall on the cell content

a)

Turgidity

b)

Wall Pressure

c)

Turgor Pressure

d)

Flaccidity

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