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TRANSPORT IN PLANTS (A)

Total questions: 25

Worksheet time: 8mins

Name
Class
Date
1.

The plant tissue that carries organic food materials DOWNWARD from the leaves to the rest of the pant is the ______.

a)

Phloem

b)

Stomata

c)

Chlorophyll

d)

Xylem

2.

Vascular tissue that transports water and minerals ions UPWARDS from a plant's roots is know as ______.

a)

Chlorophyll

b)

Phloem

c)

Stomata

d)

Xylem

3.

The plant transport system are made up of ____ types of vascular tissue.

a)

1

b)

2

c)

3

d)

many

4.

How do water enter the roots from the soil water?

a)

diffusion

b)

osmosis

c)

transpiration

d)

active transport

5.

Water vapour lost from the surface of the leaves through...

a)

the stomata

b)

the epidermis

c)

the palisade cells

d)

the spongy mesophyll

6.

Transpiration is...

a)

the movement of water through a plant from the roots up the stem

b)

the loss of water in the form of water vapour from the surface of the leaves of a plant by the process of evaporation

c)

the flow of water into plant roots by osmosis from the soil

d)

the process of minerals and sugars moving through plant veins

7.
Why is the evaporation of water from leaves important?
a)
It cools leaves and helps move water up the plant.
b)
It makes the plant wilt
c)
It helps the plant to respire
8.
Which of these is true?
a)
Xylem vessels carry water and dissolved minerals up the plant
b)
Phloem tissue carry water and dissolved minerals up the plant
c)
Xylem vessels carry dissolved sucrose up and down the plant
9.
What happens to the transpiration rate as light intensity increases?
a)
It increases
b)
It stays the same
c)
It decreases
10.

What does xylem transport?

a)

Water and mineral ions

b)

Water only

c)

Sugar

d)

Food

11.

Is mature xylem alive or dead?

a)

Alive

b)

Dead

12.

What do the guard cells do?

a)

Control active transport

b)

Control nutrients moving into the cell

c)

Controls the rate of transpiration (loss of water through stomata)

d)

controls the size of stomata

13.

Which environmental condition lowers the rate of transpiration?

a)

Abundant sunshine

b)

High humidity

c)

Windy day

d)

High temperatures

14.

Are phloem cells alive or dead when matured?

a)

Alive

b)

Dead

15.

The most common sugar made by plants is?

a)

Sucrose

b)

Gluten

c)

Cellulose

d)

Carbohydrates

16.

Students are instructed to place leafy celery stalks into red colour water in a beaker overnight. The following day, the students observed the colour of the celery leaves changed from green to red. The students cut across the edge of the celery and observed the small tube openings along the edge are also red.


How do the plant systems work together to make the movement of the liquid possible?

a)

The roots absorb the water and minerals move up the stem, while the stem moves food produced in the leaves down to the roots.

b)

The roots anchor the plant into the soil and the stem holds the leaves up.

c)

The roots absorb their own water and minerals and the leaves push out CO2.

d)

The roots lose water vapour to the soil and the stem loses water vapour through the leaves.

17.

The diagram shows the internal structure of a leaf.


Which region contains cells that are responsible for the transport of organic food substances?

a)

A

b)

B

c)

C

d)

D

18.

A leafy shoot was placed in the apparatus shown. The rate of movement of the air bubble was measured.


Which change would make the air bubble move faster?

a)

blowing dry air over the shoot

b)

decreasing the air temperature around the shoot

c)

increasing the humidity around the shoot

d)

removing some leaves from the shoot

19.

The diagram shows a section through a typical leaf.


How does water move from point X to point Y?

a)

diffusion and evaporation only

b)

evaporation only

c)

osmosis, evaporation and diffusion

d)

osmosis only

20.
Most chloroplast are found in the
a)
palisade mesophyll
b)
spongy mesophyll
c)
epidermis
d)
xylem
21.
Xylem vessel elements are strengthened by
a)
lignin
b)
cellulose
c)
melanin
d)
pericycle
22.
How will lowered humidity affect the rate of transpiration?
a)
decrease it
b)
increase it
c)
no change
d)
it depends
23.
An increase in wind or temperature will ________________ transpiration
a)
increase
b)
decrease
c)
no change
d)
none
24.
The lamina is broad to increase surface area for maximum absorption of light energy.
a)
True
b)
False
25.
Excess glucose is converted to glycogen for storage in plants.
a)
True
b)
False