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Chemical control in plants

Total questions: 12

Worksheet time: 8mins

Name
Class
Date
1.

Auxins are responsible for _____________ of a plant

a)

Colour change

b)

Watering

c)

Phototropism

d)

Growth

2.

Phototropism is

a)

The plant response to water

b)

The plant response to light

c)

The plant response to gravity

d)

The plant response to soil

3.
The root of a plant growing down. 
a)
Positive Gravitropism 
b)
Negative Gravitropism 
c)
Thigmotropism
d)
Hydrotropism
4.

what type of tropism is occurring here?

a)

phototropism

b)

thigmotropism

c)

geotropism

d)

tropictropism

5.
Which hormone promotes seed germination?
a)
abscisic acid
b)
ethylene
c)
gibberellin
d)
auxin
6.
What polysaccharide is the primary component of plant cell walls?
a)
Expansin
b)
Cellulose
c)
Glycogen
d)
Endosperm
7.

Auxins are responsible for _____________ of a plant

a)

Colour change

b)

Watering

c)

Phototropism

d)

Growth

8.

Where is auxin formed

a)

Tip of stem and root

b)

Leaves

c)

Embryo

d)

All

9.
A period of a plant when is does NOT grow
a)
spore
b)
stamen
c)
nutrient
d)
dormancy
10.

What is tropism?

a)

A plant's response to a stimulus

b)

A plant reproducing

c)

An animal's response to a stimulus

d)

A prokaryote's response to a stimulus

11.

True or False: a stimulus is anything that causes a plant to die

a)

True

b)

False

12.

What makes a tropism positive or negative?

a)

Positive = movement towards stimulus, Negative = movement away from stimulus

b)

Negative = movement towards stimulus, Positive = movement away from stimulus

c)

Who cares? It doesn't matter whether it is positive or negative

d)

Positive = when a plant is happy, Negative = when a plant is sad