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Responses in plants

Total questions: 16

Worksheet time: 28mins

Name
Class
Date
1.

The roots and stem of this plant are demonstrating?

a)

How temperature affects plants.

b)

How gravity affects plants.

c)

How air affects plants.

d)

How leaves affect plants.

2.

What are the three stimuli’s plants respond to?

a)

Sun, flowers, pumpkins

b)

Light, Gravity, Grass

c)

Light, Gravity, Stimuli

d)

Light Gravity, Temperature

3.

Plants tend to grow towards where the ________ is.

a)

Dark

b)

Cold

c)

Light

d)

Heat

4.

The roots of a plant grow down because of what stimuli?

a)

Gravity

b)

Light

c)

Temperature

d)

All of the above

5.

How do stems respond to light?

a)

It grows away from the light

b)

It grows towards the trees

c)

It grows towards the roots

d)

It grows towards the light

6.

In photosynthesis, plants use

water, carbon dioxide, and ______ to release oxygen into the air.

a)

Roots

b)

Temperature

c)

Light

d)

Gravity

7.

Sunlight + Water + Air = Food

What is this process called?

a)

Response to Stimuli

b)

Stimuli

c)

Photosynthesis

d)

Temperature

8.

What is stimuli?

a)

changes in an organism’s environment that cause a response.

b)

plant’s response to the number of hours of darkness in its environment.

c)

substances that act as chemical messengers within plants.

d)

growth toward a stimulus.

9.

What is an example of a stimulus for plants?

a)

Touch

b)

Light

c)

Gravity

d)

Water

e)

all of the above

10.

what type of tropism is occurring here?

a)

Phototropism

b)

Thigmotropism

c)

Gravitropism

d)

Hydrotropism

11.

Mimosa sp. responds to touch by folding its leaves inwards when touched. The responds occurs rapidly.

a)

Thigmotropism

b)

Phototropism

c)

Geotropism

d)

Nastic movement

12.

Changes in an organism's environment that cause a response

a)

Tropism

b)

Stimuli

c)

Hormone

d)

Response

13.

When the plant grows toward the light.

a)

Negative hydrotropism

b)

Positive geotropism

c)

Negative phototropism

d)

Positive phototropism

14.

What type of tropism response to water?

(a)  

15.

A vine plant brushes against a fence and wraps itself around the fence. What type of tropism is occurring here?

(a)  

16.

Plant’s roots grow down, anchoring it into the soil. To what stimulus is the plant responding?

(a)