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Tropisms Pretest

Total questions: 20

Worksheet time: 14mins

Name
Class
Date
1.

Plants reacting to gravity is called:

a)

Phototropism

b)

Geotropism/Gravitropism

c)

Germination

d)

Thigmotropism

2.

A seed first starting to sprout by its root digging into the soil is:

a)

Phototropism

b)

Gravitropism/Geotropism

c)

Thigmotropism

d)

Germination

3.

In order for a seed to germinate, it needs water and ???

a)

Soil

b)

Turgor pressure

c)

Energy/heat

d)

Food

4.

Plants curling around a pole or mailbox is an example of:

a)

Phototropism

b)

Germination

c)

Turgor pressure

d)

Thigmotropism

5.

Wilting is a plant's response to:

a)

High turgor pressure

b)

Low turgor pressure

c)

Gravity

d)

Sunlight

6.

When plants grow in towards the light, this is called:

a)

Phototropism

b)

Geotropism

c)

Germination

d)

Thigmotropism

7.

Turgor pressure is a result of water in what plant cell organelle?

a)

Mitochondrion

b)

Nucleus

c)

Cell wall

d)

Vacuole

8.

This photo shows positive ???

a)

Geotropism

b)

Germination

c)

Thigmotropism

d)

Phototropism

9.

This plant's response to touch is ???

a)

Phototropism

b)

Germination

c)

Thigmotropism

d)

Gravitropism/geotropism

10.

What process is shown here in the very first three pictures?

a)

Phototropism

b)

Gravitropism/geotropism

c)

Nastic movements

d)

Germination

11.

Which part of the plant shows positive geotropism?

a)

Stem

b)

Leaves

c)

Roots

d)

Seed

12.

Which part of the plant shows negative geotropism?

a)

The roots

b)

The leaves and stem

13.

Which part of the plant shows positive phototropism?

a)

The roots

b)

Stems and leaves

14.

Which part of the plant shows negative phototropism?

a)

Leaves and stems

b)

Roots

15.

In this picture, what is the stimulus?

a)

The hand

b)

The hot pan

c)

Pulling away the hand quickly

d)

Lighting the stove

16.

In this picture, what is the response?

a)

The pan

b)

The hot stove

c)

Pulling away the hand quickly

d)

Lighting the fire

17.

True or False? Plants have tissues and organs.

a)

True

b)

False

18.

This is a great example of what tropism?

a)

Phototropism

b)

Gravitropism/Geotropism

c)

Germination

d)

Thigmotropism

19.

What do seasonal changes cause a tree to do in the winter?

a)

Wilt

b)

Propagate

c)

Express high turgor pressure

d)

Enter dormancy

20.

True or false? These seeds are alive.

a)

True

b)

False