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Plants: flower parts, photosynthesis, & tropisms

Total questions: 40

Worksheet time: 30mins

Name
Class
Date
1.

What is causing this plant to bend toward the light

a)

gravitropism

b)

thigmotropism

c)

the wind

d)

phototropism

2.

Which statement about photosynthesis is correct?

a)

Plants get the energy they need for photosynthesis from water.

b)

Plants get the energy they need for photosynthesis from soil.

c)

Plants get the energy they need for photosynthesis from sunlight which is captured by the leaves.

d)

Plants do not require energy to perform photosynthesis.

3.

If the xylem is damaged will water be able to flow to the leaves

a)

No

b)

Yes

4.

7. When someone touches a mimosa plant the leaves rapidly close. This is an example of which of the following?

a)

Gravitropism

b)

Thigmotropism

c)

Phototropism

d)

shyness

5.

This is an example of?

a)

hydrotropism

b)

phototropism

c)

thigmotropism

d)

gravitropism

6.

Positive gravitropism cause roots to always grow

a)

upward

b)

downward

c)

to the left

d)

to the right

7.

Storing water has allowed desert plants to __________________.

a)

limit use of sunlight

b)

never get thirsty

c)

adapt to their environment

8.

Morning Glory plants climb fences by using a thigmotropism. This means it responds to __________.

a)

touch

b)

gravity

c)

water

d)

light

9.

What is the main function of the chloroplast within a plant cell?

a)

make glucose

b)

breakdown food

c)

control the cell

d)

protect the cell

10.
what is a cell classified as?
a)
a basic unit of structure and function of all living organisms
b)
a unit based on only plants and animals that are living
11.

All cells -----

a)

come from other dead cells

b)

come from other living cells

c)

crystallize out of the air

12.

1-Photosynthesis is the process in which plants make their own

a)

A.oxygen

b)

B.carbon dioxide

c)

C.water

d)

D.food

13.

What items do plants need in order to make their own food?

a)

A.Water, sunlight, carbon dioxide

b)

B.Water, sunlight, oxygen

c)

C.Minerals, water, and oxygen D

d)

.Sunlight, oxygen, minerals

14.

Plants take all the _____________ we breathe out.

a)

carbon dioxide

b)

air

15.

Plants take energy from the sun and make their own food in the form of _________________.

a)

carbon dioxide

b)

glucose

16.

._____________ is the part of the plant where seed are growing.

a)

fruit

b)

stem

c)

leaf

d)

root

17.

Plants use water, carbon dioxide, and the ________________to make oxygen gas for us to breathe.

a)

glucose

b)

carbon monoxide

c)

sun

d)

all of the above

18.

H2O stands for

a)

carbon dioxide

b)

water

c)

oxygen

d)

glucose

19.

Which process requires carbon dioxide and water in order to create glucose?

a)

respiration

b)

photosynthesis

c)

digestion

20.

Which group of organisms perform photosynthesis?

a)

consumers

b)

carnivores

c)

omnivores

d)

producers

21.

The process where plants bend toward light is called

a)

gravitropism

b)

phototropism

c)

thigmotropism

d)

none of the above

22.

which part of a plant supports leaves?

a)

stem

b)

roots

c)

fruit

d)

flower

23.

Which part of a plant -anchors a plant in soil?

a)

leaf

b)

seed

c)

roots

d)

stem

24.
A _______ plant has true roots, stems and leaves.
a)
Vascular
b)
Nonvascular
25.
Which gets water directly from their environment?
a)
Vascular Plants
b)
Nonvascular Plants
26.

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

27.

What is gravitropism/geotropism?

a)

The movement of a plant in response to gravity

b)

The movement of a plant in response to earthquakes

c)

The movement of bacteria in response to changes in temperature

d)

The movement of plants towards water

28.

True or False: Gravitropism can be either negative or positive

a)

True

b)

False

29.

What is phototropism?

a)

The movement of plants towards light

b)

The movement of plants away from light

c)

The movement of plants in response to infrared light

d)

The movement of plants towards water

30.

What part of the plant responds positively to gravity?

a)

roots

b)

xylem

c)

leaves

31.

This plant is growing its roots towards water, this is an example of ___________.

a)

phototropism

b)

thigmotropism

c)

gravitropism

d)

hydrotropism

32.

Which type of plant produces a flower?

a)

angiosperm

b)

gymnosperm

c)

both

33.

Gymnosperms reproduce with

a)

cones

b)

fruit

c)

flowers

34.

What part covers and protects the flower bud?

a)

petal

b)

sepal

c)

stamen

35.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + glucose
b)
CO2 + glucose + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + glucose
d)
CO2 + O2 + H2O --> Light+ glucose
36.

What part of the plant absorbs carbon dioxide?

a)

stomata of leaves

b)

the roots

c)

the flower

37.

Name the parts of a flower.

What is number 1 called?

a)

Stamen

b)

Pistil

c)

Petal

d)

Sepal

38.

Name the parts of a flower.

What is number 2 called?

a)

Stamen

b)

Pistil

c)

Petal

d)

Sepal

39.

Name the parts of a flower.

What is number 3 called?

a)

Pistil

b)

Petal

c)

Sepal

d)

Stamen

40.

Name the parts of a flower.

What is number 4 called?

a)

Petal

b)

Stamen

c)

Sepal

d)

Pistil