Plant Structure and Function: Interactive Quizzes for Year 3 Science

Question 1

What is the job of the flower?

Accepted Answer

To make seeds

Answer

To take in water

Answer

To move water

Answer

To make food

Question 2

Which part of the plant helps it grow and stand up?

Accepted Answer

Stem

Answer

Roots

Answer

Leaves

Answer

Flower

Question 3

What is the green stuff in leaves that helps them make food called?

Accepted Answer

Chlorophyll

Answer

Glucose

Answer

Oxygen

Answer

Water

Question 4

What is the process called when plants use sunlight to make food?

Accepted Answer

Photosynthesis

Answer

Breathing

Answer

Sweating

Answer

Growing

Question 5

Which of these is NOT a part of a plant?

Accepted Answer

Animal

Answer

Root

Answer

Stem

Answer

Leaf

Question 6

Which of these is NOT a function of a stem?

Accepted Answer

Producing flowers and seeds

Answer

Transporting water and nutrients

Answer

Supporting the plant

Answer

Storing food

Question 7

Which substance present in leaves helps them make food?

Accepted Answer

Chlorophyll

Answer

Starch

Answer

Sugar

Answer

Water

Question 8

Why do plants have flowers?

Accepted Answer

To attract insects for pollination

Answer

To help them grow taller

Answer

To store food

Answer

To provide shelter for animals

Question 9

What are the small holes on leaves called?

Accepted Answer

Stomata

Answer

Pores

Answer

Veins

Answer

Cuticle

Question 10

Which part of a plant transports water and nutrients throughout the plant?

Accepted Answer

Xylem

Answer

Phloem

Answer

Cambium

Answer

Pith

Question 11

What is the purpose of green leaves in plants?

Accepted Answer

Making food through photosynthesis

Answer

Storing food

Answer

Protecting the plant from insects

Answer

Attracting animals to the plant

Question 12

Which part of the plant takes in water and nutrients from the ground?

Accepted Answer

Root

Answer

Stem

Answer

Leaf

Answer

Flower

Question 13

What is the green substance in leaves that helps them absorb sunlight for photosynthesis?

Accepted Answer

Chlorophyll

Answer

Carotene

Answer

Xanthophyll

Answer

Glycogen

Question 14

Which of these is NOT a job of stems?

Accepted Answer

Make food

Answer

Carry water and nutrients

Answer

Hold up leaves

Answer

Store water

Question 15

What are the tiny holes on the surface of leaves called?

Accepted Answer

Stomata

Answer

Chloroplasts

Answer

Xylem

Answer

Phloem

Question 16

Which part of the plant produces seeds?

Accepted Answer

Flower

Answer

Root

Answer

Stem

Answer

Leaf

Question 17

What is the job of xylem in plants?

Accepted Answer

Carries water and minerals

Answer

Carries nutrients

Answer

Stores food

Answer

Supports the plant

Question 18

How do plants make their own food?

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Transpiration

Answer

Germination

Question 19

What is the difference between a deciduous tree and an evergreen tree?

Accepted Answer

Deciduous trees lose their leaves in winter, while evergreen trees keep their leaves all year round.

Answer

Deciduous trees have broad leaves, while evergreen trees have needle-like leaves.

Answer

Deciduous trees grow in warm climates, while evergreen trees grow in cold climates.

Answer

Deciduous trees do not have flowers, while evergreen trees do.

Question 20

What part of the plant takes in water and nutrients from the soil?

Accepted Answer

Roots

Answer

Stem

Answer

Leaves

Answer

Flowers

Question 21

Which part of the plant moves water and nutrients around?

Accepted Answer

Stem

Answer

Roots

Answer

Leaves

Answer

Flowers

Question 22

What is the special name for the process when plants make their own food?

Accepted Answer

Photosynthesis

Answer

Digestion

Answer

Respiration

Answer

Excretion

Question 23

What 3 things do plants need to make their own food?

Accepted Answer

Sunlight, water, and carbon dioxide

Answer

Soil, air, and fertilizer

Answer

Heat, light, and oxygen

Answer

Nutrients, vitamins, and water

Question 24

What part of the plant takes in water and nutrients from the soil?

Accepted Answer

Roots

Answer

Stems

Answer

Leaves

Answer

Flowers

Question 25

What is the name for the way plants release water into the air?

Accepted Answer

Transpiration

Answer

Breathing

Answer

Making food

Answer

Germinating

Question 26

What does the 'skin' of a leaf do?

Accepted Answer

Protects the leaf

Answer

Reflects sunlight

Answer

Lets water out

Answer

Takes in carbon dioxide

Question 27

What is the process called when a seed starts to grow?

Accepted Answer

Germination

Answer

Pollination

Answer

Fertilization

Answer

Transpiration

Question 28

What part of the plant takes in water and nutrients from the ground?

Accepted Answer

Root

Answer

Stem

Answer

Leaf

Answer

Flower

Question 29

What is the most important job of the stem?

Accepted Answer

To move water and nutrients

Answer

To take in sunlight for photosynthesis

Answer

To store food

Answer

To attract insects

Question 30

What part of the leaf is green and contains chlorophyll?

Accepted Answer

Blade

Answer

Vein

Answer

Stoma

Answer

Petiole

Question 31

Which part of the plant makes seeds?

Accepted Answer

Flower

Answer

Root

Answer

Stem

Answer

Leaf

Question 32

What do the water-carrying tubes in plants do?

Accepted Answer

Move water and minerals

Answer

Store food

Answer

Hold the plant up

Answer

Make flowers

Question 33

How do plants use sunlight to make their own food?

Accepted Answer

Photosynthesis

Answer

Breathing

Answer

Sweating

Answer

Digestion

Question 34

Which part of a leaf contains chloroplasts, which are responsible for absorbing sunlight and carrying out photosynthesis?

Accepted Answer

Chloroplasts

Answer

Veins

Answer

Stomata

Answer

Cuticle

Question 35

How does water move from the roots to the leaves of a plant?

Accepted Answer

Through the stem

Answer

Through the soil

Answer

Through the leaves

Answer

Through the air

Question 36

Which part of the plant collects water and nutrients from the ground?

Accepted Answer

Roots

Answer

Stem

Answer

Flower

Answer

Leaves

Question 37

What is the main purpose of stems in a plant?

Accepted Answer

To transport water and nutrients

Answer

To store food

Answer

To absorb sunlight

Answer

To create flowers

Question 38

Which part of a plant uses sunlight to make food?

Accepted Answer

Leaves

Answer

Roots

Answer

Flowers

Answer

Stems

Question 39

What is the name of the process by which plants use sunlight to make energy?

Accepted Answer

Photosynthesis

Answer

Pollination

Answer

Transpiration

Answer

Respiration

Question 40

What is the green substance in plants that helps them make food?

Accepted Answer

Chlorophyll

Answer

Melanin

Answer

Anthocyanins

Answer

Carotenoids

Question 41

Which part of the plant carries water from the roots to the leaves?

Accepted Answer

Xylem

Answer

Epidermis

Answer

Mesophyll

Answer

Phloem

Question 42

What is the purpose of tiny openings called stomata on plant leaves?

Accepted Answer

To allow gases to move in and out

Answer

To support the plant

Answer

To absorb water

Answer

To store nutrients

Question 43

Which part of the plant takes in water and nutrients from the soil?

Accepted Answer

Roots

Answer

Flower

Answer

Stem

Answer

Leaves

Question 44

Which part of the plant transports water and nutrients from the roots to the rest of the plant?

Accepted Answer

Stem

Answer

Flower

Answer

Roots

Answer

Leaves

Question 45

Which part of the plant makes food for the plant using sunlight?

Accepted Answer

Leaves

Answer

Flower

Answer

Stem

Answer

Roots

Question 46

Which part of the plant produces seeds?

Accepted Answer

Flower

Answer

Leaves

Answer

Stem

Answer

Roots

Question 47

Which of the following is a function of the stem?

Accepted Answer

Supports the leaves and flowers.

Answer

Absorbs water and nutrients from the soil.

Answer

Produces seeds.

Answer

Makes food for the plant.

Question 48

Which of the following is a type of root system?

Accepted Answer

Taproot

Answer

Stem

Answer

Leaf

Question 49

Which of the following is a part of a flower?

Accepted Answer

Petal

Answer

Root

Answer

Stem

Answer

Leaf

Question 50

Which of the following is a function of the roots?

Accepted Answer

Anchors the plant in the ground.

Answer

Makes food for the plant.

Answer

Produces seeds.

Answer

Supports the leaves and flowers.