The Life of Plants
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Photosynthesis: How Plants Make Food
SubtopicPhotosynthesis: How Plants Make Food under The Life of Plants for Grade 4 CBSE.
Preview questions (no answers)
- 1.
A leaf that has no starch will turn which color when iodine is added?
A.Blue-black
B.Dark purple
C.Brownish or no change
D.Green
- 2.
Which of these is the correct order of the starch test on a leaf?
A.Boil in water -> Boil in alcohol -> Wash in cold water -> Add iodine
B.Add iodine -> Boil in water -> Boil in alcohol
C.Boil in alcohol -> Wash in cold water -> Boil in water -> Add iodine
D.Wash in cold water -> Add iodine -> Boil in water
- 3.
Why do plants need the food they produce?
A.Only to look green
B.For growth and energy
C.To attract birds
D.To keep the soil wet
- 4.
Which part of the leaf is represented by the central thick line from which side veins emerge?
A.Petiole
B.Midrib
C.Apex
D.Blade
- 5.
How do Venus Flytraps get nutrition, considering they also have green leaves?
A.They only eat insects and do not perform photosynthesis
B.They perform photosynthesis for energy but catch insects for minerals
C.They get all their food from the soil
D.They do not need food at all
- 6.
What is the role of the stalk in a leaf?
A.It helps the leaf to stay attached and receive water from the stem
B.It is where the food is stored
C.It gives the leaf its green color
D.It releases carbon dioxide
- 7.
Which of these is NOT a result of the process of photosynthesis?
A.Production of Glucose
B.Release of Oxygen
C.Release of Carbon Dioxide
D.Storage of Energy
- 8.
If you keep a plant in a room with only green light, why might it fail to grow well?
A.Green light is too hot for the leaves
B.Chlorophyll reflects green light and doesn't absorb it well for energy
C.Green light turns into Carbon Dioxide in the air
D.Green light prevents the roots from taking up water
- 9.
Why is it important to wash the leaf in cold water after boiling it in alcohol during the starch test?
A.To wash away the iodine
B.To make the leaf green again
C.To remove the alcohol and soften the leaf
D.To stop the plant from performing photosynthesis
- 10.
Which of these describes an 'insectivorous' plant's behavior?
A.It uses insects to carry its seeds to other places
B.It makes food using sunlight but eats insects for minerals
C.It only eats insects and does not need sunlight
D.It provides food to insects in exchange for protection
Download the worksheet for The Life of Plants - Photosynthesis: How Plants Make Food to practice offline. It includes additional chapter-level practice questions.
Terrestrial and Aquatic Adaptations
SubtopicTerrestrial and Aquatic Adaptations under The Life of Plants for Grade 4 CBSE.
Preview questions (no answers)
- 1.
Look at the classification chart below. Which word should replace 'X' to correctly name the group of plants that live in water?
A.Aquatic plants
B.Terrestrial plants
C.Desert plants
D.Mountain plants
- 2.
Which part of the grass plant provides food for humans and animals?
A.The seeds (grains)
B.The roots
C.The bark
D.The thorns
- 3.
Which of these plants grows in a terrestrial habitat with moderate rainfall and temperature?
A.Water lily
B.Banyan
C.Hydrilla
D.Mangrove
- 4.
The spines of a cactus are actually modified ______.
A.Stems
B.Roots
C.Leaves
D.Flowers
- 5.
A plant has been modified to have very few or no leaves at all. In which habitat is this plant most likely found?
A.A tropical rainforest
B.A freshwater pond
C.A dry desert
D.A snowy mountain
- 6.
Which of the following is an example of a submerged (underwater) plant?
A.Water Lily
B.Duckweed
C.Tape Grass
D.Lotus
- 7.
Which part of the Pitcher plant is modified into the shape of a pitcher?
A.The root
B.The stem
C.The leaf
D.The flower
- 8.
Which plant shows a 'behavioral' adaptation of closing its leaves when it is touched or when an insect lands on it?
A.Cactus
B.Venus Flytrap
C.Lotus
D.Mangrove
- 9.
What specific challenge do plants living on the 'forest floor' of a dense jungle face?
A.Lack of water due to tall trees absorbing it all
B.Extreme cold temperatures at night
C.Lack of sunlight for photosynthesis
D.Too much oxygen in the air
- 10.
If you observe a plant with very large, thin leaves, it is likely adapted to an environment with:
A.Very little water and high sunlight
B.Plenty of water and low light (like the floor of a rainforest)
C.Strong winds and very cold temperatures
D.High salt content in the soil
Download the worksheet for The Life of Plants - Terrestrial and Aquatic Adaptations to practice offline. It includes additional chapter-level practice questions.
Roots and Their Functions
SubtopicRoots and Their Functions under The Life of Plants for Grade 4 CBSE.
Preview questions (no answers)
- 1.
Which of these describes a fibrous root?
A.A thick central root
B.A group of roots of similar size
C.Roots that grow on leaves
D.Roots that grow on fruits
- 2.
What is the primary reason roots grow deep into the earth?
A.To hide from animals
B.To search for water
C.To stay cool
D.To reach the other side of the world
- 3.
The root system of a plant depends on the type of _______ it grows from.
A.Flower
B.Seed
C.Leaf
D.Fruit
- 4.
Which of these is a vegetable that is NOT a root?
A.Turnip
B.Beetroot
C.Potato
D.Sweet potato
- 5.
The primary root is the first root that comes out of a seed. In a taproot system, what does this primary root become?
A.A leaf
B.The main thick root
C.A flower
D.Many small fibrous roots
- 6.
What would happen to a tree during a storm if its roots were shallow?
A.It would grow more leaves.
B.It would be easily uprooted by the wind.
C.It would absorb more rainwater.
D.It would turn into a shrub.
- 7.
Which of these is a similarity between a taproot and a fibrous root?
A.Both have a thick central root.
B.Both are found in the same plants.
C.Both help the plant absorb water and minerals.
D.Both store food in large quantities.
- 8.
In a 'Taproot' system, what are the branches that grow out of the main root called?
A.Tertiary roots
B.Lateral or Secondary roots
C.Adventitious roots
D.Prop roots
- 9.
Plants growing in 'Hydroponics' are grown without soil. How do their roots get the necessary minerals?
A.They make minerals from water and sunlight.
B.The minerals are dissolved in the water that the roots are submerged in.
C.They get minerals from the air.
D.They don't need minerals, only water.
- 10.
If you transplant a large tree and accidentally cut off most of its 'fine lateral roots', why might the tree die even if the thick main roots are safe?
A.The thick roots are only for show.
B.The fine lateral roots and root hairs are the main ones responsible for water absorption.
C.The tree will fall over without lateral roots.
D.The lateral roots are the only ones that can grow leaves.
Download the worksheet for The Life of Plants - Roots and Their Functions to practice offline. It includes additional chapter-level practice questions.