Seeds and Germination
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Structure of a Seed
SubtopicStructure of a Seed under Seeds and Germination for Grade 5 CBSE.
Preview questions (no answers)
- 1.
How many cotyledons would you find in a bajra (pearl millet) seed?
A.One
B.Two
C.Three
D.Four
- 2.
Before germination, the embryo inside the seed is in a state of ______.
A.Growth
B.Rest
C.Eating
D.Walking
- 3.
Which of these seeds is very small and round, often used in Indian cooking?
A.Mango seed
B.Mustard seed
C.Coconut seed
D.Avocado seed
- 4.
The plumule and radicle together form the ______.
A.Seed coat
B.Hilum
C.Embryo
D.Micropyle
- 5.
Which structure connects the radicle and the plumule within the seed?
A.The seed coat
B.The embryonic axis
C.The hilum
D.The outer shell
- 6.
What happens to the volume of a seed when it absorbs water through the micropyle?
A.It remains the same
B.It decreases
C.It increases
D.It becomes half
- 7.
Which of the following is a characteristic of seeds that are monocotyledonous?
A.They have two cotyledons.
B.They include seeds like beans and peas.
C.They usually have seeds that cannot be split into two equal halves.
D.They always have a very soft seed coat.
- 8.
Which of these parts is NOT considered a component of the seed embryo?
A.Radicle
B.Plumule
C.Cotyledon
D.Seed Coat
- 9.
A seed is found to have a very hard, thick seed coat. What does this usually suggest about its natural environment?
A.It lives in an environment where it must survive long periods of drought or fire.
B.It lives in an environment with constant rain.
C.It is a seed that does not need to germinate.
D.It is a seed that lacks an embryo.
- 10.
What is the primary difference between the plumule of a monocot and a dicot during early growth?
A.Monocot plumules are often protected by a sheath called a coleoptile.
B.Dicot plumules do not have leaves.
C.Monocot plumules grow downwards.
D.Dicot plumules are always red.
Download the worksheet for Seeds and Germination - Structure of a Seed to practice offline. It includes additional chapter-level practice questions.
The Process of Germination
SubtopicThe Process of Germination under Seeds and Germination for Grade 5 CBSE.
Preview questions (no answers)
- 1.
Germination begins when the seed absorbs:
A.Oxygen
B.Water
C.Sunlight
D.Carbon dioxide
- 2.
A corn grain has how many seed leaves?
A.One
B.Two
C.Three
D.Zero
- 3.
Which seed is a dicot?
A.Maize
B.Rice
C.Bean
D.Wheat
- 4.
Most seeds will not germinate if they are:
A.In moist soil
B.Buried too deep where there is no air
C.In a warm place
D.Provided with water
- 5.
What is the primary role of the embryo in a seed?
A.To act as a protective covering
B.To grow into a new plant
C.To attract pollinators
D.To provide shade to the soil
- 6.
Which of these factors is most likely to vary between different types of seeds to start germination?
A.The need for water
B.The need for air
C.The specific temperature required
D.The need for an embryo
- 7.
In the process of germination, the seed coat is broken down by:
A.Internal pressure from the swelling embryo
B.The roots of other plants
C.Sunlight heating the seed
D.The hilum closing tightly
- 8.
What is the specific role of the 'Plumule' once it emerges from the soil and is exposed to light?
A.To continue searching for water deep in the ground.
B.To develop into the stem and first true leaves to begin food production.
C.To produce seeds immediately to ensure the next generation.
D.To absorb carbon dioxide for the roots to use.
- 9.
Which of the following describes the correct transition of energy source for a developing plant?
A.Sunlight Soil Minerals Stored Starch
B.Stored Starch Soil Minerals Sunlight
C.Stored Starch in Cotyledons Photosynthesis in Leaves
D.Water Oxygen Stored Starch
- 10.
If a seed is planted in soil that has been sterilized (all bacteria and fungi killed), but has water, air, and warmth, what will happen?
A.The seed will fail to germinate because it needs bacteria to digest its food.
B.The seed will germinate normally because it contains its own food and instructions.
C.The seed will grow much slower because it cannot absorb nutrients from the soil.
D.The seed will die because it needs soil fungi to break the seed coat.
Download the worksheet for Seeds and Germination - The Process of Germination to practice offline. It includes additional chapter-level practice questions.
Methods of Seed Dispersal
SubtopicMethods of Seed Dispersal under Seeds and Germination for Grade 5 CBSE.
Preview questions (no answers)
- 1.
What is the function of the radicle in a germinating seed?
A.To produce food
B.To become the root and absorb water
C.To protect the seed
D.To attract insects
- 2.
The plumule of the embryo develops into which part of the plant?
A.Root
B.Shoot
C.Fruit
D.Seed coat
- 3.
Which of these is an example of dispersal by explosion?
A.Pea
B.Coconut
C.Mango
D.Dandelion
- 4.
Cotton seeds have which feature that helps in wind dispersal?
A.Spines
B.Fluffy hair
C.Fibrous coat
D.Heavy weight
- 5.
What adaptation would a seed dispersed by strong ocean currents likely possess?
A.Wings for gliding
B.Hooks for sticking
C.A thick, woody, waterproof shell
D.A sweet-smelling pulp
- 6.
Which of these is an example of 'Zookory' (dispersal by animals)?
A.A dandelion seed floating in the air
B.A coconut floating in the sea
C.A squirrel burying an acorn
D.A pea pod bursting open
- 7.
A seed is found to have a light, spongy tissue that traps air. This seed is most likely dispersed by:
A.Wind
B.Water
C.Explosion
D.Animals
- 8.
Observe the diagram of a seed dispersal cycle and identify the missing link 'X' that represents a critical stage for seeds that rely on being eaten by animals.
A.X = Resistance to stomach acid
B.X = Ability to fly
C.X = Ability to float
D.X = Explosive pod tension
- 9.
Why do seeds dispersed by the wind, like 'Madar' (Calotropis), usually have very thin and light seed coats?
A.To allow them to absorb sunlight while flying
B.To minimize the total weight, allowing the tufts of hair to keep them aloft for longer periods
C.To ensure they break easily when they hit the ground
D.Because they don't need protection from animals
- 10.
The 'Witch Hazel' plant can shoot its seeds up to 45 feet away. This is an example of 'Ballochory'. What is the primary limitation of this method compared to 'Zoochory'?
A.It requires too much water from the plant
B.The distance is strictly limited and cannot reach new, far-off habitats like an animal can
C.The seeds are always destroyed by the force of the shot
D.It only works if there is no wind
Download the worksheet for Seeds and Germination - Methods of Seed Dispersal to practice offline. It includes additional chapter-level practice questions.