Biology · Environmental Studies

Plant Reproduction and Germination

892 Questions

Plant reproduction and germination involve seed structure, cotyledon function, and dispersal mechanisms. These core botany concepts frequently appear in general science sections. Practice these questions to ensure better retention.

Seed germination typesSeed dispersal mechanismsCotyledons and albuminous seedsCryptogamic plantsPhanerogams reproduction

Plant Reproduction and Germination Questions

Multiple choice botany transport in plants osmotic relations of plant cells transport across membrane imbibition and its importance

Choose the correct answers from the alternatives given.
The first process by which water enters into the seed coat when a seed is placed in a suitable situation for germination is

  1. Root pressure

  2. Absorption

  3. Osmosis

  4. Imbibition
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Imbibition is the process of absorption of water by hydrophilic solid particles. It is a special type of diffusion as the water moves along its concentration gradient. The classical example includes the absorption of water by seeds. This process plays an important role in the germination of seed, rupturing of the seed coat, and the emergence of seedlings is due to imbibition pressure developed by the seed kernel.

Hence, the correct answer is 'Imbibition'.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Seeds which are used as Jeweller's weight ______________.

  1. Xanthium

  2. Abrus precatorius

  3. Calotropis

  4. Thespasia
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Abrus precatorius seeds were used as Jeweller's weight. This is because, the seeds of this plant have very consistent weight approximately 105 mg
So, the correct answer is 'Abrus precatorius'
Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Oil seed is

  1. <p>Lens culinaris</p>

  2. <p>Arachis hypogea</p>

  3. <p>Trifolium alexandrium</p>

  4. <p>Phaseolus mungo</p>
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Peanut or groundnut, taxonomically classified as Arachis hypogaea is a legume crop grown mainly for its edible seed and oil present in the seed. It is widely grown in tropics and subtropics, is important to both small and large commercial producers. It is classified both as a grain legume and as an oil crop. Peanut oil is used in cooking. So, the correct answer is 'Arachis hypogaea'.

Multiple choice botany families of angiosperms family fabaceae eudicots family - fabaceae, sativum and solanaceae study of some important families

Oil found in groundnut accumulates in

  1. Embryo

  2. Cotyledons

  3. Endosperm

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Arachis hypogaea, commonly known as groundnut or peanut is a legume crop which is grown mainly for its edible seeds and oil present in the seeds i.e in cotyledons. It belongs to family Fabaceae. In groundnut, the cotyledons are the source of food and oil. Peanut oil is often used in cooking. Due to its monounsaturated content, it is considered more healthful than saturated oils and it is resistant to rancidity. So, the correct answer is 'Cotyledons'.

Multiple choice

What is the primary function of a fruit?

  1. To protect the seeds

  2. To attract animals for seed dispersal

  3. To store food reserves for the plant

  4. To produce flowers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary function of a fruit is to protect the seeds from damage and to aid in their dispersal.

Multiple choice

Which part of the flower develops into a fruit?

  1. Sepals

  2. Petals

  3. Stamens

  4. Pistil
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pistil, which contains the ovary, develops into a fruit after fertilization.

Multiple choice

What is the term used to describe the arrangement of seeds within a fruit?

  1. Placentation

  2. Dehiscence

  3. Dispersal

  4. Germination
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Placentation refers to the arrangement of seeds within a fruit, such as marginal, axile, or parietal placentation.

Multiple choice

Which type of fruit develops from a single ovary?

  1. Simple fruit

  2. Aggregate fruit

  3. Multiple fruit

  4. Accessory fruit
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A simple fruit develops from a single ovary and contains one or more seeds, such as an apple or a cherry.

Multiple choice

Which type of fruit develops from multiple ovaries of a single flower?

  1. Simple fruit

  2. Aggregate fruit

  3. Multiple fruit

  4. Accessory fruit
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An aggregate fruit develops from multiple ovaries of a single flower, resulting in a cluster of small fruits, such as a raspberry or a blackberry.

Multiple choice

Which type of fruit develops from multiple ovaries of different flowers?

  1. Simple fruit

  2. Aggregate fruit

  3. Multiple fruit

  4. Accessory fruit
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A multiple fruit develops from multiple ovaries of different flowers, resulting in a single fruit with multiple seeds, such as a pineapple or a fig.

Multiple choice

Which type of fruit develops from the fusion of an ovary with other floral parts?

  1. Simple fruit

  2. Aggregate fruit

  3. Multiple fruit

  4. Accessory fruit
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An accessory fruit develops from the fusion of an ovary with other floral parts, such as the receptacle or the calyx, resulting in a fruit with a unique structure, such as an apple or a strawberry.

Multiple choice

What is the process by which a fruit splits open to release its seeds called?

  1. Dehiscence

  2. Dispersal

  3. Germination

  4. Ripening
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dehiscence is the process by which a fruit splits open to release its seeds, such as the splitting of a pod or the opening of a capsule.

Multiple choice

What is the process by which seeds are carried away from the parent plant called?

  1. Dehiscence

  2. Dispersal

  3. Germination

  4. Ripening
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dispersal is the process by which seeds are carried away from the parent plant by various means, such as wind, water, animals, or mechanical mechanisms.

Multiple choice

What is the process by which a seed germinates and grows into a new plant called?

  1. Dehiscence

  2. Dispersal

  3. Germination

  4. Ripening
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Germination is the process by which a seed germinates and grows into a new plant, involving the absorption of water, emergence of the radicle, and development of the plumule.

Multiple choice

What is the process by which a fruit matures and becomes ready to be eaten called?

  1. Dehiscence

  2. Dispersal

  3. Germination

  4. Ripening
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ripening is the process by which a fruit matures and becomes ready to be eaten, involving changes in color, texture, flavor, and nutritional content.