Biology · Environmental Studies

Plant Reproduction and Germination

835 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

Consider the following statements:

  1. Mustard and pea are angiosperms (seeds enclosed in fruits).
  2. All mammals are categorised under vertebrates.

Which of the given statements is/are correct?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Statement 1 is correct. Plants are categorised as angiosperms (seeds enclosed in fruits) and gymnosperms (naked seeds) Mustard and pea are angiosperms, i.e. their seeds are enclosed in fruits. Statement 2 is also correct. All mammals have a spine or a backbone. Therefore, they are categorised under vertebrates.

Multiple choice

Directions: Answer the following question by selecting the most appropriate option.

The concept of 'seed germination' can be taught best by

  1. asking the students to perform an activity to sow seeds, observe different stages and draw them

  2. showing photographs of seed germination

  3. showing germinated seeds to the class and explaining the process of germination

  4. presenting the germination stages through drawings on the board
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hands-on experiential learning (A) is most effective for biological concepts like seed germination. Students observe the actual process firsthand, engage with the material, and document stages - creating deeper understanding than passive methods like photographs (B), explanation only (C), or drawings (D).

Multiple choice

Seeds when soaked in water imbibe due to _________________.

  1. low osmotic pressure inside the seed

  2. seed coat containing lot of salts

  3. the working of the process of absorption

  4. many vacuoles in the endosperm

  5. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Seeds when soaked in water imbibe because the process of absorption works.

Multiple choice

Albuminous seeds mainly contain

  1. endosperm

  2. perisperm

  3. cotyledons

  4. coleoptile

  5. -
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

If the seed has a large amount of endosperm as a result of its larger synthesis or less utilisation until the seed germinates, it is called endospermic or albuminous seed.

Multiple choice

_______ of water lead(s) to swelling of the seed.

  1. Imbibition

  2. Releasing

  3. Inhibition

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Imbibition is a special type of diffusion when water is absorbed by solids-colloids, causing an enormous increase in volume. Examples include the absorption of water by seeds and dry wood.

Multiple choice

At what stage of the vegetative growth of crops are weedicides sprayed in the fields?

  1. Before sowing seeds

  2. After flowering

  3. Just before harvesting

  4. Before flowering

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Weedicides should be sprayed during the vegetative growth stage of weeds but before flowering. This timing prevents weeds from producing seeds that would infest the field in future seasons. Spraying after flowering is less effective as seeds may already be mature, and spraying before crop emergence risks damaging the crop itself.

Multiple choice

Seed germination requires

  1. water

  2. oxygen

  3. Both 1 and 2

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

 Seed germination requires both water and oxygen