Question

Which of the following statements is not true?

• A. The seed coat breaks when the bean seeds germinate.
• B. On germination, the plumule gives rise to the shoot and the radicle to the root.
• C. On germination, the plumule comes out first.
• D. The seeds of chickpea, green gram and pea can be germinated.

Answer 1

The correct option is C

On germination, the plumule comes out first.

The correct option is C:
Explanation for the correct option:

1. Germination is the development of new plants from dormant embryos under suitable conditions.
2. Further development of seed takes place after the seed coat rupture due to water absorption.
3. Plumule, radicle, and cotyledons develop simultaneously into their respective structures.
4. Plumule develops into the shoot, radicle gives rise to the primary root, and cotyledons produce the first leaf of the plant.

Explanation for incorrect options:
Option A:
During germination, the seed absorbs water and swells up, this results in the rupture of the seed coat. So, the given statement is true.

Option B:
During germination, the plumule emerges from the seed coat and grows upwards to produce the main stem.
Similarly, at the time of germination, the radicle elongates in the downward direction rapidly to give rise to the primary root. So, the given statement is true.
Option C:
The seeds of chickpea, green gram, and pea can be germinated by providing adequate environmental conditions such as light, air, temperature, etc. So. the given statement is true.

Final answer: On germination, the plumule does not come out first.