Identify the correct sequence of seed germination from the steps given below: (a) After the leaves appear, then the young plants can make their own food. (b) Seed absorbs water through a hole. This softens the seed coat and it ruptures. (c) A soft shoot emerges from the seed and grows upwards. (d) During this stage, the baby plant lives on the food stored in the seed. (e) A small root emerges from the seed which grows downwards.
Identify the correct sequence of seed germination from the steps given below: (a) After the leaves appear, then the young plants can make their own food. (b) Seed absorbs water through a hole. This softens the seed coat and it ruptures. (c) A soft shoot emerges from the seed and grows upwards. (d) During this stage, the baby plant lives on the food stored in the seed. (e) A small root emerges from the seed which grows downwards. Correct Answer (b), (e), (d), (c), (a)
Concept:
Germination:
- The essential procedure by which diverse plants emerge from a single seed into a plant is known as seed germination.
- Both crop productivity and quality are affected by this process.
- The sprouting of a seedling from an angiosperm or gymnosperm seed is a common example of seed germination.
Explanation:
Step of the germination:
- First step
- Germination needs the presence of water.
- Most seeds only require adequate water to moisten them, not to soak them.
- Imbibition is the process of seeds absorbing water, which causes the seed coat to enlarge and rupture.
- Second step:
- It is one of the most essential stages of germination when the seed begins to take water from the ground.
- The radicle emerges to form a primary root.
- The activated enzymes are the ones who start the process.
- The root grows downwards.
- Third step:
- Most plants retain food storage with their seeds.
- Such as carbohydrates, proteins, or oils.
- The growing embryo receives nutrients from this food store.
- Hydrolytic enzymes are activated when the seed absorbs water.
- These stored food resources are broken down into metabolically usable molecules.
- Fourth stage:
- During the stage, by rupturing the seed covering, the plumule produces a sprout.
- The shoot rises upwards towards the soil's surface.
- Fifth stage:
- The cotyledons spread out and unfold.
- It leads to the development of the first leaves.
- After that, the plant is now ready to begin the photosynthesis process.
[ alt="620c02f2d4e99aa37bc0cd89 16534562586471" src="//storage.googleapis.com/tb-img/production/22/05/620c02f2d4e99aa37bc0cd89_16534562586471.png" style="height: 265px; width: 350px;">
Thus, the sequence of seed germination from the steps given below:
| (b) Seed absorbs water through a hole. This softens the seed coat and it ruptures. |
|
↓ |
| (e) A small root emerges from the seed which grows downwards. |
| ↓ |
| (d) During this stage, the baby plant lives on the food stored in the seed. |
| ↓ |
| (c) A soft shoot emerges from the seed and grows upwards. |
| ↓ |
| (a) After the leaves appear, then the young plants can make their own food. |
The correct sequence are (b), (e), (d), (c), (a).