Biology
State whether the following statements are True or False.
- Some seeds have no cotyledons.
- Warmth is necessary for the germination of seed.
- All seed have two cotyledons.
- Oxygen is necessary for the germination of seed.
Answer
- False
Reason — Seeds always have cotyledons. Seeds are of two types — monocotyledons having a single cotyledon and dicotyledons having two cotyledons. - True
Reason — Warmth or a suitable temperature is necessary for germination of seeds because enzymes are inactive at low temperatures and get destroyed at higher temperatures. - False
Reason — Seeds are of two types — monocotyledons having a single cotyledon and dicotyledons having two cotyledons. - True
Reason — Oxygen is required to oxidize the stored food and release energy required for the growth of the embryo.
Related Questions
Give two main functions of a fruit.
Radicle emerges out of the seed earlier than plumule. State one advantage served by this.
State one function of the following:
- Radicle
- Cotyledons
- Endosperm
- Micropyle
The three conditions necessary for germination of seeds are (tick the correct answer):
- Oxygen, suitable temperature and water.
- Good soil, water and air.
- Good soil, suitable temperature and light.
- Light, oxygen and temperature.
- Oxygen, carbon dioxide and light.