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
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.
Match the columns:
Column A Column B a) Radicle (i) Shoot b) Plumule (ii) Store food material c) Cotyledon (iii) Root d) Testa (iv) Absorb water needed for germination e) Micropyle (v) Protection of seed Radicle emerges out of the seed earlier than plumule. State one advantage served by this.