Seed Dispersal
Trending Questions
Q.
How seeds are dispersed in Xanthium.
Q. Stae whether true or false.
Seed dispersal is the movement or transport of seeds away from the parent plant.
Seed dispersal is the movement or transport of seeds away from the parent plant.
- True
- False
Q. These fruits or seeds usually develop floating ability in the form of spongy or fibrous outer coat as in
- Xanthium
- Cocount
- Urena
- None of these
Q. Match the following components of Column 'A' with the components of Column 'B'.
| Column 'A' | Column 'B' |
| (1) Venus fly trap | (A) A trap which looks and smells like a flower to catch the insects |
| (2) Balsam | (B) Flower opens in the morning |
| (3) Drosera | (C) Fruit bursts open to |
| (4) Lotus | (D) Tentacles on leaves which can trap insects |
- (1)-(A), (2)-(C), (3)-(D), (4)-(B)
- (1)-(A), (2)-(C), (3)-(B), (4)-(D)
- (1)-(D), (2)-(C), (3)-(A), (4)-(B)
- (1)-(D), (2)-(B), (3)-(A), (4)-(C)
Q. Parachute mechanism of fruit and seed dispersal is common in compositae due to the structure called
- Bracts
- Thorns
- Corolla
- Pappus
Q. In which of following fruits, is the edible part known as aril?
- Pomegranate
- Orange
- Litchi
- Custard apple
Q. Secondary dormancy is due to the absence of
- Favourable conditions
- Hormones
- None of the above
- Suitable plant
Q. Winged fruit is
- Samara
- Siliqua
- Cypsela
- Regma
Q. In which one of the following genera does the dispersal of seeds occur due to the build up of turgor pressure inside the fruit?
- Momordica
- Calotropis
- Ecballium
- Salmalia
