Advertisements
Advertisements
Question
Why fertilization process in angiosperms is called as double fertilization?
Solution
In fertilization process of angiosperms, both the male gametes participate, due to which fertilization occurs twice in the same embryo sac, hence it is described as double fertilization.
RELATED QUESTIONS
Explain the events up to double fertilisation after the pollen tube enters one of the synergids in an ovule of an angiosperm.
Match the items in Column A with those in Column B.
|
Column A |
Column B |
|
(a) Generative nucleus |
(i) Pollen tube |
|
(b) Germ pore |
(ii) Endosperm nucleus |
|
(c) Exine |
(iii) Testa |
|
(d) Secondary nucleus |
(iv) Fertilization |
|
(e) Integument |
(v) Male nuclei |
|
(f) Egg nucleus |
(vi) Rough |
What are the advantages of the following in the flower to the plant concerned?
Smooth and light pollen
What are the advantages of the following in the flower to the plant concerned?
Protruding and easily movable anthers
What is the function of the pollen tube? Explain it with the help of a diagram.
Given ahead is a diagrammatic representation of the process of fertilization. Study the same and then answer the question that follows:
Name the parts labelled 1, 2, 3, 4, 5 and 6.
Which of the following happens during triple fusion?
The success of seed plants on land is mainly due to ______.
Which are the three cells found in a pollen grain when it is shed at the three celled stage?
Name the nuclei involved in triple fusion.
