Advertisements
Advertisements
प्रश्न
Fill in the following blank with suitable word :
The ovule becomes a .......... after fertilisation.
Advertisements
उत्तर
The ovule becomes a seed after fertilisation.
APPEARS IN
संबंधित प्रश्न
What is pollination?
A student identified the various parts of an embryo of a gram seed and listed them as given below :
(I) Testa
(II) Plumule
(III) Radicle
(IV) Cotyledon
(V) Tegmen
Out of these the actual parts of the embryo are :
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) II, IV, V
"The chromosomal number of the sexually producing parents and their offspring is the same." Justify this statement.
Mention the changes a flower undergoes after fertilisation.
The anther contains ______.
Name the swollen lower part of the carpel.
Fill in the following blank with suitable word :
The ovary of a flower becomes ....... after fertilisation.
Fill in the following blank with suitable word :
The name of the structure in the flower in which the male gamete is formed is...........
Describe the process of fertilisation in a flower with the help of labelled diagrams.
Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.
Describe an activity to demonstrate phototropism.
Answer the following question.
List two agents of pollination?
What does germination mean?
Give scientific reason.
Fertilization in plants is called double fertilization.
In which of the following manner the arrangement of megaspores in a tetrad is observed in angiosperms?
Gloriosa superba exhibits ______.
The ovaries of different flowers may contain ______.
Give any two examples of agents of pollination.
In a plant flower the female whorl is ______.
