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Question
Fill in the following blank with suitable word :
The ovule becomes a .......... after fertilisation.
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Solution
The ovule becomes a seed after fertilisation.
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RELATED QUESTIONS
A student while observing an embryo of a pea seed in the laboratory listed various parts of the embryo as given below:
Testa, Tegmen, Radicle, Plumule, Micropyle, Cotyledon.
On examining the list the teacher remarked that only three parts are correct. Select three correct parts from the above list:
(a) Testa, Radicle, Cotyleddon
(b) Tegmen, Radicle, Micropyle
(c) Cotyledon, Plumule, Testa
(d) Radicle, Cotyledon, Plumule
Mention the changes a flower undergoes after fertilisation.
You are asked by your teacher to study the different parts of an embryo of a gram seed. Given below are the steps to be followed for the experiment:
I. Soak the gram seeds in plain water and keep them overnight.
II. Cut open a soaked seed and observe its different parts.
III. Take some dry gram seeds in a petri dish.
IV. Drain the excess water.
V. Cover the soaked seeds with a wet cotton cloth and leave them for a day.
The correct sequence of these steps is :
(A) III, I, V, IV, II
(B) III, I, II, IV, V
(C) III, IV, V, I, II
(D) III, I, IV, V, II
Explain what you understand by sexual reproduction.
Where is the male gamete formed in flowering plants?
Where is the female gamete formed in flowering plants?
What changes take place in the flower after fertilisation which lead to the formation of seeds and fruit?
In the figure given alongside, the parts marked A, B and C are sequentially :
(a) cotyledon, plumule and radicle
(b) plumule, radicle and cotyledon
(c) plumule, cotyledon and radicle
(d) radicle, cotyledon and plumule
What part is played by stamens and carpels in reproduction?
“Cell division is a type of reproduction in unicellular organism.” Justify.
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Draw a diagram of the longitudinal section of a flower and label the following parts.
Pollen grains are formed by _________ division in locules of anthers.
The anther wall consists of four wall layers where ______
Generally, in a pollen tube, which of the following moves to the tip of the tube?
Flowers showing ornithophily show few characteristic like ______.
In a flowering plant, archesporium gives rise to ______.
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
Complete the table
| Carly x | ______ | ______ |
| ______ | petal | attract insects |
| Androecium | ______ | Male reproductive part |
| ______ | ______ | Female reproductive part. |
Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?
| Flower X | Flower Y | Flower Z |
 |
 |
 |
