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प्रश्न
What is the function of a flower?
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उत्तर
The function of a flower is to carry out sexual reproduction in plants through the formation of male and female gametes. Flowers ensure that the gametes fertilise to form seeds that further help in reproducing plants.
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संबंधित प्रश्न
(i) Name the part marked 'A' in the diagram.
(ii) How dose 'A' reachese part 'B'?
(iii) State the importance of the part 'C'.
(iv) What happens to the part marked 'D' after fertilisation is over?
What is the name of female organ of a flower (other than carpel)?
Fill in the following blank with suitable word :
The female organ of reproduction in the flower is the...........
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
How do the insects help in cross-pollination?
Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.
The part of a seed which grows and develops into root on germination is :
(a) cotyledon
(b) plumule
(c) follicle
(d) radicle
A student is asked to study the different parts of an embryo of pea seeds. Given below are the essential steps for the experiment :
(I) Soak the pea seeds in plain water and keep them overnight.
(II) Cut open the soaked seed and observe its different parts.
(III) Take some pea seeds in a petri dish.
(IV) Drain the excess water. Cover the seeds with a wet cotton cloth and leave them as it is for a day.
The correct sequence of these steps is
(A) III, I, IV, II
(B) III, IV, I, II
(C) III, I, II, IV
(D) III, II, I, IV
Draw a diagram of the longitudinal section of a flower and label the following parts.
Find the odd one out:
__________ is present in unisexual flower.
Find an odd one out.
Flowers showing ornithophily show few characteristic like ______.
In a flowering plant, archesporium gives rise to ______.
Give reason for the following:
Fertilization cannot take place in flowers if pollination does not occur.
What are the agents for pollination?
What is the function of calyx?
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.
