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प्रश्न
Name the part of a seed which grows into root.
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उत्तर
The part of the seed which grows into roots is called radicle.
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संबंधित प्रश्न
How does fertilisation occur in flowers? Name the parts of the flower that develop into (i) seed, and (ii) fruit after fertilisation.
(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?
State significance of pollination.
Where is the female gamete formed in flowering plants?
Fill in the following blank with suitable word :
The ovule becomes a .......... after fertilisation.
Fill in the following blank with suitable word :
Flowering plants reproduce by ...........method of reproduction.
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
Fill in the blank by selecting suitable word:
A flower that bears both the male and the female parts is known as __________ flower.
The students of a class were asked by the teacher to study the different parts of an embryo of an angiosperm. Given below are the essential steps for the experiment :
A. Soak the seeds in plain water and keep them overnight.
B. Cut open the soaked seed and observe its different parts.
C. Take some healthy seeds in a petri-dish.
D. 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) C, A, D, B
(b) C, D, A, B
(c) A, C, D, B
(d) A, C, B, D
Prepare a slogan for campaign against female foeticide.
Bisexual : Hibiscus : : Unisexual : ___________
Write the events involved in the sexual reproduction of a flowering plant.
a. Discuss the first event and write the types.
b. Mention the advantages and the disadvantages of that event.
In human beings, fertilization occurs in the ______
Which among the following statements are true for sexual reproduction in flowering plants?
- It requires two types of gametes
- Fertilisation is a compulsory event
- It always results in formation of zygote
- Offspring formed are clones
Sketch and label the essential and accessory whorls of flower.
What is the structural unit of sexual reproduction in plant?
What is the function of calyx?
What is puberty?
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
