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प्रश्न
Fill in the following blank with suitable word :
Pollen grains contain ............ gametes of a plant.
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उत्तर
Pollen grains contain male gametes of a plant.
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संबंधित प्रश्न
Give one example of a unisexual flower.
Where is the male gamete formed in flowering plants?
Fill in the following blank with suitable word :
The female organ of reproduction in the flower is the...........
What is made in ovary of a flower?
Explain the terms 'cross-pollination'?
What type of plants reproduce by sexual reproduction method?
What is pollination? How does pollination occur?
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
The part of a seed which grows and develops into root on germination is :
(a) cotyledon
(b) plumule
(c) follicle
(d) radicle
In what ways is fertilisation in a plant similar to fertilisation in a human?
Distinguish between unisexual and bisexual flowers giving one example of each. Draw a diagram showing process of germination of pollen grains on stigma and label the following parts:
(a) Female germ cell
(b) Male germ cell
(c) Ovary
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
The ovule of an angiosperm is technically equivalent to ______
Flowers showing ornithophily show few characteristic like ______.
Length of pollen tube depends on the distance between ______
Double fertilization is essential for formation of ______.
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
Explain the post fertilization changes that occur in the ovary of a flower.
Given below is a diagram of a germinating seed. Label the parts that:
- gives rise to future shoot.
- gives rise to future root system.
- stores food.
