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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
How does fertilisation occur in flowers? Name the parts of the flower that develop into (i) seed, and (ii) fruit after fertilisation.
Give one example of a unisexual flower.
How is the process of pollination different from fertilization?
A flower may have either male or female reproductive parts. Such a flower is called ______.
Mature ovary forms the ______.
Explain the terms 'cross-pollination'?
What is meant by 'unisexual flowers' and 'bisexual flowers'? Give two examples of each.
Which among the following statements are true for unisexual flowers?
(i) They possess both stamen and pistil
(ii) They possess either stamen or pistil
(iii) They exhibit cross pollination
(iv) Unisexual flower possessing only stamens cannot produce fruits
(a) (i) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (i), (iii) and (iv)
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
Fill in the blank:
Seeds are formed from________.
Identify A, B, C and D in the given diagram and write their names.
Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.
Calyx : Sepals : : Corolla : ________________
Where does the endothecium layer of anther lobes is present?
The seed that contains the future plant is called the ______
Where is the zygote located in the flower after fertilization?
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
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.
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
