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प्रश्न
Name the parts labelled as A, B, C and D in the diagram given below:
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उत्तर
In the given figure,
A represents the pollen grain
B represents the pollen tube
C represents the ovary
D represents the female germ cell
संबंधित प्रश्न
Fill in the following blank with suitable word :
The term used to refer to the transfer of pollen from the stamen of one flower to the carpel of another flower of the same species is...........
(a) Draw a neat diagram of a flower showing its various parts. In this diagram mark stem, receptacle, sepals, petals, stamen and carpel.
(b) What name is given to (i) all the petals of a flower, and (ii) all the sepals of a flower?
(c) What are (i) stamen, and (ii) carpel, in a flower?
(d) What is the other name of carpel of a flower?
(e) What is the name of yellow powdery substance present in the anther of a flower?
Multiple choice question. Tick (✓) the correct choice:
Unisexual flowers are found in
- mulberry
- mustard
- pea
- sunflower
State whether the following statement is true (T) or false (F):
Flowers which possess stamens and carpel are called unisexual.
Explain sexual reproduction in plants.
Generally, in a pollen tube, which of the following moves to the tip of the tube?
Which among the following statements are true for unisexual flowers?
- They possess both stamen and pistil
- They possess either stamen or pistil
- They exhibit cross pollination
- Unisexual flowers possessing only stamens cannot produce fruits
Where is the zygote located in the flower after fertilization?
Give any two examples of agents of pollination.
Triple fusion involves ______.
