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प्रश्न
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
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उत्तर
The four whorls of a flower are
- Calyx consist of of sepals
- Corolla consist of petals
- Androecium is the male reproductive part, stamens which consist of anther and filament.
- Gynoecium is the female reproductive part, pistil which consist of stigma, style, ovary.
In flowers, gametes producing organs are:
- Anther (Part of androecium) - pollen grains contain male gametes.
- Ovary (Part of gynoecium) - ovule contain egg (female gamete).
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संबंधित प्रश्न
A student was asked to observe and identify the various parts of an embryo of a red kidney bean seed. He identified the parts and listed them as under:
I. Tegmen
II. Testa
III. Cotyledon
IV. Radicle
V. Plumule
The correctly identified parts among these are
(A) I, II and III
(B) II, III and IV
(C) III, IV and V
(D) I, III, IV and V
Name the parts A, B and C shown in the diagram and write their functions.
A student identified the various parts of an embryo of a gram seed and listed them as given below :
(I) Testa
(II) Plumule
(III) Radicle
(IV) Cotyledon
(V) Tegmen
Out of these the actual parts of the embryo are :
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) II, IV, V
Name the parts labelled as A, B, C and D in the diagram given below:
Explain the terms 'cross-pollination'?
Name the part of a seed which contains stored food.
What is pollination? How does pollination occur?
Multiple choice question. Tick (✓) the correct choice:
The male gamete is present inside the which germinates.
- the style
- the stigma
- the anther
- the ovary
What are the male and female gametes in a flowering plant?
Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize
Fill in the blanks and rewrite the completed statements:
Lymph flows in _______________ direction.
Distinguish between self-pollination and cross-pollination.
Explain the sexual reproduction process in plants with a diagram.
Where does the endothecium layer of anther lobes is present?
Gloriosa superba exhibits ______.
The flower of the Hibiscus plant is ______
The ovaries of different flowers may contain ______.
What is puberty?
Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?
| Flower X | Flower Y | Flower Z |
 |
 |
 |
Explain the post fertilization changes that occur in the ovary of a flower.
