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प्रश्न
Name the part made up of the stigma, style and ovary.
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उत्तर
Pistil contains stigma, style and ovary.
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संबंधित प्रश्न
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
State significance of pollination.
Name the parts labelled as A, B, C and D in the diagram given below:
State the function of flowers in the flowering plants.
The anther contains ______.
The fusion of male and female gametes is termed as ______.
Where are the pollen grains produced?
Where is the male gamete formed in flowering plants?
Where is the female gamete formed in flowering plants?
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
How do the insects help in cross-pollination?
What is meant by 'unisexual flowers' and 'bisexual flowers'? Give two examples of each.
Describe the process of fertilisation in a flower with the help of labelled diagrams.
Fill in the blank by selecting suitable word:
A flower that bears both the male and the female parts is known as __________ flower.
What is a flower ? Draw a neat labelled diagram showing the L.S. of a typical flower.
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
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
A student is asked to study the different parts of an embryo of pea seeds. Given below are the essential steps for the experiment :
(I) Soak the pea seeds in plain water and keep them overnight.
(II) Cut open the soaked seed and observe its different parts.
(III) Take some pea seeds in a petri dish.
(IV) 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) III, I, IV, II
(B) III, IV, I, II
(C) III, I, II, IV
(D) III, II, I, IV
Write the names of male and female reproductive parts of a flower.
Explain sexual reproduction in plants.
Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.
Accessory whorls : Calyx and corolla : : essential whorls : ______________
Explain the sexual reproduction process in plants with a diagram.
The male reproductive part of a flower is ______.
Match the following
| 1. | Petal | Opuntia |
| 2. | Fern | Chrysanthemum |
| 3. | Phylloclade | Attracts insect |
| 4. | Hooks | Spore |
| 5. | Sucker | Bignonia |
Where does the endothecium layer of anther lobes is present?
Gloriosa superba exhibits ______.
Flowers showing ornithophily show few characteristic like ______.
Pineapple fruit develops from ______.
Pollen grains are produced by ______
Which out of the following processes does not lead to the formation of clones.
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
Triple fusion involves ______.
Type of sexual reproduction is ______.
Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?
| Flower X | Flower Y | Flower Z |
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