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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...........
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उत्तर
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 pollination.
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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.
You are asked by your teacher to study the different parts of an embryo of a gram seed. Given below are the steps to be followed for the experiment:
I. Soak the gram seeds in plain water and keep them overnight.
II. Cut open a soaked seed and observe its different parts.
III. Take some dry gram seeds in a petri dish.
IV. Drain the excess water.
V. Cover the soaked seeds with a wet cotton cloth and leave them for a day.
The correct sequence of these steps is :
(A) III, I, V, IV, II
(B) III, I, II, IV, V
(C) III, IV, V, I, II
(D) III, I, IV, V, II
Mature ovary forms the ______.
Mention the function of Flower.
Draw a labelled diagram of a bisexual flower.
Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.
(a) Identify A, B and C in the given diagram and write their functions.
(b) Mention the role of gamete and zygote in sexually reproducing organisms.
Identify the odd. Stigma, Style, Pollen, Ovary.
A student is observing the temporary mount of a leaf peel under a microscope. Draw a labelled diagram of the structure of stomata as seen under the microscope
Differentiate between self-pollination and cross-pollination.
Answer the following question.
List two agents of pollination?
Bisexual : Hibiscus : : Unisexual : ___________
Define.
Inflorescence
What does germination mean?
In which part of the flower germination of pollen grains takes place?
In a plant flower the female whorl is ______.
What are the agents for pollination?
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
State the post-fertilisation changes that lead to fruit formation in plants.
