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प्रश्न
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
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उत्तर
(c) plumule, cotyledon and radicle
A represents the plumule which forms the shoot. B represents the cotyledon and C represents the radicle which forms the roots.
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संबंधित प्रश्न
State the function of flowers in the flowering plants.
Name the swollen lower part of the carpel.
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
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...........
Explain the terms 'cross-pollination'?
Explain the term 'fertilisation'.
The correct sequence of reproductive stages occurring in flowering plants is ______
Fill in the blank by selecting suitable word:
A flower that bears both the male and the female parts is known as __________ flower.
Fill in the blank:
Seeds are formed from________.
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
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
Write the names of male and female reproductive parts of a flower.
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
What does germination mean?
Give scientific reason.
Fertilization in plants is called double fertilization.
Match the following
| 1. | Petal | Opuntia |
| 2. | Fern | Chrysanthemum |
| 3. | Phylloclade | Attracts insect |
| 4. | Hooks | Spore |
| 5. | Sucker | Bignonia |
The anther wall consists of four wall layers where ______
Complete the table
| Carly x | ______ | ______ |
| ______ | petal | attract insects |
| Androecium | ______ | Male reproductive part |
| ______ | ______ | Female reproductive part. |
Explain the post fertilization changes that occur in the ovary of a flower.
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
