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Question
Draw a neat and labelled diagram.
Double fertilization in angiosperms
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Solution
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A student identified the various parts of an embryo of a gram seed and listed them as given below :
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Give one example of a unisexual flower.
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The ovary of a flower becomes ....... after fertilisation.
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What is the number of chromosomes in the zygote?
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One of the following occurs in the reproductive system of flowering plants as well as that of humans. This is :
(a) vas deferens
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A carpel consists of ________ , ________ and ________.
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Fill in the blank by selecting suitable word:
Transfer of pollen grains from the anther to the stigma is known as______________.
Fill in the blanks and rewrite the completed statements:
Lymph flows in _______________ direction.
Draw a diagram of the longitudinal section of a flower and label the following parts.
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Find an odd one out.
Accessory whorls : Calyx and corolla : : essential whorls : ______________
Match the following
| 1. | Petal | Opuntia |
| 2. | Fern | Chrysanthemum |
| 3. | Phylloclade | Attracts insect |
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| 5. | Sucker | Bignonia |
In which of the following manner the arrangement of megaspores in a tetrad is observed in angiosperms?
Which of the following are the chemical components of the wall of pollen tube?
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Sperm and egg nuclei fuse due to ______.
Pineapple fruit develops from ______.
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
The seed that contains the future plant is called the ______
Which out of the following processes does not lead to the formation of clones.
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
