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Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
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Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
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What is made in anther of a flower?
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What is made in ovary of a flower?
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Explain the terms 'self pollination'
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Explain the terms 'cross-pollination'?
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How do the insects help in cross-pollination?
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How is the process of pollination different from fertilization?
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Explain the term 'fertilisation'.
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Give some examples of different modes of fertilisation in nature?
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What type of plants reproduce by sexual reproduction method?
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What is seed? What are the parts of a seed? Explain with the help of a labelled diagram.
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Name the part of a seed which contains stored food.
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Name the part of a seed which grows into root.
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Name the part of a seed which grows into shoot.
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In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
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In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the zygote?
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What is meant by 'unisexual flowers' and 'bisexual flowers'? Give two examples of each.
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What is pollination? How does pollination occur?
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Describe the process of fertilisation in a flower with the help of labelled diagrams.
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