Reproduction in plants class 7 | worksheet

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Reproduction in plants class 7 | worksheet 

Reproduction in plants class 7. Download Reproduction in plants class 7 worksheet pdf based on the latest CBSE syllabus including MCQ questions, define, questions on cross pollination, long questions type, and more.

Points to remeber

´╗┐Most plants have roots, stems and leaves. These are called the vegetative parts of a plant. After a certain period of growth, most plants bear flowers.

There are several ways by which plants produce their offspring. These are categorized into two types: (i) asexual, and (ii) sexual reproduction. In asexual reproduction, plants can give rise to new plants without seeds, whereas in sexual reproduction, new plants are obtained from seeds..

In asexual reproduction, new plants are obtained without production of seeds.

Flowers which contain either only pistil or only stamens are called unisexual flowers. Flowers which contain both stamens and pistil are called bisexual flowers. Corn, papaya and cucumber produce unisexual flowers, whereas mustard, rose and petunia have bisexual flowers.

Vegetative propagation

It is a type of asexual reproduction in which new plants are produced from roots, stems, leaves and buds. Since reproduction is through the vegetative parts of the plant, it is known as vegetative propagation.

The small bulb-like projection coming out from the yeast cell is called a bud. The bud gradually grows and gets detached from the parent cell and forms a new yeast cell.

Insects visit flowers and carry away pollen on their bodies. Some of the pollen lands on the stigma of a flower of the same kind. The transfer of pollen from the anther to the stigma of a flower is called pollination. If the pollen lands on the stigma of the same flower or another flower of the same plant, it is called self-pollination. When the pollen of a flower lands on the stigma of a flower of a different plant of the same kind, it is called cross-pollination.

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