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3. Reproduction in Plants eLearn.Punjab

Extend Your Thinking

The papaya plant has male and female parts on separate plants. Why is a lonely papaya tree
hard to see with fruit?

Activity 3.2 Identifying the Parts of a Flower

Pluck a flower from a garden. Take a pair of forceps and carefully separate the parts of the
flower under the supervision of your science teacher. Identify the sepals, petals, stamens
and the carpels. Also identify the filament and anther of a stamen, stigma, style and ovary of
the carpel. Draw the diagrams of stamen and carpel.

Activity 3.3 Observing the Formation of Fruit

Under the supervision of your science teacher, visit an orchard of some fruit producing plants
near your school. Observe the flowers developing into fruit. Which part of the flowers are
developing into fruit?

3.6: Formation of Seeds and Fruits

Many plants grow and bear fruit to protect their seeds. A seed protects the embryo inside it. In
addition, shapes of seeds and fruits help in their dispersal.

Seeds

After fertilization an ovule becomes a seed. The embryo and its store of food are covered by a
tough seed coat.
The most important part of a seed is its embryo. Embryo grows into a new plant. The embryo
consists of the following parts (Fig.3.9).

Radicle

This part of the embryo develops into the first root of the new plant.

Plumule

This part of the embryo develops into the first shoot (stem) of the new plant.

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