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TERMS TO KNOW
1. Calyx: The outermost whorl of a fl ower which is made up of sepals
2. Sepals: Small, green, leaf-like structures that form calyx
3. Corolla: The whorl which is next to calyx and is made up of petals
4. Petals: Brightly coloured and scented structures that form corolla
5. Androecium: The male reproductive part of a fl ower
6. Gynoecium: The female reproductive part of a fl ower
7. Pollination: The transfer of pollen grains from the anther to the stigma of a fl ower
QUICK LOOK
1. Flowers produce fruits and seeds.
2. There are four parts of a fl ower—calyx, corolla, androecium and gynoecium.
3. Calyx is the outermost whorl of a fl ower. It is made up of sepals.
4. Corolla is the most prominent whorl of a fl ower and is made up of petals.
5. Androecium is the male reproductive part of a fl ower.
6. Gynoecium is the female reproductive part of a fl ower.
7. Fruit is formed from the ovary and seeds from the ovules of a fl ower.
8. Bisexual fl owers, also known as complete fl owers, have both androecium and gynoecium.
9. Unisexual fl owers, also known as incomplete fl owers, may have either androecium or
gynoecium.
10. Pollination is the transfer of pollen grains from the anther to the stigma of a fl ower.
EXERCISES
A. Fill in the blanks.
1. Flowers produce ____________ and ____________.
2. All sepals together are called ____________.
3. ____________ contains the male reproductive cells.
4. Papaya, cucumber and pumpkin have _________ fl owers.
5. Pollination is the process of transfer of pollen grains from the __________ to
the ____________ of a fl ower.
6. ____________ forms fruit and ____________ forms seeds.
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