Page 50 - Viva ICSE Science 5 : E-book

TIME TO REVISE

A. Fill in the blanks.
1. ____________ produce fruits and seeds.

2. ____________ is the innermost whorl of a fl ower.
3. Anther produces powder-like particles called ____________.
4. ____________ fl owers are also called incomplete fl owers.

B. Write one line about each.

1. Flower _________________________________________________________
2. Corolla _________________________________________________________
3. Ovary __________________________________________________________

4. Bisexual fl owers __________________________________________________

Pollination

For a fl ower to form fruits and seeds, pollination is very
essential. Pollination is the process of transfer of pollen

grains from the anther to the
Did You Know!
stigma of a fl ower. This transfer Honeybees do more
can take place with the help of pollination than any

A bee pollinating a fl ower wind, water or insects. These are other insect. Birds, e.g.,
hummingbird, also help
called the agents of pollination.
in pollination.
pollen grains
Types of pollination

anther
Pollination is of two types.
Self-pollination: In self-pollination, pollen grains
are transferred from anther to stigma of the same

fl ower or other fl owers on the same plant.

Self-pollination
stigma
pollen grains
Cross-pollination: When the pollen
anther
grains are transferred from anther

to stigma of a fl ower on another
plant of the same kind, it is called

cross-pollination.
Cross-pollination

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