FOR CLASS X BIOLOGY

1. SEXUAL REPRODUCTION
IN PLANTS
Deposited byAbhishek Kumar
Kishan Singh

2. PARTS OF FLOWER

3. CARPEL AND ITS PARTS

4. STAMEN AND ITS
PARTS

5. SELF POLLINATION
Self-pollination is a form
of pollination that can occur when
a flower has both stamen and
a carpel (pistil) in which
the cultivar or species itself fertile and
the stamens and the sticky stigma of
the carpel contact each other in order
to accomplish pollination. The term is
inaccurately used in many cases where
an outside pollinator is actually
required; such plants are merely self
fertile, or self pollen zing.

6. CROSS POLLINATION
The transfer of pollen from the male
reproductive organ (an anther or a
male cone) of one plant to the female
reproductive organ of another plant.
Insects and wind are the main agents
of cross-pollination. Most plants
reproduce by cross-pollination, which
increases the genetic diversity of a
population. Mechanisms that promote
cross-pollination include having male
flowers on one plant and female
flowers on another, having pollen
mature before the stigmas on the
same plant are chemically receptive to
being pollinated, and having
anatomical arrangements that make
self-pollination less likely.

7. AGENTS RESPONSIBLE FOR
POLLINATION
AIR
WATER

8. GERMINATION
Germination is the process in which
a plant or fungus emerges from a
seed or spore, respectively, and
begins growth. The most common
example of germination is
the sprouting of a seedling from
a seed of an angiosperm or
gymnosperm. However the
growth of a spore ling from
a spore, for example the growth
of hyphae from fungal spores, is
also germination. In a more
general sense, germination can
imply anything expanding into
greater being from a small
existence or germ.

9. After the processes of sexual fertilization in plants, the zygote
divides several times to form an embryo within the ovule. The
ovule develops a tough coat and is gradually converted into the
seed. The ovary grows rapidly and ripens to form a fruit.

10. MR. M.R Gujjar