Page 238 - Primary Six Notes

Uses of flowers to plants

Flowers produce fruits and seeds.

Seeds

A seed is a fertilized ovule of a flower.

There are two types of seeds;

1. Monocotyledonous seeds

2. Dicotyledonous seeds

Monocotyledonous seeds

These are seeds with only one cotyledon e.g. maize grain, rice,

millet etc. These seeds are also called grains or cereals

Dicotyledonous seeds

These are seeds with two cotyledons. E.g. beans, peas, ground-

nuts, Soya beans, mango etc.

Diagram and functions of a Monocotyledonous seed

endosperm
endosperm i',

embryo i i L ■ cotyledon
f) coleoptile
| M
\ -epicotyl

\ '
\

\ \ (H i . hypocotyl

V radicle D

coleorhiza
\

Front view Longitudinal section