PLANTS
When plants use energy from the sun to make food, they also
produce oxygen, which we and other animals use to breath.
Characteristics of plants:
Plants are living things, they are born, they reproduce and
they die.
·
Plants
can make their own food.
· Plants
live attached to the ground. (and cannot move from one place to another)
·
Most plants have roots, a stem and
leaves.
Classifying a plant by its stem
Woody plants Herbaceous
(trees and Shrubs) (thing and flexible stem)
Classifying a plant by its flowers
Flowering plants Non-flowering plants
(they have flowers, (Don’t have seeds like moss)
fruits and seeds)
Nutrition in plants
Plants make their own food using
water, minerals, air and sunlight.
1. Roots absorb water and minerals from
the ground.
2. Raw sap (mixture of water and
minerals) travels to the leaves through vessels (ducts).
3. Photosynthesis is the process by
which plants create their own food. Taking carbon dioxide that mix with raw sap
and with the help of sunlight transform into elaborated sap. They release
oxygen.
Reproduction in plants
Plants reproduce through seeds. The flower is the
reproductive organ of most plants. The parts of the flower are: corolla, calyx,
stamens and pistil.
-Corolla: group of petals.
-Calyx: group of sepals.
Stamen: male reproductive organ of the flower. Two parts,
anther(contains the pollen) and filament (holds the anther).
Pistil: female organ where seeds are made and developed. It
has got several parts: stigma, style, ovary and ovule.
Plants reproduce through wind or by the action of bees, who
transport the pollen from one flower to another (pollination). When pollen
reaches the pistil, it goes down to the ovary producing in the ovule the
fertilisation. After this, the fruit begins to grow and when is ripe, it falls
to the ground and the seeds go into the soil allowing the birth of a new plant.
This final part is called germination.
