Plants are living thing that need air, water and food to survive.
One of the distinct feature of the plants is that they can make their own food.
They have a green pigment called chlorophyll which enable the plants to trap light energy from the sun to make food.
Although some plant do not appear as green but they still contain chlorophyll. It is found under the coloured substance of the plant.
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities
Plants have different shapes.
Dome-shape pine tree
Fan-shape palm tree
Umbrella-shaped rain tree
They live in different places.
They can be found on land (garden, forest and field) and water (pond, river and sea).
Rose, Frangipani and Bougainvillea are garden plants.
Rain tree is a forest plant.
Grass, Mimosa and Lalang are field plants.
Water plants can be found in the pond, river and sea. They can be completely submerged, partially submerged or float in water.
⇒ Hydrilla is a completely submerged plant.
⇒ Water lily is a partially submerged plant.
⇒ Water hyacinth float on water.
Plants like animals, they are living things.
They need air, food and water to stay alive.
They can grow.
Can move but in a fixed position.
Response to change around them.
They eventaully die.
Parts of a plant
The plant comprises of the following parts:
The leave help the plant to breathe and make food.
The different parts of a leaf are the stalk, blade, veins, apex and base.
Leave differ in their shapes, edges, veins and arrangement.
Different types of leaf shapes
There are different type of edges the leaf can have:
There are different type of veins the leaf can have:
There are different type of leaf arrangement:
A compound leaf is made of seperate leaflets attached by a petiole to the stem. E.g. Flame of the forest.
Simple leaf is made up of a single blade connected by a petiole to the stem. E.g. Rose
Different shapes of the flower:
Flowers can be brightly coloured or dull in colour
Brightly-coloured flowers can attract insect for pollination.
Flowers can have no smell, a pleasant smell or an unpresant smell.
The smell of the flower can attract insert or prevent other animal from drawing near to it.
E.g. Rose and chrysanthemum has a pleasant smell, Bougainvillea has no smell and Rafflesia has an unpleasant smell.
Different type of flower arragement:
Tulip grow singly
Hydrangea grow in clusters
There are many different types of fruits.
They vary in sizes, shapes, skin texture, colours and number of seeds.
Round - Watermelon
Long-shaped - Papaya
Star-shaped e.g. star fruit
Smooth skin e.g. Papaya
Rough skin e.g. Orange
Hairy skin e.g. Rambutan
Thorny skin e.g. Durain
Fruit also various in number of seeds. e.g. Banana has no seed, Mango has one seed, Apple has few seeds, Watermelon has multiple seeds.
Some fruit can be eaten (edible) e.g. Pear, lychee, mango and some cannot be eaten (Inedible) e.g. Angsana, shorea and balsam.
Stem is to support the branches and leaves of the plant. There are 2 main types of stem
Woody e.g. tree and shrubs
Non-woody stems e.g. Morning glory
The stem of the trees are called trunks and they are covered with bark.E.g. Pong pong tree.
The shrubs are short and bushy. E.g. Hibicus
Non-woody plants are green, fleshy and weak. Climbers are plants with weak non-woody stems that are unable to stand upright. They need
a support to climb. E.g. Morning glory. Creepers are plants that usually have weak steems and are unable to stand upright. They are found on the ground.
E.g. string bean and sweet potato.
To hold the plant firmly to the ground.
Absorb mineral salt and water.
Most of the roots are found under the ground. However, the roots of some plants are found above the ground.