Science ยท Chapter 1 ยท ICSE Class 5

Parts of a Plant

Every plant is made of parts that each do a special job. Tap a part below to explore what it does.

The Plant Explorer

Tap a part to begin

Choose Root, Stem, Leaf, Flower, or Fruit above.

Try it: tap "Root" first, then "Leaf" to compare their jobs.

1.1

The main parts of a plant

Most flowering plants are made of six main parts, each with its own job: the root, stem, leaf, flower, fruit, and seed. Together, these parts help the plant grow, make food, and produce new plants.

Why it matters โ€” Just like your body has different organs for different jobs (like your stomach for digesting food and your lungs for breathing), a plant's parts each specialise in one task that keeps the whole plant alive.
1.2

The root system

Roots usually grow underground and anchor the plant firmly in the soil. They also absorb water and minerals from the soil and carry them up to the rest of the plant. Some roots, like carrots, also store food.

Tap root
Mango, Carrot

One thick main root grows straight down, with thinner roots branching off it.

Fibrous root
Wheat, Grass

Many thin roots of similar size spread out like a web just below the surface.

1.3

The stem

1What the stem does

The stem supports the plant and holds the leaves, flowers, and fruit up towards sunlight. It also acts like a pipeline, carrying water and minerals from the roots to the leaves, and carrying food made by the leaves to the rest of the plant.

2Some stems store food too

A potato is actually a swollen underground stem that stores food for the plant โ€” not a root!

1.4

The leaf

Leaves are the plant's food factories. Using sunlight, water, and carbon dioxide from the air, leaves make food for the plant through a process called photosynthesis. Leaves also release oxygen into the air, which we breathe.

Watch out โ€” Don't confuse a leaf making food with a root absorbing water โ€” they work together but do different jobs. The leaf makes the food; the root supplies the water needed to make it.
1.5

Flower, fruit, and seed

1The flower's job

The flower is the plant's reproductive part. It contains the parts needed to make seeds, and its bright colours and scent attract insects like bees that help with pollination.

2From flower to fruit and seed

After pollination, the flower slowly changes into a fruit, and inside the fruit, seeds develop. Each seed can grow into a brand new plant.

Practice

Exercises

Tap a question to reveal its answer once you've tried it yourself.

Assess

Sample tests

Two 20-mark, 30-minute tests. Reveal answers question by question.