Plants and their parts

Part=Structure

Roots

Roots functions

1)They (hold) anchor the plant to the soil.

This is the anchor that keeps the ship in its place

2-They carry water andnutrients to all parts of the plants.

Nutrientssubstances that help living things

grow and stayhealthy .

3) Some plants store foodin them.

Example: carrots

Roots types

1) Taproot

Beet

Radish

Turnip

Carrot

Sweet potato

2)Fibrous root

Cactus

Wheat

Taproot 0r fibrous root?

So, now you can classify the plants according to their root types

Stem

Stem functions

1- It holds the plant up (supports the plant) and enables the leaves to reach sunlight.

2-It carries water, nutrients and food throughout the whole plant.

Water is carried in the stem through special openings called (vessels or tubes)

Stem types

1) Flexible green stem

It is found in small plants Example:Tulip Stem

2) Stiff woody stem(trunk)

It is found in larger plants and trees Example:Tree trunks

Leaves

Leaves have different sizes and shapes

Leaves functions

1)It is the major part in the plant where it makes its own food.

2)It contains chlorophyll (chloroplast) that: a)Gives the plant its green colour.

b)Helps the plant absorb sunlight.

Photosynthesis

Photo = light

People take in O2 and give out CO2

Plants use carbon dioxide to make their food

(photosynthesis) CO2+water+ sunlight food(sugar)+oxygen nutrient chlorophyll

Plant takes in:1- Water and nutrient from the soil.

2-Sunlight soaks the leaves which get energy from the sunlight and trap it in the chlorophyll(chloroplast).

3-Carbon dioxide enters small holes in the underside part of the leaves.

Plant gives off:

1- Oxygen which we use to breathe.

2-Sugar which is the plant food, which gives it the energy needed to grow.

2. Sunlight in

Oxygen out1. Carbon dioxide in

3. Water and nutrients in

Food out

Food=sugar(glucose)

Remember

A green plant breathes all the time, day and night.

A green plant photosynthesizes only in the presence of sunlight.

How plants are different?

• They have different shapes and sizes

How are plants alike?

• 1- Have the same parts

• 2-Make their own food

• 3-They all have green parts

• 4- Grow in the ground

• 5- Can’t move like the animals