Lesson 2.2 - The organs of plants

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

The organs of plants

Today's lesson 

1. HW Review

2. Roots

3. Root system

4. Stems

5. Leaves

6. Vascular system

Can you recall the Dutch names for these plant parts?

Roots

• What is a root?
• How is it an organ?

A root system

Root system

Function

1. Taking up water and minerals from the soil.

2. Keeping the plant in the ground.

3. Storing food reserves.

Fig 4. in book

Stems

Function of stems: 

- Support the flowers, leaves & fruit. 

- Keep the plant upright. 

- Store extra food. 

- Transport water, minerals & food through the plant. 

2 types of stems: 

- WOODY STEMS (trees & bushes) 

- HERBACEOUS STEMS (little herby plants)

Leaves

• Make food = photosynthesis
• Photosynthesis > in all green parts of a plant
• Photo = Light
• Synthesis = to make

Vascular system

All the vessels of a plant taken together

Function:  transport

1. water and minerals from the roots
   to other parts of the plant
2. glucose from the leaves
   to the other parts of the plant

TO DO

Read 2.2 

Do Qs 1, 2 and 3