Chapter-7. Getting to know plants Science class 6 in english Medium CBSE Notes

 CHAPTER-7. Getting to know plants

Parts of Plants: 

Flowers, Fruits, Leaves, stems and roots are the part of plants. 

Categories of Plants:

Most plants can be classified into three categories:

(I) Herbs, (II) Shrubs and (III) Trees.

(I) Herbs: Plants with green and tender stems.

(II) Shrubs: Some plants have the stem branching out near the base. The stem is hard but not very thick.

(III) Trees: Some plants are very tall and have hard and thick brown stems. The stems have branches in upper parts.

Edible parts of plants: The parts of plant which is eaten is called edible part.

Two examples of edible root:

(i) Turnip

(ii) Carrot

Two examples of edible stem:

(i) Potato

(ii) Onion

Role of of veins and midrib in a leaf:

Veins and midrib in a leaf transport food,water and minerals in leaf.

Give an Example of climber plant: 

- Money plant

Functions of roots in plants:

(i) It helps in the conduction of water and minerals from soil to stem b)it stores food
(ii) Fix the plant to the soil
(iii) Give support and prevent soil erosion

Differents between Herbs and Shrubs:

Venations: The design made by veins in a leaf is called the leaf venation.

Types of Vennation:

(a) Reticulate Venation: If this design is net-like on both sides of midrib, the venation is reticulate venation.

(b) Parallel Venation: In the leaves of grass you might have seen that the veins are parallel to one another. This is parallel venation

Transpiration: Water comes out of leaves in the form of vapour by a process called transpiration.

Role of transpiration in plants: Plants release a lot of water into the air through this process.