Getting to know plants

Topics Included
• Classification of plants
• Parts of plants and their functions
(i) Root System
(ii) Shoot System
(iii) Flowers
• Photosynthesis
• Transpiration

1. Getting to know plants Class 6

2. Plants grow all around us. There are about 2,50,000 types of plants.

3. Classification of plants Flowering Plants Plants Non-Flowering Plants

4. Classification of plants Flowering Plants are plants which bear flower s. Roses Sunflowers Tulips

5. Classification of plants Non-Flowering Plants are plants which do not bear flower s. Ferns Mosses Pines

6. Classification of plants Herbs Shrubs According to their size and nature of stem Trees Plants

7. Classification of plants Herbs: Grass Mint Wheat Size: Very small (less than 1m high) Nature of stem: Green & few branches

8. Classification of plants Shrubs: Pomegranate Lemon Size: Medium(usually 1 to 3 m high) Nature of stem: Hard & branches near the base Rose

9. Classification of plants Trees: Mango Banyan Size: Tall(generally more than 3 m high) Nature of stem: Hard, brown, thick & branches on the upper part Peepal

10. Plants different from Herbs , Shrubs and Trees Creepers Plants with weak stems that cannot stand upright and spread out on the ground Watermelon Strawberry

11. Plants different from Herbs , Shrubs and Trees Climbers Plants with weak stems that cannot stand and climb up with the help of support Grapevine Bitter gourd

12. PLANT SYSTEM Root System Underground part of the plant which includes main root and branched roots . Shoot System The part above the ground which includes stem , leaves , buds , flowers and fruits .

13. Root System The underground part of the plant. Functions: It absorbs water and minerals present in soil. It anchors the plant and provides physical support. It binds the soil particles together preventing soil erosion.

14. Types of Root System Lateral root

15. Roots are modified to store food Carrot Radish Turnip

16. Roots are modified to give extra support Prop Roots of Banyan Tree Prop Roots of Maize plant

17. Shoot System The part above the ground. It includes: Stem Leaf Fruit Flower Bud Node Internode

18. The Stem The main body or stalk of a plant that supports other parts. Functions: Keeps plant upright. Bears branches, leaves, flowers and fruits. Transports water, minerals and food to all other parts.

19. Types of leaf venation Parallel Venation in plants with fibrous root Reticulate Venation in plants with tap root

20. Stems are modified to store food Sugarcane Ginger Potatoes

21. Stems are modified to give support Stem Tendril

22. Stems are modified to make food

23. The Leaf The thin and green portion of plant. Functions: Prepares food for plant. Stomata in a leaf releases water from plant.

24. Stem Tendril Leaves are modified to give support

25. Leaves are modified into spines Spines

26. Flowers The most attractive part of the flowering plant. Male part: Stamen Female Part: Carpel Pedicel

27. Pedicel Pollination in Flowers

28. Thank You