Types of leaf

1. The leaf
(Structure &
Function of
plants)

2. CONTENTS
01
Introduction
of leaf
02
Function of
Leaf
03
Modification
of Leaf

3. 01
Introduction of leaf
• Structure
• Type

4. LEAF-Structure
• Leaf are Green Coloured thin, Broad and Flat part
of plants.
• It grows at a node.
• Leaf Blade: They are typical leaf expended flat
part. It is aslo known as Lamina.
• The leaf is attached to the stem by short
structure called petiole.
• It continues through the lamina as a mid-rib .
• And branches out into a fine network called the
Vain.

5. TYPES
SIMPLE COMPUND
PINNATLY PALMATLY

6. TYPES (vains)
Reticulate
Parallel

7. 02
Function
of Leaf

8. LEAF - its Function.
• It prepares food using Carbon dioxide, water & Chlorophyll in the presence
of sunlight. This process is called Photosynthesis.

9. LEAF - its Function.
• The surface of the leaves have tiny pores called Stomata. These helps in the
Exchange of gases during Respiration.

10. 03
Modification
of Leaf

11. Modification of Leaf
The leaves which perform sone special functions,
in addition to their usual function of
manufacturing of food are called modified leaves,
These modification of leaves are as follows:

12. Leaf Spine.
• They act as defence organs for protection
against grazing animals.
• Plants like cactus, the leaves gets modified
into hard and pointed structure, called
spines.
• And reduces the loss of water during excessive
hot climates.

13. Leaf Pitcher.
• This process provides the plants with nutrients
that the plants would not obtain otherwise.
• Plants like Pitcher plants & the sun dew,
possess highl modified leaves that traps, &
digests, insects.
• Such plants are called insectivorous Plants .

14. Leaf Tendril.
• They help the plant to climb.
• In some plants, the leaves gets modified into
structure which aqre highly coiled.
• Example Pea, gloriosa etc.

15. Leaf modifird as a reproductive organ.
• In some Plants ,
eg. Bryophyllum,
leaves have buds
that can produce
new plants

16. THANKYOU