The Leaf
Chapter Name : Morphology Of Flowering Plants |
Sub Topic Code : 103_11_05_03_01 |
Topic Name : The Leaf |
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Sub Topic Name : Venation |
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Introduction
Venation - Arrangement of veins and vein lets in the lamina of the leaf
Pre-Requisites:
What is venation? Is there more than one type of venation?
Activity:
Any leaf of a plant.
Real Life Question:
Which is the most common type of venation among the leaves?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Reticulate venation | When vein lets form a network. Eg - leaves of dicotyledonous plants |
| Parallel venation | When veins run parallel to each other. Eg - leaves of monocotyledonous plants |
| Lamina | Also called as leaf blade. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Microscope | When leaves are observed under a microscope the arrangement of veins and vein lets can be seen clearly |
Real life uses :
Veins in leaves help in transport of water and minerals.
Practical examples around us
| Examples | Explainations |
|---|---|
| Leaves | the venation in any leaf can be observed without a microscope as it is quite clearly seen with the naked eye too. |
What you learn in Theory:
What is venation and different types of it.
What you learn in Practice:
How veins in the leaf help in survival of the leaves.