Transpiration
Chapter Name : Transport In Plants |
Sub Topic Code : 103_11_11_04_02 |
Topic Name : Transpiration |
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Sub Topic Name : Transpiration And Photosynthesis |
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Introduction
Transpiration leads to loss of water by plants. But photosynthesis requires large amount of water so some plants have strategies to minimize water loss.
Pre-Requisites:
Transpiration and photosynthesis process.
Activity:
Study about the photosynthetic pathways of these plants. Try to relate how they avoid water loss and how are they different from normal plants.
Real Life Question:
Transpiration leads to loss of water in plants, so how do plants in desert regions where there is scarcity of water survive?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Transpiration | Loss of water from the plants. Helps in supplying water for photosynthesis and helps in mineral transport to the plants. |
| Photosynthesis | Requires large amount of water but this water is depleted due to transpiration. |
| C4 plants | Their evolved photosynthetic system helps in minimizing loss of water and increasing carbon dioxide availability. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Encyclopedia or internet | Make a list of all the C4 and C3 plants. |
Real life uses :
Plants have evolved photosynthetic mechanisms for evading water loss.
Places to visit :
Biology Laboratory.
Practical examples around us
| Examples | Explainations |
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What you learn in Theory:
How transpiration and photosynthesis are related.
What you learn in Practice:
The various purposes of transpiration and how different plants survive the excess loss of water.