The Root
Chapter Name : Morphology Of Flowering Plants |
Sub Topic Code : 103_11_05_01_01 |
Topic Name : The Root |
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Sub Topic Name : Regions Of The Root |
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Introduction
Roots - grow inside the soil and are responsible for the conduction of watr and minerals from the soil and send it to different parts of the plant.
Pre-Requisites:
What are the different regions of the root and their functions
Activity:
Videos which show how roots are formed and their functions.
Real Life Question:
Do different plants have different kinds of roots?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Monocotyledonous plant | Roots originate from base of stem. Primary root is short lived replaced by large number of roots. These plants have fibrous root system. Eg -Wheat |
| Dicotyledonous plant | Primary roots branch out to form secondary and tertiary roots. This is called tap root system. Eg - Mustard. |
| Root cap | Present at the apex of the root. |
| meristamatic region | Cells in this region are small, thin walled and filled with dense protoplasm |
| Region of elongation | Cells here under go rapid elongation and enlargement. |
| Region of maturation | Cells in this region differentiate and mature. |
| Root hairs | From region of elongation epidermal cells form thin delicate thread like structures called as root hairs. |
Learning aids / Gadgets
| Gadgets | How it can be used |
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Real life uses :
Roots are important part of a plant, without roots the plant cant exist.
Places to visit :
You can observe roots of plants in your garden, when you pluck out the plant you can see their roots.
Practical examples around us
| Examples | Explainations |
|---|---|
| Banyan trees | These trees live for a long period and their roots are clearly visible as some grow above the soil and some hang down from the tree branch. |
What you learn in Theory:
The different regions of roots
What you learn in Practice:
How roots are important for a plant