Uptake And Transport Of Mineral Nutrients
Chapter Name : Transport In Plants |
Sub Topic Code : 103_11_11_05_02 |
Topic Name : Uptake And Transport Of Mineral Nutrients |
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Sub Topic Name : Translocation Of Mineral Ions |
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Introduction
Plants transport minerals from xylem to various parts of the plant through translocation.
Pre-Requisites:
• Mechanism for uptake of mineral ions from soil to xylem. • Structure of plants, active or passive uptake.
Real Life Question:
In humans, minerals are transported to various parts of the body through blood. But how does transport of minerals take place in plants?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Transpiration stream | Minerals after reaching xylem further transports from stem to all parts of the plant through the transpiration stream. |
| Chief sinks of minerals | Growing regions of plants such as apical and lateral meristems, young leaves, developing flowers, fruits, seeds and storage organs. |
| Remobilization of minerals | Older parts of the plants such as old leaves or other senescing parts export much of their mineral content to younger parts or leaves. |
| Organic and inorganic compounds | Some of nitrogen travels as inorganic compounds but most of it is carried as organic and related compounds. Similarly, phosphorus and sulphur are carried as organic compounds. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Encyclopedia and internet. | Try to find which minerals are important for plants and which minerals cause harm to the plants. |
Real life uses :
Plants require various minerals for their growth and survival.
Places to visit :
Biology Laboratory or Google
Practical examples around us
| Examples | Explainations |
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What you learn in Theory:
Minerals are absorbed by the xylem and then transported to various parts of the plant through translocation..
What you learn in Practice:
How plant transport nutrients from xylem to other parts of the plants.