Means Of Transport
Chapter Name : Transport In Plants |
Sub Topic Code : 103_11_11_01_03 |
Topic Name : Means Of Transport |
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Sub Topic Name : Active Transport |
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Introduction
Active transport is the movement of molecules against the concentration gradient and hence, requires energy (ATP). The movement is from low to high concentration.
Pre-Requisites:
• Passive transport and facilitated diffusion. • Membrane proteins.
Activity:
Study about the different transport processes they can have.
Real Life Question:
Plants survive by various transport processes, so just imagine how complex will be transport processes in animals for survival.
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Active transport | Movement of molecules from low to high concentration against the concentration gradient with the help of membrane proteins. |
| Protein pumps | Membrane proteins that use energy to transport substances across cell membrane. |
| Energy requirement | ATP is required for transport. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Salt | Apply salt on any cut vegetable e.g. Grated bottle gourd and see how water starts coming out from the vegetable |
Real life uses :
Water moves from low to high concentration of salt (vegetable has lower concentration whereas the surrounding has higher salt concentration). Hence, water comes out
Places to visit :
Biology Laboratory, garden, etc
Practical examples around us
| Examples | Explainations |
|---|
What you learn in Theory:
The mechanism of active transport process in plants.
What you learn in Practice:
Plants use active transport for transporting substances such as minerals, sodium, potassium etc to different parts of the plants.