1. Nutrient uptake and Transport
Sem - 2

2. Sodium – Potasium Pump
The sodium-potassium pump maintains the electrochemical gradient of living cells by moving sodium in and potassium out of the cell. The primary active transport that functions with the active transport of sodium and potassium allows secondary active transport to occur.

3. Passive and Facilitated diffusion
Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.

4. In facilitated diffusion, molecules only move with the aid of a protein in the membrane. ... Simple diffusion is passive but facilitated diffusion is an active process that uses energy. Simple diffusion requires molecules to move through special doorways in the cell membrane.

5. Example of Facilitated diffusion
In the cell, examples of molecules that must use facilitated diffusion to move in and out of the cell membrane are glucose, sodium ions, and potassium ions. They pass using carrier proteins through the cell membrane without energy along the concentration gradient.

6. Is facilitated Diffusion Passive or Active ?
Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific trans membrane integral proteins.

7. What is Passive Transport and Example?
An example of passive transport is diffusion, the movement of molecules from an area of high concentration to an area of low concentration. Carrier proteins and channel proteins are involved in facilitated diffusion.

8. Passive Transport and Facilitated Diffusion

9. Passive Transport and Facilitated Diffusion

10. Faciliated Diffusion

11. Primary and Secondary Active Transport
Primary and Secondary Active Transport. ... In primary active transport, the energy is derived directly from the breakdown of ATP. In the secondary active transport, the energy is derived secondarily from energy that has been stored in the form of ionic concentration differences between the two sides of a membrane.

12. What are the two main types of active transport?
Active Transport. Active Transport is the term used to describe the processes of moving materials through the cell membrane that requires the use of energy. There are three main types of Active Transport: The Sodium-Potassium pump, Exocytosis, and Endocytosis.

13. Is the Sodium Potassium Pump primary or active transport?
Secondary active transport
As an example, let's suppose we have a high concentration of sodium ions in the extracellular space (thanks to the hard work of the sodium-potassium pump). ... The carrier protein uses the energy of the sodium gradient to drive the transport of glucose molecules.

14. Difference between Primary and Secondary transport

15. Image of Primary and Secondary Active Transport

16. Primary active transport

17. Uniport, Symport and Antiport
Uniporters are involved in facilitated diffusion and work by binding to one molecule of substrate at a time to move it along its concentration gradient. ... Antiporters transport molecules in opposite directions, while symporters transport molecules in the same direction.

18. What is the difference between uniport,symport and antiport?
Distinguish between uniport, symport and antiport as different methods of active transport. Symport- Integral protein which moves two or more molecule types across the membrane in the same direction. Antiport- Integral protein which moves two or more molecule types across the membrane in the opposite direction.

19. What is Uniport in Biology?
Uniport. From Biology-Online Dictionary | Biology-Online Dictionary. Definition. The transport of molecule or ion across a membrane through facilitated diffusion without coupling to the transport of another molecule or ion (as opposed to symport and antiport) Supplement

20. What is an example of symport?
Symport. ... When the transported molecule and the co-transported ion move in the same direction, the process is known as symport. Step 1 Step 2 Step 3 Put It All Together Reset. An example of a symport process is the transport of amino acids across the intestinal lining in the human gut.

21. Is the Na – K pump an antiport?
Na+/K+ ATPase pump
The Na+/K+ ATPase pump is a pump found in the membrane of animal cell which uses the hydrolysis of ATP to pump 3Na+ out of the cell and 2K+ into the cell. ... The sodium-potassium pump is an antiporter transport protein.

22. Images of Uniport, Symport and Antiport.

25. Carrier Types