Foundation Physio

Carrier mediated transport occurs in all except:

• Facilitated Diffusion

• Primary Active Transport

• Secondary Active Transport

• Osmosis

Normal Osmolarity of Plasma is

• 265 mosm/L

• 300 mosm/L

• 375 mosm/L

• 450 mosm/L

Osmotic pressure depends upon the _______ of molecules.

• Number

• Size

• Charge

• Ionic Potential

Plasmolysis occurs if the cell is immersed in:

• Isotonic Solution

• Hypertonic Solution

• Hypotonic Solution

• Plasma

______ are opened or closed by hormones, second messengers or neurotransmitters.

• Ion channels

• Ligand gated channels

• Voltage gated channels

• Leak channels

Which of the following is the characteristic feature of Facilitated Diffusion?

• It is an active process

• Requires energy

• The rate of diffusion is limited because of saturation

• Carrier molecule is not required

A membrane carrier is said to be symport if it:

• Transport only one type of substance

• Links the transfer of one substance to transfer of another

• Does not use energy

• Exchanges one substance with the other

One of the notable examples of secondary active transport in the body is:

• Exchange of gases in the lungs

• Transport of glucose into the cells

• Na+ - K+ pump

• Transport of amino acids along with Na+ in the kidney

Clathrin is required for:

• Phagocytosis

• Exocytosis

• Receptor mediated Endocytosis

• Transcytosis

Exocytosis:

• Is a process by which bacteria is engulfed by the cells

• Adds to the total amount of membrane surrounding the cell

• Does not require energy

• Is independent of Ca++