CELL PHYSIOLOGY/HOMEOSTASIS

Question 1

Why is cellular homeostasis important?

Answer 1

Regulation of:
1. pH
2. Oxygen concentration
3. Ion concentrations
4. Blood glucose concentrations
5. Transport of enzymes

Question 2

Importance of the membranes

Answer 2

• Serves as barrier
• Transport of molecules and ions
• Aids in homeostasis

Question 3

A process where a solute dissolves in a solvent to form a solution

Answer 3

Dissolution

Question 4

Process wherein particles are separated based on their physical and chemical properties through the use of membrane

Answer 4

Filtration

Question 5

Factors that influence solubility:

Answer 5

1. MW weight
2. Structure
3. Temperature of solvent
4. Lipid solubility
5. Charge

Question 6

TRUE or FALSE: In Diffusion, movement of particles are from a region of higher conc. –> lower conc.

Answer 6

TRUE

Question 7

TRUE or FALSE: Diffusion allow molecules and ions to distribute equally in a compartment.

Answer 7

TRUE

Question 8

Occurs in the presence of two regions with varying concentrations of particles or substances

Answer 8

Net Diffusion

Question 9

Movement of water from a region of lower conc. of solute to a higher conc. of solute

Answer 9

Osmosis

Question 10

The force of the water’s movement across the semipermeable membrane is dependent on the number of particles present on either sides of the membrane

Answer 10

Osmotic pressure