Lesson 2 - 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

What are the membranes found in the body?

Answer 2

Capillary Membrane
Cell Membrane
Alveolar Membrane
Nuclear Membrane

Question 3

This membrane is found in blood vessels

Answer 3

Capillary Membrane

Question 4

This membrane encloses the cytoplasm

Answer 4

Cell membrane

Question 5

This membrane is found in the lungs

Answer 5

Alveolar membrane

Question 6

This membrane separates the nucleus from the cytoplasm

Answer 6

Nuclear membrane

Question 7

Enumerate the importance of the membranes

Answer 7

1. Serves as a barrier
2. Transport of molecules and ions
3. Aids in homeostasis

Question 8

It is a process where a solute dissolves in a solvent to form a solution

Answer 8

Dissolution

Question 9

It is a process wherein particles are separated based on their physical and chemical properties with the use of a membrane

Answer 9

Filtration

Question 10

What are the factors that influence solubility?

Answer 10

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

Question 11

This is the random movement of particles due to their kinetic energy

Answer 11

Diffusion

Question 12

It occurs in the presence of two regions with varying concentrations of particles. Movement of particles from a region of higher to lower concentration

Answer 12

Net Diffusion

Question 13

Factors that affect the rate of diffusion are grouped together to form _______

Answer 13

Frick’s Law of Diffusion

Question 14

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

Answer 14

Osmosis

Question 15

The force of water movement across the semipermeable membrane

Answer 15

Osmotic pressure

Question 16

Osmotic pressure is dependent on what?

Answer 16

The number of particles present on either sides of the membrane