Cell physiology (chapter 1)

Question 1

Nernst equation

Answer 1

Gives electrochem equillibrium = 2.3 (RT/zF)C/C= 60 mV C/C.

z stands for the charge of the ion

Question 2

Myasthenia gravis

Answer 2

Decrease in density of ach receptorat the muscle end plate

Question 3

What is the reflection coefficient of urea?

Answer 3

σ=0

Question 4

Flux is proportional to…

Answer 4

Conentration difference

J=-PA(Ca-Cb)

Question 5

Solutions with the same effective osmotic pressure are

Answer 5

Isotonic

Question 6

Inhibition of na k atpase leads to (Ca and glucose)

Answer 6

Increase in intracellular Ca(Na Ca exchange) and decrease in intracellular glucose

Question 7

What type.of transport takes place in the process of absorption of glucoze by intestinal epithelial cells?

Answer 7

Secondary active (contransport)

Question 8

Rigor and atp

Answer 8

Atp levels are depleted leading to permanent contraction

Question 9

The solution with the higher osmolarity (g*C) is…

Answer 9

Hyperosmotic

Question 10

Eleveted serum K…

Answer 10

Constantly depolarises membrane leading to closing of Na inactivation gates leading to preventing the occurance of action potentials.