Cellular Physiology Practice Questions

Question 1

Reducing equivalents produced in glycolysis are transported from cytosol to mitochondria by ?

Accepted Answer

Malate-aspartate shuttle

Answer

Carnitine

Answer

Creatine

Answer

Glutamate shuttle

Question 2

Which one of the following conditions is caused by mutations in the gene that encodes the sodium-potassium-2-chloride cotransporter (NKCC2), and presents with sodium wasting, hypokalaemia, hypomagnesaemia and hypercalciuria?

Accepted Answer

Bartter syndrome

Answer

Fanconi syndrome

Answer

Gitelman syndrome

Answer

Alport syndrome

Question 3

Which of the following is a late inward sodium channel blocker?

Accepted Answer

Ranolazine

Answer

Fasudil

Answer

Ivabradine

Answer

Trimetazidine

Question 4

What is the physiological condition in which the ratio of potassium permeability to sodium permeability (PK/PNa) is maximized?

Accepted Answer

Hyperpolarization

Answer

Depolarization

Answer

Action Potential

Answer

Resting Membrane Potential

Question 5

In large neurons the nucleus can be found a large distance away from the terminal end of its axon. The body has a complex system of intracellular transporters that are able to carry essential proteins from the nucleus to the distal edge of the cell and back. Which of the following proteins are essential for this function?

Accepted Answer

Dynein, Kinesin

Answer

Kinesin, Troponin

Answer

Myosin, Kinesin

Answer

Actin, Dynein

Answer

Glucose, Actin

Question 6

Insulin dependent glucose uptake occurs in:

Accepted Answer

Muscle

Answer

Brain

Answer

Epithelial cells of small intestine

Answer

Kidney

Question 7

Absolute refractoriness of a neuron is due to?

Accepted Answer

Inactivation of Na channels

Answer

Hyperpolarization of Cl channels

Answer

Opening of rectifier K+ channels

Answer

Closure of activated Na channels

Question 8

Which of these is true about the highlighted transporter?

Accepted Answer

One molecule goes in, other molecule goes out

Answer

Both molecules go in

Answer

Both molecules go out

Answer

One molecule goes in and two exit

Question 9

With reference to human body's requirement for proteins, they are essential because they are:

1. an important alternative source for energy during specific metabolic states.
2. the primary molecules responsible for maintenance of osmotic pressure within the extracellular compartment.
3. critical for upkeep of cell mediated immune response.
4. vital for the synthesis of certain hormones.

Which of the statements given above are correct?

Accepted Answer

1, 3 and 4

Answer

2, 3 and 4

Answer

1, 2 and 3

Answer

1, 2 and 4

Question 10

On insulin administration, what change is expected in the extracellular fluid (ECF)?

Accepted Answer

Hypoglycemia

Answer

Hyperkalemia

Answer

Hyponatremia

Answer

Hypocalcemia

Cellular Physiology

Study Resources

Lessons

Questions

Flashcards

Lessons

Cell Membrane Structure and Function

Membrane Transport Proteins

Cellular Energetics and Metabolism

Mitochondrial Function

Cell Volume Regulation

Cellular Responses to Stress

Calcium Signaling

Cell Cycle and Regulation

Cellular Aging

Apoptosis and Cell Death

Practice Questions

Flashcards

About Cellular Physiology for NEET-PG

Lessons in Cellular Physiology

Master Cellular Physiology