Medical MCQ's

Which one is the heaviest particulate component of the cell?

(A) Nucleus
(B) Mitochondria
(C) Cytoplasm
(D) Golgi apparatus

Which of the following statement is correct about membrane cholesterol?

(A) The hydroxyl group is located near the centre of the lipid layer
(B) Most of the cholesterol is in the form of a cholesterol ester
(C) The steroid nucleus form forms a rigid, planar structure
(D) The hydrocarbon chain of cholesterol projects into the extracellular fluid

All the following processes occur rapidly in the membrane lipid bilayer except

(A) Flexing of fatty acyl chains
(B) Lateral diffusion of phospholipids
(C) Transbilayer diffusion of phopholipids
(D) Rotation of phospholipids around their long axes

Which is the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed?

(A) Endoplasmin reticulum
(B) Lysosomes
(C) Plasma membrane receptor
(D) Mitochondria

HDL is synthesized and secreted from

(A) Pancreas
(B) Liver
(C) Kidney
(D) Muscle

Synthesis of prostaglandinsis is inhibited by

(A) Aspirin
(B) Arsenic
(C) Fluoride
(D) Cyanide

Milk is deficient of which mineral?

(A) Phosphorus
(B) Sodium
(C) Iron
(D) Potassium

Milk is deficient in which vitamins?

(A) Vitamin C
(B) Vitamin A
(C) Vitamin B2
(D) Vitamin K

Vitamin B6 deficiency may occur during tuberculosis therapy with

A. Isoniazid

B. Rifampicin

C. Sulpha drugs

D. Thamibutole