1. A drug which prevents uric acid synthesis
    by inhibiting the enzyme xanthine
    oxidase is
    (A) Aspirin (B) Allopurinol
    (C) Colchicine (D) Probenecid
  2. Which of the following is required for
    crystallization and storage of the
    hormone insulin?
    (A) Mn++ (B) Mg++
    (C) Ca++ (D) Zn++
  3. Oxidation of which substance in the body
    yields the most calories
    (A) Glucose (B) Glycogen
    (C) Protein (D) Lipids
  4. Milk is deficient in which vitamins?
    (A) Vitamin C (B) Vitamin A
    (C) Vitamin B2 (D) Vitamin K
  5. Milk is deficient of which mineral?
    (A) Phosphorus (B) Sodium
    (C) Iron (D) Potassium
  6. Synthesis of prostaglandinsis is inhibited
    by
    (A) Aspirin (B) Arsenic
    (C) Fluoride (D) Cyanide
  7. HDL is synthesized and secreted from
    (A) Pancreas (B) Liver
    (C) Kidney (D) Muscle
  8. Which are 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
  9. Which of the following phospholipids is
    localized to a greater extent in the outer
    leaflet of the membrane lipid bilayer?
    (A) Choline phosphoglycerides
    (B) Ethanolamine phosphoglycerides
    (C) Inositol phosphoglycerides
    (D) Serine phosphoglycerides
  10. 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
  11. 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। D) The hydrocarbon chain of cholesterol projects into the extracellular fluid
  12. Which one is the heaviest particulate component of the cell?(A) Nucleus (B) Mitochondria(C) Cytoplasm (D) Golgi apparatus
  1. Which one is the heaviest particulate
    component of the cell?
    (A) Nucleus (B) Mitochondria
    (C) Cytoplasm (D) Golgi apparatus
  2. Which one is the largest particulate of the
    cytoplasm?
    (A) Lysosomes
    (B) Mitochondria
    (C) Golgi apparatus
    (D) Entoplasmic reticulum
  3. The degradative Processess are categorized
    under the heading of
    (A) Anabolism (B) Catabolism
    (C) Metabolism (D) None of the above
  4. The exchange of material takes place
    (A) Only by diffusion
    (B) Only by active transport
    (C) Only by pinocytosis
    (D) All of these
  5. The average pH of Urine is
    (A) 7.0 (B) 6.0
    (C) 8.0 (D) 0.0
  6. The pH of blood is 7.4 when the ratio
    between H2CO3 and NaHCO3 is
    (A) 1 : 10 (B) 1 : 20
    (C) 1 : 25 (C) 1 : 30
  7. The phenomenon of osmosis is opposite
    to that of
    (A) Diffusion (B) Effusion
    (C) Affusion (D) Coagulation
  8. The surface tension in intestinal lumen
    between fat droplets and aqueous
    medium is decreased by
    (A) Bile Salts (B) Bile acids
    (C) Conc. H2SO4 (D) Acetic acid
  9. Which of the following is located in the
    mitochondria?
    (A) Cytochrome oxidase
    (B) Succinate dehydrogenase
    (C) Dihydrolipoyl dehydrogenase
    (C) All of these
  10. The most active site of protein synthesis
    is the
    (A) Nucleus (B) Ribosome
    (C) Mitochondrion (D) Cell sap
  11. The fatty acids can be transported into
    and out of mitochondria through
    (A) Active transport
    (B) Facilitated transfer
    (C) Non-facilitated transfer
    (D) None of these
  12. Mitochondrial DNA is
    (A) Circular double stranded
    (B) Circular single stranded
    (C) Linear double helix
    (D) None of these
  13. The absorption of intact protein from the
    gut in the foetal and newborn animals
    takes place by
    (A) Pinocytosis (B) Passive diffusion
    (C) Simple diffusion (D) Active transport
  14. The cellular organelles called “suicide
    bags” are
    (A) Lysosomes (B) Ribosomes
    (C) Nucleolus (D) Golgi’s bodies
  15. From the biological viewpoint, solutions
    can be grouped into
    (A) Isotonic solution
    (B) Hypotonic solutions
    (C) Hypertonic solution
    (D) All of these
  16. Bulk transport across cell membrane is
    accomplished by
    (A) Phagocytosis (B) Pinocytosis
    (C) Extrusion (D) All of these
  17. The ability of the cell membrane to act as
    a selective barrier depends upon
    (A) The lipid composition of the membrane
    (B) The pores which allows small molecules
    (C) The special mediated transport systems
    (D) All of these