461. Which of the following statement iscorrect about membrane cholesterol?
A. The hydroxyl group is located near the centreof the lipid layer
B.Most of the cholesterol is in the form of acholesterol ester
C. The steroid nucleus form forms a rigid, planarstructure

462. Which one is the heaviest particulatecomponent of the cell?
A. Nucleus
B. Mitochondria
C. Cytoplasm
D. Golgi apparatus

463. Which one is the largest particulate of thecytoplasm?
A. Lysosomes
B. Mitochondria
C. Golgi apparatus
D.Entoplasmic reticulum

464. The degradative Processess are categorizedunder the heading of
A. Anabolism
B. Catabolism
C. Metabolism
D. None of the above

465. The exchange of material takes place
A. Only by diffusion
B. Only by active transport
C. Only by pinocytosis
D. All of these

466. The average pH of Urine is
A. 7.0
B. 6.0
C. 8.0
D. 0.0

467. The pH of blood is 7.4 when the ratio between H2CO3 and NaHCO3 is
A.1 : 10
B.1 : 20
C.1 : 25
D.1 : 30

468. The phenomenon of osmosis is oppositeto that of
A. Diffusion
B. Effusion
C.Affusion
D. Coagulation

469. The surface tension in intestinal lumenbetween fat droplets and aqueousmedium is decreased by
A. Bile Salts
B. Bile acids
C. Conc. H2SO4
D. Acetic acid

470. The most active site of protein synthesisis the
A. Nucleus
B. Ribosome
C. Mitochondrion
D. Cell sap

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