89.

70.

71.

72.

73.

74.

76.

Kukaryotes differ from prokaryoles in mechanism of DNA replication due to :
(A) Discontinuous rather than semi discontinuous replication

{ए} Diffarent enzyme for synthesis of lagging and leading strand

{C) Use of DNA primer rather ‏حمطا‎ RNA primer

(D) Unidirectional rather than bidirectional replication

The substance most likely to cause a rapid drop in blood pressure is :
(ಗೆ) Epinephrine (8) Serotonin (C) Histamine (D) Angiotensin 11

The translocation of Ca2* across a membrane involve all of the following except :

(ക) Phosphorylation of transporter

൫) Maintaining [Ca®* ] very much higher in the cell than in extracellular fluid

(ര Regulation by the binding of a a2t — Calmodulin complex to the transporter in
eukaryotes

(D) Active transport by Ca?* — ransporting ATPase

All of the following represent control of a metabolic process by substrate availability
except :

(A) Rate of ketogenesis

(B) Increased urea synthesis after-a high protein meal

)© Hypoglycemia of advanced starvation

(D) Response of glycolysis to fructose 2, 6-biphosphate

F factor integrates with 02001121 (0210501118 10 1೧೯೧) 7
(ക) ‏کا‎ ஙு ணா ௦ (೧) RIF

The surface tension in intestinal lumen between fat droplets and aqueous medium is
decreased by :
(ക) Bile Salts (8) Bile acids (C) Conc. HSO; (D) Acetic acid

The immunoglobulin with the longest serum half-life is ;
(५) 10 © 4 € ‏رص ھا‎ 185

‎the following contribute to the large, negative, free-energy change upon hydrolysis of‏ اہ تل۸
‎“high energy"” compounds except :‏

‎(வ) Electrostatic repulsion in the reactant

‎(B) பண activation energy of forward reaction

‎(C) Stabilization of products by extra resonance forms
(D) Stabilization of products by ionization

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