HSSC Dark Room Attendant / Dt.-31-12-2022 Evening Shift (Cat. No.-16)Total Questions: 10041. Which of the following is not a neurotransmitter?(a) Acetylcholine(b) Glutamic acid(c) Tyrosine(d) None of the aboveCorrect Answer: (c) Tyrosine42. Which of the following hormones is responsible for the activation of phospholipase C?(a) Cortisol(b) Adrenalin(c) Serotonin(d) VasopressinCorrect Answer: (d) Vasopressin43. Which of the following is an investigation of the muscle cell's sarcolemma?(a) Microtubules(b) T-tubules(c) Cisternae(d) Sarcoplasmic reticulaCorrect Answer: (b) T-tubules44. Which of the following enzymes is used in PCR?(a) EcoR II(b) EcoR I(c) Taq DNA polymerase(d) HRPCorrect Answer: (c) Taq DNA polymerase45. When the velocity of enzyme activity is plotted against substrate concentration, which of the following is obtained?(a) Parabola(b) Straight line with negative slope(c) Straight line with positive slope(d) Hyperbolic curveCorrect Answer: (d) Hyperbolic curve46. Which of the following is an example of epimers?(a) Glucose and Ribose(b) Ribose and Galactose(c) Galactose and Mannose(d) Glucose and GalactoseCorrect Answer: (b) Ribose and Galactose47. Which of the following catalyzes the reversible degradation of 2-phosphoglycerate to phosphoenolpyruvate?(a) Trypsin(b) Enolase(c) Hexokinase(d) ChymotrypsinCorrect Answer: (b) Enolase48. What is the lifespan of platelets?(a) 1 month(b) 14 days(c) 8-12 days(d) 1-7 daysCorrect Answer: (c) 8-12 days49. If the blood of two different groups are mixed together, what problem is observed?(a) Agglutination(b) Embolism(c) Coagulation(d) Thrombus formationCorrect Answer: (a) Agglutination50. What is the optimum temperature to store blood right after collecting it?(a) 22°C(b) 20°C(c) 15°C(d) 14°CCorrect Answer: (a) 22°CSubmit Quiz« Previous12345678910Next »
