SSC Biology Previous year questions Set 28

271. Adherent mucoid alkaline substance covering the inner lining of stomach is to :[SSC CGL Prelim 2002]
A. digest starch
B. act against bacteria
C. prevent the action of pepsin of mucosa
D. prevent viral infection
Answer –C. prevent the action of pepsin of mucosa

272. What are the basic units from which human spare parts can be created?[SSC CGL Prelim 2002]
A. Nerve cells
B. Stem cells
C. Heart cells
D. Kidney cells
Answer –B. Stem cells

273. Which was the first antibiotic ?[SSC CGL Prelim 2002]
A. Terramycin
B. Neomycin
C. Penicilin
D. Streptomycin
Answer –C. Penicilin

274. The area of the human tongue sensitive to bitterness is restricted to :[SSC CGL Prelim 2002]
A. tip
B. edges
C. middle part
D. posterior part
Answer –D. posterior part

275. Which of the following blood cells is compulsory for blood coagulation ?[SSC CGL Prelim 2002]
A. Platelets
B. Red Blood Corpuscles
C. White Blood Corpuscles
D. Lymphocites
Answer –A. Platelets

276. Amniocentesis is a method for :[SSC CGL Prelim 2002]
A. determination of foetal health conditions
B. determination of the amino acids sequence
C. inducing abortion
D. artificial insemination
Answer –A. determination of foetal health conditions

277. During photosynthesis the liberated gas is :[SSC CGL Prelim 2002]
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen
Answer –B. Oxygen

278. Virus contains: [SSC CGL Prelim 2002]
A. Protein and lipid
B. Nucleic acid and protein
C. Lipid and carbohydrate
D. Carbohydrate and nucleic acid
Answer –A. Protein and lipid

279. What may be the cause of malfunctioning of thyriod gland ?[SSC CGL Prelim 2002]
A. Iodine deficiency
B. Iron deficiency
C. Calcium deficiency
D. Vitamin C
Answer –A. Iodine deficiency

280. Which one of the following is NOT a function of kidney ?[SSC CPO Sub-Inspector 2003]
A. Regulation of blood pH
B. Removal of metabolic wastes from the body
C. Production of antibodies
D. Regulation of osmotic pressures of the blood
Answer –C. Production of antibodies

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