SSC Biology Previous year questions Set 3

21.Which is the largest gland in human body?[SSC CGL Tier-I (CBE) 2016]
A. Liver
B. Thyroid
C. Pituitary
D. Salivary gland

Answer –A. Liver

22.Spraying of DDT on crops causes pollution of ……[SSC CGL Tier-I (CBE) 2016]
A. Air & Soil
B. Crops & Air
C. Soil & Water
D. Air & Water

Answer –C. Soil & Water

23.The xylem in plants are responsible for : [SSC CGL Tier-I (CBE) 2016]
A. transport of water
B. transport of food
C. transport of amino acids
D. transport of oxygen

Answer –A. transport of water

24.Clove is obtained from_ [SSC CGL Tier-I (CBE) 2016]
A. Root
B. Stem
C. Leaves
D. Flower buds

Answer –D. Flower buds

25.Harvesting season of Kharif crop in India is ___[SSC CGL Tier-I (CBE) 2016]
A. January, March
B. February, April
C. September, October
D. November, January

Answer –C. September, October

26.Which of the following is used as anaesthetics? [SSC CGL Tier-I(CBE) 2016]
A. N2
B. N2O
C. CH4
D. CO2

Answer –B. N2O

27.Which cells in the pancreas produce Insulin? [SSC CGL Tier-I (CBE) 2016]
A. Thymus
B. Estrogen
C. Corpus epididymis
D. Islets of Langerhans

Answer –D. Islets of Langerhans

28. Which organ gets affected in Weil’s disease? [SSC CGL Tier-I (CBE) 2016]
A. Liver
B. Lung
C. Heart
D. Kidney

Answer –D. Kidney

29.Which of the following vitamins help in the absorption of calcium? [SSC CGL Tier-I (CBE) 2016] A. Vitamin A
B. Vitamin D
C. Vitamin B
D. Vitamin C

Answer –B. Vitamin D

30.Which of the following bacterium causes crown gall disease in plants?[SSC CGL Tier-I (CBE) 2016] A. Bacillus thurigiensis
B. Agrobacterium tumefaciens
C. Pseudomonas fluorescens
D. None of these

Answer –B. Agrobacterium tumefaciens

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