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1116. Blood does not colt in the absence of Vitamin K because it is :
A. essential for synthesis of prothrombin
B. essential for synthesis of fibrinogen
C. an essential component of the colt
D. an essential component of the platelets
Explanation:
1117. A popping sound is heard in the ear when yawning or swallowing. This is caused by :
A. air in the cochlea
B. the opening of the Eustachian tubes
C. air entering the perilymph
D. the moving of the jaws
Explanation:
1118. Which of the following statements regarding nitrogen nutrition of plants is wrong ?
A. Legumes do not require nitrogen fertilisers
B. Green plants can fix nitrogen from the atmosphere into nitrate
C. The problem of nitrogen fertiliser could be reduced if Rhizobium can be grown in the roots of cereal plants.
D. Only a few gifted prokaryotes can fix atmospheric nitrogen into nitrate
Explanation:
1119. Diabetes is caused due to the malfunctioning of :
A. liver
B. kidneys
C. pancreas
D. spleen
Explanation:
1120. The hormone responsible for the secretion of milk in mothers is :
A. adrenalin
B. locatogenic hormone
C. ACTH
D. lentinzing hormone
Explanation:
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