General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part4 : 41 to 45

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

41.Convex lenses are used for the correction of

astigmatism

short sightedness

cataract

long sightendness

42.The salivary glands secrete saliva which contains the enzyme

pepsin

renin

ptyalin

lipase

43.Blood does not clot in the absence of Vitamin K because it is :

essential for synthesis of prothrombin

essential for synthesis of fibrinogen

an essential component of the clot

an essential component of the platelets

44.Which part of the donors eye is used for grafting in order to cure certain diseases of blindness ?

Retina

Cornea

Lens

Eye-ball

45.The heart of human embryo starts beating

in the first week of its development

in the third week of its development

in the fourth week of its development

in the sixth week of its development

More General Science QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha

Opportunity is missed by most people because it is dressed in overalls and looks like work.- Thomas Edison

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