General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part20 : 36 to 40

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

36.A scientist was treating pathogenic bacteria with different chemicals to see which of them would stop the activity of their ribosomes. Which one of the following processes is the target ?

DNA synthesis

Digestion of proteins

Protein synthesis

Production of ATP

37.The blind spot in the eye : 1. is where the nerve fibres leave the eye2. has no light sensitive cells3. is part of the fovea4. is well developed in aged people

1 and 4

2 and 4

2 and 3

1 and 2

38.The heart pumps blood to the pulmonary and aortic arches. For this to happen, the four chambers of the heart have to contract in a definite sequence. Wheat is the sequence in which the contraction takes place ?1. Left ventricle2. Right auricle3. Right ventricle4. Left auricle

2, 4, 3, 1

1, 3, 2, 4

1, 4, 3, 2

4, 2, 3, 1

39.Short sightedness is due to :

shifting of the iris

weaker muscles

elongation of eye balls

weakening of the retina

40.The part of the cell which is essential for protein synthesis is :

chloroplast

ribosomes