Multiple Choice Questions

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The resolving power of a compound microscope will increase with

  • decrease in wavelength of light and increase in numerical aperture

  • increase in wavelength of light and decrease in numerical aperture

  • increase in both wavelength of light and numerical aperture 

  • decrease in both wavelength of light and numerical aperture


A.

decrease in wavelength of light and increase in numerical aperture

 The resolving power of a compound microscope can be defined as the ability of the microscope to form separate images of two objects placed very close to each other. Now, the resolving power of microscope is the reciprocal of the minimum distance.


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Pellagra is caused due to deficiency of the vitamin

  • thiamine

  • niacinn

  • pyridoxin

  • biotin


The specific region of hypothalamus, responsible for physiological sweat secretion, is

  • para-ventricular nucleus

  • supra-optic nucleus

  • median eminence

  • pars distalis


Cells in G0 phase of cell cycle

  • exit cell cycle

  • enter cell cycle

  • suspend cell cycle

  • terminate cell cycle


Collagen is a

  • phosphoprotein

  • globulin

  • derived protein

  • scleroprotein


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Choose the correct non-protein amino acid

  • hydroxyproline

  • hydroxylysine

  • cystine

  • y-amino butyric acid


Osteomalacia is a disease caused by the deficiency of

  • calciferol

  • tocopherol

  • retinol

  • phylloquinone


The "Repeating Unit" of glycogen is

  • fructose

  • mannose

  • glucose

  • galactose


The major site of protein breakdown to form free amino acids is in the

  • kidney

  • spleen

  • liver

  • bone-marrow


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The duration of cardiac cycle is

  • 0.8 s

  • 0.8 µs

  • 0.08 s

  • 0.008 s