NEET Biology Solved Question Paper 2015

Multiple Choice Questions

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If the threshold for hearing increasing 1000 times, the hearing loss is

  • 40 decibels

  • 50 decibels

  •  60 decibels

  • None of these

D.

None of these

A decibel is a measure of the ratio between two sound stimuli. The decibel level of a sound that a normal human can hear and is calculated using the formula.

Intensity (in decibels) = 10 x log (sound/threshold)

Therefore, the intensity of a sound that is 1000 times, thresh hold is 30 Decibels.

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    Vitamin-B12 is absorbed primarily in the

    • Stomach

    • Duodenum

    • Jejunum

    • ileum

    Answer

    Which of the following act as an antigen, but do not induce antibody production?

    • Haustra

    • Histones

    • Haptens

    • None of these

    Answer

    The strongest muscle in the human is

    • Biceps

    • Gluteus maximus

    • Stapedius

    • Masseter

    Answer

    Carotid labyrinth contains

    • Olfactory receptors

    • Baroreceptors

    • Chemoreceptors

    • Phonoreceptors

    Answer
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    Which of the following animals possess non-elastic lungs with elastic air sacs connected to them?

    • Reptiles

    • Birds

    • Amphibians

    • Mammals

    Answer

    Parkinsonism is related with

    • Brain

    • Spinal Nerve

    • Cranial Nerves

    • All of these

    Answer

    Which hormone produces the calorigenic effect?

    • Thyroxine

    • FSH

    • Insulin

    • All of these

    Answer

    The faster breathing in high fever is due to the

    • Additional requirement of O2 for the invader germs

    • High temperature of the body

    • Mental worry of a patient

    • Loss of appetite

    Answer
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    Epiphyseal plates at the extremities of long bones help in

    • Bone moulding

    • Elongation of bone

    • Bone formation

    • Formation of Haversian Canal

    Answer