If the threshold for hearing increasing 1000 times, the hearing l

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Vitamin-B12 is absorbed primarily in the

  • Stomach

  • Duodenum

  • Jejunum

  • ileum


2.

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


3.

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

  • Reptiles

  • Birds

  • Amphibians

  • Mammals


4.

Carotid labyrinth contains

  • Olfactory receptors

  • Baroreceptors

  • Chemoreceptors

  • Phonoreceptors


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5.

Epiphyseal plates at the extremities of long bones help in

  • Bone moulding

  • Elongation of bone

  • Bone formation

  • Formation of Haversian Canal


6.

The strongest muscle in the human is

  • Biceps

  • Gluteus maximus

  • Stapedius

  • Masseter


7.

Parkinsonism is related with

  • Brain

  • Spinal Nerve

  • Cranial Nerves

  • All of these


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8.

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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9.

Which hormone produces the calorigenic effect?

  • Thyroxine

  • FSH

  • Insulin

  • All of these


10.

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

  • Haustra

  • Histones

  • Haptens

  • None of these


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