Biology MCQs

Page No. 47

Normal action potential of a neuronal cell is ___________?


aplus 50 mv

✓


bplus 60 mv

✖


cplus 70 mv

✖


dplus 80 mv

✖


View Answer plus 50 mv

Insufficient secretion of iodothyroxine in adults causes____________?


a Myxedema

✓


bCretinism

✖


cGoiter

✖


dExopthalmic goiter

✖


View Answer Myxedema

Normal resting membrane potential of a neuron is_____________?


a– 50 mv

✖


b– 60 mv

✖


c– 70 mv

✓


d– 80 mv

✖


View Answer – 70 mv

Insulin and glucagons are __________ in nature.


aProtein

✓


bAmino acid derivative

✖


cPolypeptide

✖


dSteroid

✖


View Answer Protein

Acromegaly is caused due to oversecretion of____________?


aSTH

✖


bTSH

✖


cACTH

✖


dThyroxin

✓


View Answer Thyroxin

At the induction of action potential opening of Na+ gate with influx of Na+ is a ___________ processes?


aActive transport

✖


bPassive transport

✓


cDiffusion

✖


dnone of these

✖


View Answer Passive transport

MSH is produced from___________?


aAnterior pituitary

✖


bMedian pituitary

✓


cPosterior pituitary

✖


dNone of these

✖


View Answer Median pituitary

Grave’s disease is produced due to____________?


aUndersecretion of thyroxin

✖


bOverproduction of thyroxin

✓


cUndersecretion of corticosteroids

✖


dOverproduction of corticosteroids

✖



Cell membrane under resting conditions is impermeable to all the ions except_____________?


aNa+

✖


bK+

✓


cCl-

✖


dPO4-2

✖


View Answer K+

Maintenance of normal resting potential via movement of K+ inside the cell and na+ out is a/an ___________ process?


aActive

✓


bPassive

✖


cDiffusional

✖


dNone of these

✖


View Answer Active

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