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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