661 Which of the following are responsible for the detection of changes in environment? Biology Medium Full question → A Receptors B Neurons C Effectors D All of these
662 Maximum speed of nerve impulse transmission is____________? Biology Medium Full question → A 100 m/sec B 110 m/sec C 120m/sec D 130 m/sec.
663 Which of the following has no central nervous system? Biology Medium Full question → A Hydra B Man C Planaria D Cockroach
664 Na+ -K+ ATPase pump is important for_______________? Biology Medium Full question → A Maintenance of resting potential B Massive out flux of K+ after depolarization C Recovery of resting potential D Conversion of resting potential into action potential
665 Number of pairs of cranial nerves is__________? Biology Medium Full question → A 10 B 11 C 12 D 13
666 Normal action potential of a neuronal cell is ___________? Biology Medium Full question → A plus 50 mv B plus 60 mv C plus 70 mv D plus 80 mv
667 Insufficient secretion of iodothyroxine in adults causes____________? Biology Medium Full question → A Myxedema B Cretinism C Goiter D Exopthalmic goiter
668 Normal resting membrane potential of a neuron is_____________? Biology Medium Full question → A – 50 mv B – 60 mv C – 70 mv D – 80 mv
669 Insulin and glucagons are __________ in nature. Biology Medium Full question → A Protein B Amino acid derivative C Polypeptide D Steroid
670 At the induction of action potential opening of Na+ gate with influx of Na+ is a ___________ processes? Biology Medium Full question → A Active transport B Passive transport C Diffusion D none of these
671 MSH is produced from___________? Biology Medium Full question → A Anterior pituitary B Median pituitary C Posterior pituitary D None of these
672 Grave’s disease is produced due to____________? Biology Medium Full question → A Undersecretion of thyroxin B Overproduction of thyroxin C Undersecretion of corticosteroids D Overproduction of corticosteroids
673 Cell membrane under resting conditions is impermeable to all the ions except_____________? Biology Medium Full question → A Na+ B K+ C Cl- D PO4-2
674 Maintenance of normal resting potential via movement of K+ inside the cell and na+ out is a/an ___________ process? Biology Medium Full question → A Active B Passive C Diffusional D None of these.
675 Type of neurons found exclusively in CNS are_____________? Biology Medium Full question → A Sensory neurons B Motor neurons C Associative neurons D None of these
676 Secretin is a hormone produced by___________? Biology Medium Full question → A Stomach B Liver C Pancreas D Duodenum
677 Which of the following statement about neuron is incorrect___________________? Biology Medium Full question → A They not only conduct impulses but also generate them B They are not the only cellular component of nervous system C They may show limited regenerative capabilities D Like all the living cell, when they mature and divide to form similar cells
678 All of the following are similarities between nervous and endocrine system except:_____________? Biology Medium Full question → A Produce chemical messengers B Release chemical messengers in extracellular space C Homestatic in function D Having slow but prolonged effects
679 Nissl’s granules are present in which part of the neuron_________________? Biology Medium Full question → A Axoplasm B Myelin sheath C Dendrite D Soma
680 Types of behaviour enabling pillbugs to reach moist area is___________? Biology Medium Full question → A Kinesis B Taxes C Instinct D Learning