Neuropeptides and neurotransmitters are molecules secreted by neu

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Which of the following element is required for production of thyroxin?

  • NaCl

  • Iodine

  • Bromine

  • Fluorine


2.

Receptors for FSH is present on:

  • Leydig cells

  • Sertoli cells

  • Peritubular cells

  • Spermatogonium germ cells


3.

During gametogenesis in male, cell during development are termed as primary spermatocytes when they are :

  • Before meiosis - I

  • After meiosis - I

  • After meiosis - II

  • Mature sperms


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4.

Neuropeptides and neurotransmitters are molecules secreted by neuron. Which statement is correct statement about neuropeptide as compare to neurotransmitter?

  • Less potent and short acting

  • More potent but short acting

  • Less potent but long acting

  • More potent and longer acting


D.

More potent and longer acting

The main difference between neuropeptide and neurotransmitter is that neuropeptides are slow-acting and produce a prolonged action whereas neurotransmitters are fast acting and produce a short-term response.


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5.

There is small gap between two neurons at synapses. the purpose of gap is

  • unidirectional flow of information

  • reabsorption of neurotransmitter

  • Coupling of charge over membrane

  • slow down speed of propagation


6.

Which of the following is not a characteristic of phylum Chordata?

  • Pharyngeal slits

  • Amniotic egg

  • Post and tail

  • Notochord


7.

If the core body temperature of a human rise above normal, which of the following processes would be initiated sequentially for thermo‐regulation?

  • Peripheral vasodilation, increased rate of respiration, tachycardia

  • Peripheral vasodilation, increased rate of respiration, bradycardia

  • Peripheral vasodilation, decreased rate of respiration, tachycardia

  • Peripheral vasodilation, decreased rate of respiration, bradycardia


8.

During urine formation the filtration of blood at the glomerulus is

  • An active process

  • An osmotic process

  • Is a pressure- dependent physical process

  • An non-energy- mediated transport process


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9.

Which statement is not correct for blood?

  • Mature RBC is of larger size as compare to its precursor cells

  • Platelets play important role in blood clotting   

  • Neutrophils are major phagocytic cells   

  • Basophils are present in least amount  


10.

When a person enters a dark room from bright sunlight he cannot see anything for a few seconds because

  • Rhodopsin pigment of rod cells is inactivated in bright light which takes time and is activated in dark and associate with opsin protein.     

  • Scotoposin proteins of rods are denatured  

  • All Scotoposin are bound with retinal in rod cells   

  • All Scotoposin becomes non-functional in bright light     


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