Multiple Choice Questions

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Cells present in the inner lining of kidneys are :

  • podocytes

  • choanocytes

  • pinocytes

  • nephrocyte


A.

podocytes

Podocytes are the cells of Bowman's capsule in kidney. They are less flattened cells, which line the concavity of the Bowman's capsule. They possesses foot-like projections the pedicels.

Choanocytes or collar cells are cells that line the interior of asconoid, syconoid and leuconoid body type sponges that contain a central flagellum, or undulipodia, surrounded by a collar of microvilli which are connected by a thin membrane.

Nephrocytes are the specialized cells, present in arthropods. Their main function is the accumulation or formation of waste or excretory products.

Pinocytes are the flat cells found on the outermost layer of a sponge.


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Which of the following is the character of the bile juice?

  • It has trypsin

  • It has no enzyme

  • It has enterogasterone

  • It has tripophnomide


Average pH of human urine is :

  • 6.0

  • 9.0

  • 3.0

  • 7.0


Secretin hormone is secreted by :

  • liver

  • pancreas

  • intestine

  • Brunner's glands


Which of the following layer of heart wall consists of cardiac muscles ?

  • Endocardium

  • Myocardium

  • Epicardium

  • All of these


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The contraction of gall bladder is due to :

  • gastrin

  • secretin

  • enterogasterone

  • cholecystokinin


'P' wave of ECG occurs before the:

  • onset of ventricular ejection

  • end of atrial contraction

  • begining of atrial contraction

  • none of the above


Liver in our body stores:

  • Vitamin- A

  • Vitamin- D

  • Vitamin- B12

  • All of these


Blood pressure increases and heart rate decreases in response to :

  • exercise

  • haemorrhage

  • exposure to high altitude

  • increased intracranial pressure


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If heart beats 75 beats/min. then what is time for cardiac cycle ?

  • 0.5 sec

  • 0.8 sec

  • 1 sec

  • 1.5 sec