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Chemical Coordination and Integration question

2013 · Q62
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Chemical Coordination and Integration question

2013 · Q62

NEETBiologyChemical Coordination and IntegrationMCQ+4 / −1
Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristic and/or functions. NEET 2013 Biology - Chemical Coordination and Integration Question 26 English
  1. A
    A - Adrenal gland - located at the anterior part of kidney. Secrete catecholamines which stimulate glycogen breakdown.
  2. B
    C - Medulla - inner zone of kidney and contains complete nephrons.
  3. C
    B - Pelvis - broad funnel shaped space inner to hilum, directly connected to loops of Henle.
  4. D
    D - Cortex - outer part of kidney and do not contain any part of nephrons.
View written solutionFree

Correct answer: A

In the given figure, A is adrenal gland which secretes two catecholamines; adrenaline (epinephrine) and noradrenaline (norepinephrine). Adrenaline increases the conversion of glycogen to glucose providing quick energy for “fight or flight” response. B is renal pelvis which is a sac like cavity of the kidney leading to ureters, is not directly connected to loop of Henle. C is medulla, the inner region of kidney containing loop of Henle, collecting ducts and ducts of Bellini. D is cortex which has proximal and distal convoluted tubules and contains Malpighian corpuscles.

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