Assertion `:-` An increase in body fluid volume activate osmoreceptors , which stimulate the hypothelamus to release ADH.
Reason `:-` ADH facilitates water reabsorptin from later parts of the tubule.

Which of the following statements is INCORRECT? I. Human kidneys can produce urine nearly six times more concentrated than the initial filtrate formed. II. An increase in body fluid volume can switch on the osmoreceptors and stimulate ADH. III. Substance like glucose, amino acids, Na^+ , etc., in the filtrate, are reabsorbed actively by the renal tubule whereas the nitrogenous wastes are absorbed by passive transport IV. Each kidney has nearly one million complex tubular structures called nephrons which are the functional units.

Which of the following statements is INCORRECT? I. Human kidneys can produce urine nearly six times more concentrated than the initial filtrate formed. II. An increase in body fluid volume can switch on the osmoreceptors and stimulate ADH. III. Substance like glucose, amino acids, Na^+ , etc., in the filtrate, are reabsorbed actively by the renal tubule whereas the nitrogenous wastes are absorbed by passive transport IV. Each kidney has nearly one million complex tubular structures called nephrons which are the functional units.

Assertion: The functioning of the kidney is efficiently monitored by hormonal feedback mechanism involving the hypothalamus, JGA and the heart. Reason: An excessive loss of huid from the body can activate the osmoreceptors which stimulate the hypothalamus to release ADH from the adenohypophysis. .

Assertion :- Angiotensin II, activates the adrenall cortex to release aldosterone. Reason :- Aldosterone causes reabsorption of Na^(o+) and water from the distal parts of the tubule.

Assertion :- Angiotensin II, activates the adrenall cortex to release aldosterone. Reason :- Aldosterone causes reabsorption of Na^(o+) and water from the distal parts of the tubule.

Which of the following sequence is correct? (i) An increase in body fluid volume rarr switch off the osmoreceptors rarr suppresses the ADH Release (ii) ADH rarr Constricting effect on blood vessel rarr B.P. high rarr Glomerular blood flow more rarr GFR more (iii) Angiotensinogen rarr Angiotensin I rarr Angiotensin II rarr Adrenal cortex rarr Aldosterone (iv) Angiotensin rarr ADH rarr GFR more rarr Aldosterone rarr B.P. high

Which of the following sequence is correct? (i) An increase in body fluid volume rarr switch off the osmoreceptors rarr suppresses the ADH Release (ii) ADH rarr Constricting effect on blood vessel rarr B.P. high rarr Glomerular blood flow more rarr GFR more (iii) Angiotensinogen rarr Angiotensin I rarr Angiotensin II rarr Adrenal cortex rarr Aldosterone (iv) Angiotensin rarr ADH rarr GFR more rarr Aldosterone rarr B.P. high (a) i, ii and iii (b) i, ii and iv (c) ii, iii and iv (d) iii, iv and ii