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NEET Biology question

BiologyExcretory Products and Their EliminationNEET

Choose the correct ones. I. Vasa recta is lacking in cortical nephrons II. Maximum number of nephrons in kidney are juxta-medullary type III. DCT of many nephrons open into collecting tubule IV. During summer when body loses lot of water by evaporation, the release of ADH is stimulated V. When someone drinks lot of water, ADH release is suppressed VI. Exposure to cold temperature stimulates ADH release VII. A fall in glomerular blood flow stimulates formation of angiotensin II

Answer: (D)

Solution

Vasa recta is indeed lacking (reduced) in cortical nephrons (I, true); the DCTs of many nephrons do open into a shared collecting tubule (III, true); during summer, evaporative water loss dehydrates the body, so ADH release is stimulated, not suppressed (IV, true); drinking a large amount of water dilutes the blood

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Question ID VK-116679