URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In reabsorption, the solutes are reabsorbed across the filtration membrane into the interstitial fluid by transport processes, such as active transport and cotransport.
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In secretion, solutes are secreted across the wall of the nephron into the filtrate.
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Filtration is the movement of materials across the wall of the nephron into Bowman’s capsule to form a filtrate.
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All statements need further evaluation.
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Detailed explanation-1: -Answer: C. In secretion, solutes are secreted across the wall of the nephron into the filtrate. C: In secretion, solutes are secreted across the wall of the nephron into the filtrate. A: Filtration is the movement of materials across the filtration membrane into Bowman’s capsule to form a filtrate.
Detailed explanation-2: -Filtrate moves from Bowman’s capsule to the proximal tubule and into the loop of Henle, which dives into the renal medulla before returning to the renal cortex. From the loop of Henle, filtrate is transferred to the distal tubule and into the collecting duct, where it travels into the renal medulla for collection.
Detailed explanation-3: -Tubular secretion occurs throughout the different parts of the nephron, from the proximal convoluted tubule to the collecting duct at the end of the nephron.
Detailed explanation-4: -The majority of drugs do not enter the kidney tubule by glomerular filtration but do so by tubule secretion. This is an active process since drugs are carried against a favourable chemical gradient from the capillary network into the tubule.