Excretory Products and their Elimination
- In the renal tubules the permeability of the distal convoluted tubule and collecting duct to water is controlled by
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Growth hormone, released by the anterior lobe of pituitary which brings about body growth by synthesis and deposition of proteins in tissues. Renin secreted by special cells in kidneys regulates blood pressure. Aldosterone reduces Na+ elimination by helping active reabsorption from the nephric filtrate.
Correct Option: A
Growth hormone, released by the anterior lobe of pituitary which brings about body growth by synthesis and deposition of proteins in tissues. Renin secreted by special cells in kidneys regulates blood pressure. Aldosterone reduces Na+ elimination by helping active reabsorption from the nephric filtrate.
- If kidney fail to reabsorb water, the effect on tissue would
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If kidneys fail to reabsorb water the urine will be diluted causing polyuria (frequent urination). Then the body tissues get dehydrated & the cell will loose water content & shrink.
Correct Option: B
If kidneys fail to reabsorb water the urine will be diluted causing polyuria (frequent urination). Then the body tissues get dehydrated & the cell will loose water content & shrink.
- Under normal conditions which one is completely reabsorbed in the renal tubule?
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The cells of Proximal Convoluted Tubule (PCT) reabsorb entire glucose, amino acids, most of the inorganic ions (Na+, K+, Cl-), most of the water as well as some urea. Glucose is reabsorbed actively and most effectively.
Correct Option: D
The cells of Proximal Convoluted Tubule (PCT) reabsorb entire glucose, amino acids, most of the inorganic ions (Na+, K+, Cl-), most of the water as well as some urea. Glucose is reabsorbed actively and most effectively.
- Brush border is characteristic of
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NA
Correct Option: C
NA