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प्रश्न
In which segment of the nephron most of the re-absorption of substances takes place?
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उत्तर
In proximal convoluted tubule cells, Glucose, lactate, amino acids, Na+ and water, are reabsorbed. In the descending limb of Henle’s loop, water is reabsorbed. In the ascending limb, Na+, Cl and K+ are reabsorbed. In the distal convoluted tubule, water is reabsorbed.
संबंधित प्रश्न
Define the Glomerular Filtration Rate (GFR).
Glucose is taken back from glomerular filtrate ___________
(A) along with concentration gradient
(B) against concentration gradient
(C) by simple diffusion
(D) by tubular secretion
Explain the process of formation of urine with suitable diagram
Draw neat and labelled diagrams of Malpighian capsule
Write down the functional activity of the following parts,
Urethra ……………………
Explain the terms ultrafiltration and selective absorption
Give Reasons for the following:
As a result of ultrafiltration along with excretory products certain useful products like glucose, salt, etc. are also filtered but these are not excreted?
Multiple Choice Question: Ultrafiltration occurs in:
Mention any two vital functions of human kidney
If the afferent arteriole of the nephron constricts, what happens to the GFR in that nephron? If the efferent arteriole constricts what happens to the GFR in that nephron? Assume that no auto regulation takes place.
Aldosterone acts at the distal convoluted tubule and collecting duct resulting in the absorption of water through ______.
Identify the biological term
Produced when blood is filtered in a Bowman’s capsule.
Identify the biological term
A liquid which gathers in the bladder.
Identify the biological term
A ball of inter twined capillaries.
Na+ excretion in the urine is reduced by secretion of ______
First step in urine formation is ______.
Sort the following into actively or passively transported substances during reabsorption of GFR.
glucose, amino acids, nitrogenous wastes, Na+, water
