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प्रश्न
Which segment is the site of secretion and regulated reabsorption of ions and pH homeostasis?
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उत्तर
- Distal tubule
- Collecting duct
- In the renal tubules H+ and NH4 are secreted and liberated into the tubules and excreted through
urine thus maintaining acid-base balance. - For each H+ ions from the liberated filtrate one Na+ is reabsorbed in the tubules.
- The secreted HCO3, PO3 and NH3 combines to form carbonic acid and phosphoric acids.
- Thus the H+ are maintained and their reabsorption is prevented.
संबंधित प्रश्न
Explain the process of formation of urine with suitable diagram
Add a noteon composition of urine.
Where in the urinary system do the following processes take place?
- Urine formation: ______.
- Transport of urine away from kidney: ______.
- Temporary storage of urine: ______.
Define the following term:
Ultrafiltration
Give the working of the nephron.
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: In the Bowman’s capsule:
Concentration of urine depends upon which part of the nephron
If Henle’s loop were absent from mammalian nephron, which one of the following is to be expected?
Glomerular filtrate contains ______.
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 ball of inter twined capillaries.
Identify the biological term
Consists of the kidneys, ureters and bladder.
With regards to toxicity and the need for dilution in water, how different are ureotelic and uricotelic excretions? Give examples of animals that use these types of excretion?
The human kidney is histologically divided into ____________.
Complete the following:
Urinary excretion = Tubular reabsorption + Tubular secretion –
The composition of glomerular filtrate and urine is not same. Comment.
