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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
Define the Glomerular Filtration Rate (GFR).
Add a noteon composition of urine.
Which of the following is the correct path taken by urine in our body?
Fill in the blank :
Evaporation of sweat from the skin surface has ............... effect.
Write True (T) or False (F) for the following statement. Rewrite the false statement in the correct form.
Medulla of kidney passes urine into urinary bladder.
Where in the urinary system do the following processes take place?
- Urine formation: ______.
- Transport of urine away from kidney: ______.
- Temporary storage of urine: ______.
What is meant by osmoregulation?
Fill in the blank.
When air is humid, the rate of transpiration is ..................
One of the following sets of body parts or substances or processed, pick out the one item which overall includes the remaining foir.
ADH, Water, pituitary, osmoregulation, urine
Give the working of the nephron.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Sometimes urine may contain certain excess vitamins.
Higher Order Thinking Skill
Why do you think that urine analysis is an important part of medical diagnosis?
How is urea formed in the human body?
What is tubular secretion? Name the substances secreted through the renal tubules.
During ultra:filtration, ____________ is unable to filter through the glomerular capillaries.
First step in urine formation is ______.
Minimum reabsorption occurs in ______.
Sort the following into actively or passively transported substances during reabsorption of GFR.
glucose, amino acids, nitrogenous wastes, Na+, water
Name the following:
Three stages of urine formation.
