Advertisements
Advertisements
प्रश्न
Which segment is the site of secretion and regulated reabsorption of ions and pH homeostasis?
Advertisements
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
What is meant by the term osmoregulation?
Reabsorption of water from distal parts of the tubules is facilitated by hormone ______.
Draw neat and labelled diagrams of Malpighian capsule
Put a tick mark (✓) against the most appropriate alternative in the following statement :
Filtration of excretory wastes from the blood occurs in:
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.
State if the following statement is true or false. Correct the statement if it is false.
The Bowman’s capsule and glomerulus together form the Malpighian body.
Name the following:
Organ where ultrafiltration occurs.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Glomerular filtration occurs under pressure on the blood as a result of systolic pressure of the heart.
Identify the biological term
Produced when blood is filtered in a Bowman’s capsule.
Identfiy the biological term
Temporary storage of urine.
Identify the biological term
A ball of inter twined capillaries.
Identify the biological term
Removal of useful substances from glomerular filtrate.
Identify the biological term
Regulation of water and dissolved substances in blood and tissue fluid.
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?
What is tubular secretion? Name the substances secreted through the renal tubules.
During ultra:filtration, ____________ is unable to filter through the glomerular capillaries.
Which part of the nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?
What are the main processes of urine formation?
Sort the following into actively or passively transported substances during reabsorption of GFR.
glucose, amino acids, nitrogenous wastes, Na+, water
How does tubular secretion help in maintaining ionic and acid-base balance in body fluids?
