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प्रश्न
What is meant by the term osmoregulation?
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उत्तर
- Kidneys continuously remove harmful substances from the body in the form of urine. Apart from this, the tissues also control the amount of salt and water in the liquid.
- When the amount of water in the body increases, that is, when the osmolality of the body fluid decreases, urine becomes thin (diluted) and its quantity increases.
- When there is a lack of water in the body, that is, when the osmolality of body tissue fluid increases, urine becomes thicker and its quantity reduces.
- The amount of urine is mainly controlled by aldosterone and antidiuretics. Aldosterone increases the reabsorption of Na+, so that the appropriate amount of Na+ is maintained in the environment.
- Antidiuretic or vasopressin, is the main regulator of urine dilution or concentration. Osmolality is controlled in the bodies of living beings through the process of osmotic regulation.
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संबंधित प्रश्न
Explain the autoregulatory mechanism of GFR.
Add a noteon composition of urine.
Draw neat and labelled diagrams of Malpighian capsule
Which of the following is the correct path taken by urine in our body?
Put a tick mark (✓) against the most appropriate alternative in the following statement :
Besides water, the urine mainly contains :
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.
Fill in the blank.
........................ is found in the seeds of poppy plants.
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
Multiple Choice Question: In the Bowman’s capsule:
What is micturition?
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 liquid which gathers in the bladder.
Identfiy the biological term
Temporary storage of urine.
Identify the biological term
Consists of the kidneys, ureters and bladder.
Na+ excretion in the urine is reduced by secretion of ______
Minimum reabsorption occurs in ______.
