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प्रश्न
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?
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उत्तर
Ureotelic animals excrete urea with minimum loss of water, e.g., Mammals and terrestrial amphibians. Uricotelic animals excrete uric acid with the least loss of water, e.g., Birds and reptiles.
संबंधित प्रश्न
Define the Glomerular Filtration Rate (GFR).
Explain the autoregulatory mechanism of GFR.
Define the following:
Dialysis
Fill in the blank.
When air is humid, the rate of transpiration is ..................
Define the following term:
Ultrafiltration
Give the working of the nephron.
Multiple Choice Question: In the Bowman’s capsule:
Answer the following question.
Effective filtration pressure was calculated to be 20 mmHg; where glomerular hydrostatic pressure was 70 mm of Hg. Which other pressure is affecting the filtration process? How much is it?
In which segment of the nephron most of the re-absorption of substances takes place?
If Henle’s loop were absent from mammalian nephron, which one of the following is to be expected?
Aldosterone acts at the distal convoluted tubule and collecting duct resulting in the absorption of water through ______.
Identify the biological term
A ball of inter twined capillaries.
Identify the biological term
Regulation of water and dissolved substances in blood and tissue fluid.
How is urea formed in the human body?
The correct path of transport of urine is ______
Sort the following into actively or passively transported substances during reabsorption of GFR.
glucose, amino acids, nitrogenous wastes, Na+, water
Name the substances other than water, that are reabsorbed during urine formation. What are the two parameters that decide the amount of water that is reabsorbed in the kidney?
Name the following:
Three stages of urine formation.
