Advertisements
Advertisements
प्रश्न
The following substances are the excretory products in animals. Choose the least toxic form among them?
विकल्प
Urea
Uric acid
Ammonia
Carbon dioxide
Advertisements
उत्तर
Ammonia
Explanation:
Ammonia is the most toxic form and requires a large amount of water for its elimination, whereas uric acid, being the least toxic, can be removed with a minimum loss of water.
APPEARS IN
संबंधित प्रश्न
Define the Glomerular Filtration Rate (GFR).
Explain the autoregulatory mechanism of GFR.
Dialysis fluid contains all the constituents as in plasma except ______.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Glomerular filtrate consists of many substances such as water, salts, glucose and white blood corpuscles.
Multiple Choice Question: In the Bowman’s capsule:
Which segment is the site of secretion and regulated reabsorption of ions and pH homeostasis?
If Henle’s loop were absent from mammalian nephron, which one of the following is to be expected?
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.
Identify the biological term
Regulation of water and dissolved substances in blood and tissue fluid.
Na+ excretion in the urine is reduced by secretion of ______
The osmotic pressure of blood that opposes ultrafiltration is about ______ mm Hg.
Which part of the nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?
The pH of human urine is approximately ______.
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
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?
A large quantity of fluid is filtered every day by the nephrons in the kidneys. Only about 1% of it is excreted as urine. The remaining 99% of the filtrate ______.
