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प्रश्न
The following substances are the excretory products in animals. Choose the least toxic form among them?
विकल्प
Urea
Uric acid
Ammonia
Carbon dioxide
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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.
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संबंधित प्रश्न
Define the Glomerular Filtration Rate (GFR).
Glucose is taken back from glomerular filtrate ___________
(A) along with concentration gradient
(B) against concentration gradient
(C) by simple diffusion
(D) by tubular secretion
Put a tick mark (✓) against the most appropriate alternative in the following statement :
Besides water, the urine mainly contains :
Define the following:
Nephron
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.
Differentiate between
bowman’s capsule and glomerulus.
Write down the functional activity of the following parts,
Urethra ……………………
Define the following term:
Ultrafiltration
Higher Order Thinking Skill
Why do you think that urine analysis is an important part of medical diagnosis?
In which segment of the nephron most of the re-absorption of substances takes place?
What solute is normally present in the body to estimate GFR in humans?
Concentration of urine depends upon which part of the nephron
If Henle’s loop were absent from mammalian nephron, which one of the following is to be expected?
Glomerular filtrate contains ______.
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
What solute the blood contains that are not present in the glomerular filtrate?
What is the nitrogenous waste produced by amphibian larvae and by the adult animal?
What are the main processes of urine formation?
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?
