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प्रश्न
How is urea formed in the human body?
उत्तर
More toxic ammonia produced as a result of breakdown of amino acids is converted into less toxic urea in the liver by a cyclic process called Ornithine cycle.
संबंधित प्रश्न
What is meant by the term osmoregulation?
Add a noteon composition of urine.
Where in the urinary system do the following processes take place?
- Urine formation: ______.
- Transport of urine away from kidney: ______.
- Temporary storage of urine: ______.
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.
When air is humid, the rate of transpiration is ..................
Answer the following in detail.
Explain the structure of a nephron with the help of a diagram.
Explain the terms ultrafiltration and selective absorption
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 filtrate consists of many substances such as water, salts, glucose and white blood corpuscles.
Mention any two vital functions of human kidney
What is micturition?
When a molecule or ion is reabsorbed from the lumen of the nephron, where does it go? If a solute is filtered and not reabsorbed from the tubule, where does it go?
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
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?
The osmotic pressure of blood that opposes ultrafiltration is about ______ mm Hg.
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
