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Question
How is urea formed in the human body?
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Solution
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.
RELATED QUESTIONS
Draw neat and labelled diagrams of Malpighian capsule
Define the following:
Nephron
Where in the urinary system do the following processes take place?
- Urine formation: ______.
- Transport of urine away from kidney: ______.
- Temporary storage of urine: ______.
Answer the following in detail.
Explain the structure of a nephron with the help of a diagram.
Give the working of the nephron.
Give Reasons for the following:
As a result of ultrafiltration along with excretory products certain useful products like glucose, salt, etc. are also filtered but these are not excreted?
Differentiate between Afferent arteriole and Efferent arteriole.
Write the functional activity of the following structure: Bowman’s capsule
Higher Order Thinking Skill
Why do you think that urine analysis is an important part of medical diagnosis?
If the afferent arteriole of the nephron constricts, what happens to the GFR in that nephron? If the efferent arteriole constricts what happens to the GFR in that nephron? Assume that no auto regulation takes place.
The end product of Ornithine cycle is ______.
Identify the biological term
Produced when blood is filtered in a Bowman’s capsule.
Identify the biological term
Each contains a glomerulus.
The human kidney is histologically divided into ____________.
Minimum reabsorption occurs in ______.
The pH of human urine is approximately ______.
Sort the following into actively or passively transported substances during reabsorption of GFR.
glucose, amino acids, nitrogenous wastes, Na+, water
How does tubular secretion help in maintaining ionic and acid-base balance in body fluids?
