Same chapter3 marksDifficulty: Medium
Why is the kidney called an osmoregulatory organ as well as an excretory organ?
Excretory System
3 marksDifficulty: Medium
What is dialysis and when is it needed?
Original Khojo Papers practice question — not from a past board paper.
Answer
Dialysis is the artificial removal of urea and other wastes from the blood by passing it on one side of a semipermeable membrane with a dialysing fluid on the other. It is needed when the kidneys fail and can no longer filter the blood.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The dialysing fluid has the same concentration of glucose and salts as normal blood, so only wastes diffuse out.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
Why is the afferent arteriole of a glomerulus wider than the efferent arteriole?
Excretory System
Same chapter3 marksDifficulty: Medium
Name the substances present in normal urine and two that are absent from it in a healthy person.
Excretory System
Same chapter3 marksDifficulty: Medium
Name the parts of a nephron in the order in which the filtrate passes through them.
Excretory System
Same chapter3 marksDifficulty: Medium
Describe the three steps in the formation of urine.
Excretory System
Same chapter1 markDifficulty: Medium
Glucose is normally absent from urine because it is:
Excretory System