Excretory Products And Their Elimination Question 36
Question: Kidneys help in the conservation of useful materials and excretion of wastes and therefore they receive 20% of the heart’s output of blood (as much as the heart and brain combined). On a percentage basis, which substance is most completely reabsorbed by the kidneys?
Options:
A) Water
B) Glucose
C) Urea
D) Sodium
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Glucose is 100% reabsorbed and thus, a healthy person will excrete no glucose in the urine.
Sodium and water are usually over 99% reabsorbed.
Urea is the main excretory product formed as a result of protein breakdown.
BETA
