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Excretory Products and their Elimination · Question 48

AIPMT 2005MCQEasy📈 Topic in 0% papers+4−1
1

A person is undergoing prolonged fasting. His urine will be found to contain abnormal quantities of

  1. fats
  2. amino acids
  3. glucose
  4. ketones.

Answer

(4) ketones.

Solution

During prolonged fasting, the glycogen reserve is used up and the body oxidises stored fats for energy.

⇒ Excess acetyl CoA from fatty acid breakdown in the liver forms ketone bodies (acetoacetic acid, β-hydroxybutyric acid, acetone).

⇒ Their level in blood rises and the excess is excreted in urine (ketonuria).

As per NCERT, the presence of ketone bodies in urine (ketonuria) is detected by urine analysis.

∴ The urine will contain abnormal quantities of ketones.

Answer: (4)

AIPMT 2005

Keep practising — Excretory Products and their Elimination

2

Uricotelism is found in

  1. mammals and birds
  2. fish and fresh water protozoans
  3. birds, land reptiles and insects
  4. frogs and toads
AIPMT 2004
3

If Henle's loop were absent from mammalian nephron, which one of the following is to be expected?

  1. There will be no urine formation.
  2. There will be hardly any change in the quality and quantity of urine formed.
  3. The urine will be more concentrated.
  4. The urine will be more dilute.
AIPMT 2003
4

Conversion of ammonia to urea is done by

  1. ornithine cycle
  2. arginine cycle
  3. fumaric cycle
  4. citrulline cycle
AIPMT 2000
5

Concentration of urine depends upon which organ?

  1. Bowman's capsule
  2. Length of Henle's loop
  3. PCT
  4. Network of capillaries arising from glomerulus
AIPMT 2000
6

Which pair is correct?

  1. Sebum = sexual attraction
  2. Saliva = sense of food taste
  3. Sweat = temperature regulation
  4. Humerus = Hind leg
AIPMT 2000

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