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NEET MDS Quiz - Practice Test

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Practice Test

Biochemistry - 3 Questions

1
Biochemistry
The immunoglobulin secreted in Bile is
1. IgG
2. 1gM
3. IgA
4. IgE

📝 Explanation:

The immunoglobulin secreted in Bile is IgA

2
Biochemistry

Which of the following dental tissues is most likely to be effected by Vit-A deficiency
1. enamel
2. dentin
3. cementum
4. pulp

📝 Explanation:

Enamel most likely effected by deficiency of vitamin A

3
Biochemistry
Urea formation take place in liver by:
1. Salvage pathway
2. Krebs cycle
3. Krebs Henseleit cycle
4. none

📝 Explanation:

The synthesis of urea takes place in the liver by the process called ''Ornithine cycle'' or "Urea cycle"
This cycle was discovered by Hans Krebs and Kurt Henseleit in the year 1932.
The Ornithine cycle is completed in 5 steps:
1. Conversion of ammonia into carbamoyl phosphate
2.The transfer of carbamoyl group from carbamoyl phosphate to ornithine
3. Releasing of the formed citrulline into the cytosol
4. Cleavage of argininosuccinate
5. Hydrolysis of Arginine: The final step involves the hydrolysis of Arginine into urea and ornithine

Arginase is the sixth and final enzyme of this cycle.

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