What DOES NOT contribute to amino acid pool ?
Protein Metabolism Session 5

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Chemistry
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University
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Hard

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Degrading tissue proteins
Making essential amino acids in the body
Proteins from food
Everything contributes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of an amino acid provides a source of energy?
The whole molecule
The whole molecule EXCEPT the Hydroxyl group
The whole molecule EXCEPT the amino group
The amino group
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phenylalanine is convetred in Tyrosine by enzyme Phenylalanine Hydrolxylase by the process called
Hydroxylation
Methylation
Oxidation
Carboxylation
Answer explanation
The first step in the metabolism of phenylanine is its oxidation to tyrosine by the enzyme Ph H. This enzyme is defective in most cases of PKU. As a result of the deficiency, phenylalanine accumulates in tissues and blood and cause damge.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The total protein turnover in a healthy adult is:-
100-200 g/day
200-300 g/day
300-400 g/day
400-500 g/day
Answer explanation
Of this, 100-150 g are muscle proteins and digestive enzymes. Normally the rate of protein breakdown equals the rate of resynthesis.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes an amino acid non essential ?
Not metabolized by the body
Not needed to build proteins but can be burnt for energy
Must be provided by the diet
Can be synthesized by the body
Answer explanation
Total amino acids = 20 ,
Essential amino acids cannot be made by the body. As a result, they must come from food. There are 9 in number and rest are non essential amino acids i.e 11
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