Protein Metabolism Session 5

Protein Metabolism Session 5

University

5 Qs

quiz-placeholder

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Protein Metabolism Session 5

Protein Metabolism Session 5

Assessment

Quiz

Chemistry

University

Hard

Created by

C.E. Quiz

Used 13+ times

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What DOES NOT contribute to amino acid pool ?

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