Protein metabolism

Protein metabolism

University

10 Qs

quiz-placeholder

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Protein metabolism

Protein metabolism

Assessment

Quiz

Biology

University

Hard

Created by

James Connorton

Used 96+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What DOESN'T contribute to the amino acid pool?

Degrading tissue proteins

Making essential amino acids in the body

Proteins from food

Trick question! Everything contributes

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does stomach acid aid protein digestion?

Disrupts ionic bonds so food proteins denature

Hydrolyses peptide bonds to enzymes can "attack" food proteins

Modulates amino acid transporters in the stomach wall

Disrupts ionic bonds to activate enzymes

3.

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 carboxyl group

The whole molecule EXCEPT the amino group

The amino group

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In what form is N transported through blood to the liver?

Ammonium ion

Gluten

An amino acid

Urea

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes an amino acid non-essential?

Not metabolised by the body

Not needed to build proteins but can be burnt for energy

Must be provided by the diet

Can be synthesised by the body

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pyridoxal phosphate can be temporarily converted to pyridoxamine phosphate. What type of reaction is this?

Amination

Deamination

Oxidative deamination

Transamination

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What substrates does the enzyme cysteine transaminase need?

L-cysteine + any amino acid

L-cysteine + L-glutamate

L-cysteine + any α-keto acid

L-cysteine + α-ketoglutarate

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