Amino Acids (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes

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Amino Acids
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What two functional groups do amino acids contain?

Amino (NH2)(−NH2) & carboxylic acid (COOH)(−COOH)

What is the formula of the amino group in amino acids?

(NH2)(−NH2)

What is the formula of the carboxylic acid group?

(COOH)(−COOH)

What type of process links amino acids together?

Condensation polymerisation

What are the long chains formed when amino acids link together called?

Polypeptides

What are the bonds connecting amino acids in a polypeptide called?

Peptide bonds

What do polypeptide chains fold into?

Proteins

What molecule is produced as a by-product in condensation polymerisation?

Water

What is the nature of the amino group (NH2)(−NH2)?

Basic

What is the nature of the carboxylic acid group (COOH)(−COOH)?

Acidic

Why are proteins important?

Essential for all living organisms

Can polypeptides contain different amino acids?

Yes, in various patterns

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