1. Biological Molecules: Definitions (AQA A-Level Biology): Quizzes

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1. Biological Molecules: Definitions
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What three components make up an ATP molecule?

Ribose, adenine, 3 phosphate groups

Which functional groups are present in all amino acids?

Amino group (NH2\text{NH}_2) & carboxyl (COOH\text{COOH})

What does Benedict's test detect in a sample?

Reducing sugars

What colour indicates a positive Biuret test for proteins?

Purple

What molecule is removed during a condensation reaction?

Water

What is the function of DNA helicase during replication?

Unwinds & separates DNA strands

Where is glycogen primarily stored as an energy reserve?

Animal cells

What defines quaternary protein structure?

Multiple polypeptide chain arrangement

Which two monosaccharides form maltose?

Two glucose molecules

What is added to molecules during hydrolysis?

Water

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