Topic Details (Notes format)

Proteins

Subject: Chemistry

Book: General Chemistry

Proteins are large biomolecules composed of one or more polypeptide chains of amino acids. Their complex 3D structures (primary, secondary, tertiary, quaternary) determine function—ranging from enzymes and hormones to antibodies and structural components. Protein folding is guided by noncovalent interactions (hydrogen bonds, ionic interactions, van der Waals forces). Misfolded proteins can lead to diseases (e.g., Alzheimer’s).

Practice Questions

What is the chemical formula for phosphoric acid?

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Which element is represented by the symbol 'Fe'?

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Which acid is present in lemon juice?

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Which compound is commonly known as ammonium nitrate?

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What is the chemical formula for sodium carbonate?

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Which element is essential for the formation of hemoglobin?

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What is the chemical formula for sulfuric acid?

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Which element has the atomic number 92?

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Which element is used in thermometers?

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