Carbohydrates, proteins, lipids, nucleic acids, enzymes.
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Q1 · Biomolecules (Class 11 — ~20% weight) · EASY
Which of the following is a reducing sugar?
Q2 · Biomolecules (Class 11 — ~20% weight) · HARD
An enzyme lowers the activation energy of a reaction from 80 kJ/mol to 50 kJ/mol at 300 K. By what approximate factor does the rate of reaction increase? (Use R = 8.314 J/mol·K and assume the pre-exponential factor remains constant)
Q3 · Biomolecules (Class 11 — ~20% weight) · MEDIUM
Which type of protein structure is stabilized primarily by hydrogen bonds between the carbonyl oxygen and amide hydrogen of the polypeptide backbone?