CMLA Chemistry Basics 3

Question 1

Which law states that the pressure of a gas is inversely proportional to its volume at constant temperature?

Accepted Answer

Boyle's Law

Answer

Boyle's Law states that P × V = constant at a fixed temperature, meaning pressure and volume are inversely related.

Question 2

An enzyme that catalyzes the hydrolysis of proteins is classified as a:

Accepted Answer

Protease

Answer

Proteases catalyze the hydrolysis of peptide bonds in proteins, breaking them into smaller peptides or amino acids.

Question 3

Which functional group is characteristic of an alcohol?

Accepted Answer

–OH

Answer

Alcohols are organic compounds characterized by the presence of a hydroxyl (–OH) group attached to a carbon atom.

Question 4

In clinical chemistry, the term 'specificity' of a test refers to its ability to:

Accepted Answer

Correctly identify true negatives

Answer

Specificity is the ability of a test to correctly identify individuals who do not have the condition, i.e., true negatives.

Question 5

What is the Henderson-Hasselbalch equation primarily used for in the laboratory?

Accepted Answer

Determining the pH of a buffer solution

Answer

The Henderson-Hasselbalch equation (pH = pKa + log([A⁻]/[HA])) relates the pH of a buffer to the ratio of its conjugate base to weak acid.

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