Citric Acid trivia

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Citric Acid Mini Quiz

Test your knowledge with these top questions!

Question 1

Food makers add ascorbic acid to prevent scurvy, but they add citric acid to achieve what goal?

Found naturally in citrus fruits, citric acid lowers the pH of foods to create a tart, sour taste commonly used in soft drinks and sour candies.

Question 2

Human cells use the citric acid cycle to perform what essential biological function?

Also known as the Krebs cycle, this process occurs in the mitochondria to oxidize nutrients and produce ATP, the primary energy currency of the cell.

Question 3

Home cooks squeeze citric acid-rich lemon juice over sliced apples to prevent what natural process?

The low pH of the citric acid denatures polyphenol oxidase, the specific enzyme responsible for turning the fruit flesh brown when exposed to oxygen.

Question 4

Household cleaners use citric acid to remove hard water stains through what chemical action?

Citric acid acts as a chelating agent, meaning its molecules grasp and bind to metal ions like calcium and magnesium so they can be easily washed away.