5
QuizMultiple Choice

Amino Acids and Proteins

Question 5 • AISD-Biology A CR - (25-26)

Which statement best describes what happens to protein when a steak is cooked?

Answer
A
It denatures and coagulates during cooking.
B
It decreases in size as amino acids are lost.
C
It loses bacteria because they are denatured.
D
It undergoes polymerization to form longer chains.

Explanation

Heat changes the protein’s folded shape, a process called denaturation. The unfolded proteins then bond together and coagulate, which changes the steak’s texture. Cooking does not make the protein lose amino acids or form longer chains through polymerization.

AI-written and checked against the verified answer.

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