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The process of denaturation will cause proteins to:

  1. Grow in size

  2. Increase in function

  3. Decrease in function

  4. Break down in size

The correct answer is: Decrease in function

Denaturation is a process that involves altering the structure of a protein, which can be caused by changes in temperature, pH levels, or exposure to substances such as acids or bases. When a protein is denatured, it loses its functional shape and may no longer be able to perform its specific job effectively. Therefore, the process of denaturation would lead to a decrease in function of the protein, not an increase or growth in size. Option A is incorrect because denaturation does not cause the protein to physically grow in size. Option B is incorrect because denaturation actually impairs the function of the protein. Option D is incorrect because denaturation does not involve breaking down the protein into smaller pieces.