Question
(b) (substrate) (ii) A fault in the production resulted in boiling water running over the lactase enzyme. Using your knowledge of enzymes,predict how the milk produced would diff from the expected product. Explain your answer. __ Prediction Enzymes such as lactase are biological catalysts. Explain the role of enzymes in living cells. __ (c) Name the substance of which enzymes are made. __
Answer
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Nigel
Expert · Tutor for 3 years
Answer
Prediction A: The milk produced would be different from the expected product because the lactase enzyme would be denatured by the boiling water and would not function properly. Explanation: Enzymes, including lactase, are proteins that function best at specific temperatures. Boiling water would cause the lactase enzyme to lose its shape, or denature, and stop functioning. This would prevent the lactase from breaking down lactose in the milk, leading to a different product than expected.Role of enzymes in living cells: Enzymes are biological catalysts that speed up chemical reactions in cells without being used up or changed themselves. They lower the activation energy of the reaction, making it easier for the reaction to occur.Substance of which enzymes are made: Enzymes are made of proteins.
Explanation
## Step1: The first part of the question asks us to predict the effect of boiling water on the lactase enzyme. Enzymes are proteins that speed up chemical reactions in cells. They work best at specific temperatures and pH levels. If the temperature is too high, such as in boiling water, the enzyme can denature, or lose its shape, and stop functioning. ## Step2: The second part of the question asks us to explain the role of enzymes in living cells. Enzymes are biological catalysts, which means they speed up chemical reactions in cells without being used up or changed themselves. They do this by lowering the activation energy of the reaction, making it easier for the reaction to occur. ## Step3: The third part of the question asks us to name the substance of which enzymes are made. Enzymes are made of proteins, which are large molecules composed of amino acids.