Enzyme Homework

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3, The diagram shows an enzyme molecule and a molecule X that inhibits the enzyme. (a) (i) What type of inhibition would molecule X cause? (1) ………………………………………………………………………………………………………………… (ii) Explain how molecule X would inhibit the enzyme. (2) …………………………………………………………………………………………………………………

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11, (a) Fructose can be made from glucose using the enzyme isomerase. This enzyme can be immobilised. The glucose is allowed to flow over the immobilised enzyme and the fluid that flows out of the reaction vessel contains a high concentration of fructose. (i) What is meant by the term immobilised enzyme. (1) ………………………………………………………………………………………………………………… (ii) Suggest two advantages of using immobilised enzyme in this industrial process.(2) ………………………………………………………………………………………………………………… (b) The graph shows the effect of changing the rate of flow of the glucose solution on the rate of production of fructose. (i) When the rate of flow was increased from 2.5 to 4.5 dm 3 per minute calculate the increase in fructose production per hour. Show your working. (3) …………………………………………………………………………………………………………………

(ii) Explain what is happening at flow rates above 6 dm 3 per minute. (2) …………………………………………………………………………………………………………………