Question

Model 2 -Amylase Re UI RECLUTT Rate of reaction 0 20 80 100 40 60 Temperature, C S trate concentration always in exce) Sub s e concentration Enzyme concentration constant) 12. Amylase is an enzyme that catalyzes the digestion of carbohydrates. The graphs in Model 2 pro- vide data on several factors that affect the function of amylase in the body 4. The relationship of which two variables is illustrated in graph A of Model 2 The relationship of which two variables is illustrated in graph Bor Model 2! The relationship of which two variables is illustrated in graph Cor Model 2? 13. Refer to Model 2 . What is the optimum temperature for amylase? & What is the biological significance of the temperature at which the amylase-catalyzed reaction is fastest? 14. Predict what causes a decrease in enzyme activity at temperatures above 37 °C. 15. A young child runs a fever of 40 C for 24 hours. Explain what effect this may have on his digestion 10. Consider the data in graph B of Model 2. 4 Describe the relationship between enzyme concentration and reaction rate.

Answer 1

Model 2 -Amylase Kale Di Real Rare of reacties Rate of reaction 20 80 100 40 60 Temperature, C Enzyme concentration Shatrate concentration always in ce Rate of reaction Substrate concentration (Enzyme concentration constant) 12. Amylase is an enzyme that catalyzes the digestion of carbohydrates. The graphs in Model 2 pro- vide data on several factors that affect the function of amylase in the body 4. The relationship of which two variables is illustrated in graph A of Model 2 temperature vs rate of reaction b. The relationship of which two variables is illustrated in graph Bor Model 2 enzyme concentration vs rate of reaction The relationship of which wo variables is illustrated in graph Cot Model 22 substrate concentration vs rate of reaction 13. Refer to Model 2. 4. What is the optimum temperature for amylase! 37 to 38°C 6. What is the biological significance of the temperature at which the amylase-catalyzed reaction it is the temperature of is fastest? human body 14. Predia what causes a decrease in enzyme activity at temperatures above 37 °C. enzyme will be unfolded, 3D structure will be lost and hence catalytic activity will 15. also be lost ild runs a fever of 40 C for 24 hou digestion will be slowed down digestion because amylase will not be 10. Consider the data in graph B of Model 2. able to work efficiently at 40°C 4. Describe the relationship between enzyme concentration and reaction rate his

As the concentration of enzyme increases, the rate of reaction also increases but up to a certain limit. This is because the number of substrate molecules get limited after some time. As we increase the enzyme concentration, more enzyme molecules bind to all the unoccupied substrate molecules. But one all the substance molecules are bound, there are no more substrate molecules to be occupied with increasing enzyme molecules. Hence it reaches a plateau.

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