Temperature and enzymatic activity Grade 9 students posed the following question: "What is the convenient temperature for the activity of an enzyme?" For this reason, they realized the experiment described below: -They put the same quantity of cooked starch in each of the two test tubes A and B. -They added a small quantity of fresh saliva to each of the two tubes. -Then, they placed both tubes for a convenient duration at different temperatures: •Tube A in ice where the temperature is 0°C Tube B in a water bath where the temperature is 37°C. N.B.: Saliva contains an enzyme: amylase. The chemical medium is neutral in both tubes A and B. By using an appropriate technique, these students obtained the results shown in the Quantity of cooked starch (in 6) opposite document. 1- Represent, in the same table, the variation of the quantities of cooked starch in the tubes A and B in function of time. 2- Pick out the posed problem by grade 9 students. 3- Analyze the obtained results. What do you conclude? 100 Tube A 75 50 Tube B Time (in min) 10 15

Temperature and enzymatic activity Grade 9 students posed the following question: "What is the convenient temperature for the activity of an enzyme?" For this reason, they realized the experiment described below: -They put the same quantity of cooked starch in each of the two test tubes A and B. -They added a small quantity of fresh saliva to each of the two tubes. -Then, they placed both tubes for a convenient duration at different temperatures: •Tube A in ice where the temperature is 0°C Tube B in a water bath where the temperature is 37°C. N.B.: Saliva contains an enzyme: amylase. The chemical medium is neutral in both tubes A and B. By using an appropriate technique, these students obtained the results shown in the Quantity of cooked starch (in 6) opposite document. 1- Represent, in the same table, the variation of the quantities of cooked starch in the tubes A and B in function of time. 2- Pick out the posed problem by grade 9 students. 3- Analyze the obtained results. What do you conclude? 100 Tube A 75 50 Tube B Time (in min) 10 15

Biochemistry

9th Edition

ISBN:9781305961135

Author:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Chapter3: Amino Acids And Peptides

Section: Chapter Questions

Problem 13RE: MATHEMATICAL An organic chemist is generally happy with 95% yields. If you synthesized a polypeptide...

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