Title: Physioex 9.0 Exercise 8 pre and post quizzes Activity 1 Post by: trin on Jun 24, 2012 Exercise 8: Chemical and Physical Processes of Digestion: Activity 1: Assessing Starch Digestion by Salivary Amylase Lab
Report Pre-lab Quiz Results You scored 100% by answering 6 out of 6 questions correctly. 1. The substrate for amylase is You correctly answered: e. starch and carbohydrate. 2. Which of the following is true of enzymes? You correctly answered: c. Their activity can be affected by temperature and pH. 3. The reagent IKI tests for the presence of You correctly answered: a. starch. 4. Which of the following is not true of controls? You correctly answered: d. A negative result with a positive control is required to validate the test 5. Which of the following is an end product of starch digestion? You correctly answered: e. maltose and glucose 6. Hydrolases are enzymes that break down large molecules into smaller subunits through the addition of _____________. You correctly answered: b. water Post-lab Quiz Results 1. Tubes 3, 7, and 8 reveal that Correct answer: d. amylase activity was highest at pH 7. 2. This activity includes a number of negative controls. Which tube indicates that the amylase solution was not contaminated with maltose? Correct answer: b. tube 4 3. Which tubes indicate that the deionized water did not contain contaminating starch or maltose? Correct answer: c. tubes 4, 5, and 6 4. Explain where and why salivary amylase would be most active. Correct answer: d. Salivary amylase would be most active in the mouth because pH 7 is where its peak activity is. Title: Re: Physioex 9.0 Exercise 8 pre and post quizzes Activity 1 Post by: bio_man on Jun 24, 2012 Excellent, trin :D
Title: Re: Physioex 9.0 Exercise 8 pre and post quizzes Activity 1 Post by: trin on Jun 24, 2012 Like I said, I will slowly get the ones I have posted. We didn't do every exercise in the book, but enough. I know it will be appreciated.
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