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
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Digestion: Activity 1: Assessing Starch Digestion by Salivary Amylase Lab Report Pre-lab Quiz Results You scored 83% by answering 5 out of 6 questions correctly. 1. The substrate for amylase is Your answer : b. starch. Correct answer: 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
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Activity 1: Assessing Starch Digestion by Salivary Amylase Lab Report Pre-lab Quiz Results You scored 0% by answering 0 out of 6 questions correctly. 1. The substrate for amylase is Correct answer: e. starch and carbohydrate. You have not answered this question. 2. Which of the following is true of enzymes? Correct answer: c. Their activity can be affected by temperature and pH. You have not answered this question. 3. The reagent IKI tests for the presence of Correct answer: a. starch. You have not answered
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enzyme (lysozyme) destroys bacteria second enzyme known as salivary amylase‚ begins the chemical digestion of starchy foods. produced by three pairs of salivary glands parotid ‚ submandibular‚ and sublingual glands. PAROTID GLANDS largest salivary glands. located in front of and slightly below each ear‚ between the skin of the cheek and the masseter muscle. secretes a clear‚ watery fluid that is rich in salivary amylase. SUBMANDIBULAR GLANDS located along the inner surface of the jaw in
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Physical Processes of Digestion: Activity 1: Assessing Starch Digestion by Salivary Amylase Lab Report Pre-lab Quiz Results You scored 16% by answering 1 out of 6 questions correctly. 1. The substrate for amylase is Your answer : a. maltose. Correct answer: e. starch and carbohydrate. 2. Which of the following is true of enzymes? Your answer : b. They are used up in the reaction. Correct answer: c. Their activity can be affected by temperature and pH. 3. The reagent IKI tests for the presence of Your
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ENZYME LAB Introduction- Enzymes are proteins that speed up the rate of reactions in living things. In this lab‚ we will perform four experiments exploring the way enzymes work. PART A: pH SPECIFICITY Every enzyme has a specific pH at which it works best. In this section‚ you will determine which pH is best for the enzyme‚ catalase. Living tissues produce the enzyme catalase‚ which is able to break down hydrogen peroxide into oxygen gas and water. The reaction is shown below: H2O2
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digestive system breaks down substrates such as fats‚ proteins and carbohydrates. Activity 1: Assessing Starch Digestion by Salivary Amylase Data: Chart 1 – Salivary Amylase Digestion of Starch Tube # 1 2 3 4 Additives Amylase‚ Starch Amylase‚ Starch Amylase‚ DI Water DI Water‚ Starch pH 7.0 buffer pH 7.0 buffer pH 7.0 buffer pH 7.0 buffer Incubation Cond. Boil‚ Inc. 37 deg.C 37 degrees C 37 degrees C
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of the amylase Dependent variable: Enzyme activity which is measured by the time for disappearance of starch Controlled variables: Volume of amylase; volume of starch solution; concentration of amylase; concentration of starch solution Prediction of results i) At low temperature‚ the rate of amylase activity is very low. ii) At optimum (=best) temperature‚ the rate of amylase activity is the highest. iii) Increase the temperature below the optimum temperature‚ the rate of amylase activity
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enzyme inhibition. Deglutition (p. 115) – The act or process of swallowing. Activity 1: Assessing Starch Digestion by Salivary Amylase Data: Chart 1 – Salivary Amylase Digestion of Starch Tube # 1 2 3 4 Additives Amylase‚ Starch Amylase‚ Starch Amylase‚ DI Water DI Water‚ Starch pH 7.0 buffer pH 7.0 buffer pH 7.0 buffer pH 7.0 buffer Incubation Cond. Boil‚ Inc. 37 deg.C 37 degrees C 37 degrees C 37 degrees C
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regulation of energy‚ there are millions of enzymes and hundreds of enzymes have been identified in the human body as well. All living system possess enzymes as vital components of the body‚ enzymes are found in all organisms. Everyone has a natural pH balance in the body. Enzymes are complex proteins which speed up chemical reactions if this did not happen it would occur to slowly for us to survive. They are involved in breaking down large molecules in to smaller ones or they can build up smaller
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