Salivary amylase breaks down complex carbohydrates known as starches in the human digestive system Figure 1 demonstrates how salivary amylase performs in various conditions.
Figure 2
Experiment 1- procedure
•Fill the test tube with 5mL of saliva and starch
•Add milk to the test tube until the pH reaches 10
• Wait 5 min
•use iodine to test for starch
Experiment 2
•Fill the test tube with 5mL of saliva and starch
•Add vinegar until the pH reaches 3.0
• Wait 5 min
•use iodine to test for starch
Experiment 3
•Fill the test tube with 5mL of saliva and starch
•Heat test tube in hot water bath until the temperature reaches 37°C
•Wait 5 min
•use iodine to test for starch
Experiment 4
•Fill the test tube with 5mL of saliva and starch
• Heat test tube in hot water bath until the temperature reaches 100°C
• Wait 5 minutes
• Use iodine to test for starch
Which of the experiments would allow salivary amylase to produce the most product?
Experiment 1
Experiment 2
Experiment 3
Experiment 4
Answers: 2
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