Amylase is an enzyme found in saliva that is capable of breaking down starch into glucose molecules for metabolism. Humans have amylase in their saliva, and it is considered one of the first metabolic processes we carry out in digestion. When we consume some starchy foods, they often begin to taste sweet with chewing as the glucose sugars begin to be released by the amylase reaction with starch. In the following image, we tested a students saliva for the presence of amylase.   Step 1: A starch solution was added to each of the three test tubes. Step 2: From left to right in the picture

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Amylase is an enzyme found in saliva that is capable of breaking down starch into glucose molecules for metabolism. Humans have amylase in their saliva, and it is considered one of the first metabolic processes we carry out in digestion. When we consume some starchy foods, they often begin to taste sweet with chewing as the glucose sugars begin to be released by the amylase reaction with starch. In the following image, we tested a students saliva for the presence of amylase.

 

Step 1: A starch solution was added to each of the three test tubes. Step 2: From left to right in the picture

 

 

The image depicts three test tubes held in a person's hand, each containing a different liquid. These are labeled as follows:

1. **Spit**: This test tube contains a liquid labeled as "spit." It appears to have a light amber or orange hue.

2. **Commercial Amylase**: This test tube contains a liquid labeled as "commercial amylase," also showcasing a similar amber color to the spit sample.

3. **Water**: The test tube labeled "water" contains a darker liquid, appearing almost black in color.

This setup likely illustrates an experiment involving the enzymatic activity of amylase, which is present in both saliva (spit) and commercially available preparations. The color differences might be indicative of reactions or lack thereof when these substances interact with a substrate possibly used in the experiment. The dark color in the water tube can suggest a control variable where no enzymatic reaction has occurred.
Transcribed Image Text:The image depicts three test tubes held in a person's hand, each containing a different liquid. These are labeled as follows: 1. **Spit**: This test tube contains a liquid labeled as "spit." It appears to have a light amber or orange hue. 2. **Commercial Amylase**: This test tube contains a liquid labeled as "commercial amylase," also showcasing a similar amber color to the spit sample. 3. **Water**: The test tube labeled "water" contains a darker liquid, appearing almost black in color. This setup likely illustrates an experiment involving the enzymatic activity of amylase, which is present in both saliva (spit) and commercially available preparations. The color differences might be indicative of reactions or lack thereof when these substances interact with a substrate possibly used in the experiment. The dark color in the water tube can suggest a control variable where no enzymatic reaction has occurred.
In the experiment described, a student's saliva was tested for the presence of amylase.

**Step 1:** A starch solution was added to each of the three test tubes.

**Step 2:** From left to right in the picture:
- Saliva added
- Commercial amylase solution added
- Water added

All three tubes were incubated at 37 degrees Celsius for 15 minutes.

**Step 3:** Five (5) drops of iodine were added to each tube. Iodine will turn a dark purple color in the presence of a starch solution.

**Instructions:** Using the results shown and the experiment description, explain the results of each tube.
Transcribed Image Text:In the experiment described, a student's saliva was tested for the presence of amylase. **Step 1:** A starch solution was added to each of the three test tubes. **Step 2:** From left to right in the picture: - Saliva added - Commercial amylase solution added - Water added All three tubes were incubated at 37 degrees Celsius for 15 minutes. **Step 3:** Five (5) drops of iodine were added to each tube. Iodine will turn a dark purple color in the presence of a starch solution. **Instructions:** Using the results shown and the experiment description, explain the results of each tube.
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