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GENERAL BIOLOGY LAB 1 (BSC1010L)

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Important Notes:<br />

• Each group will test the optimal temperature for one amylase type and then<br />

will repeat the experiment using the amylase from the other source. Your<br />

instructor will assign the enzyme that your group should start with.<br />

• At the end of the experiment, your group should have 2 data sets, one for<br />

each type of amylase (fungal and human).<br />

• To determine the optimal temperatures for both enzymes, you will need to<br />

generate a class data set by combining your group’s results with the data<br />

collected by the other groups in your class. These data sets<br />

Procedure:<br />

I. Experimental Setup:<br />

1. Place a napkin/paper under the spot plates (Figure 5) and across the top<br />

write Temperature (0°, 40°, 60°, 95° Celsius) and on the side write Time (0, 2,<br />

4, 6, 8, 10 min).<br />

Figure 5. Spot plate setup<br />

2. Obtain 4 test tubes and label each with a different temperature<br />

(0°, 40°, 60°, 95° Celsius), enzyme source (H – human and F –<br />

fungal) and your group number.<br />

0° - H – Grp1<br />

3. Obtain another 4 test tubes and label these with a different<br />

temperature, enzyme source (H or F), your group number and<br />

the letter S (for starch solution).<br />

4. Add 5mL of 1.5% starch solution into each of the test tubes<br />

labeled S.<br />

II. Effect of Temperature on Amylase Activity<br />

5. Add 1mL of amylase into each of the test tubes that do not<br />

contain starch.<br />

7

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