ocedure: 1. Prepare 5 test tubes. Place 1 ml of 1% starch and add 10 drops of saliva to each tube. Mix thoroughly. 2. Place the first tube in ice water, the 2nd tube leave at room temperature, the 3rd tube in 40°C , the 4th tube at 60°Cwater bath and the 5th tube boil for 2 minutes.. 3. Leave the 4 tubes in their respective temperatures for 30 minutes. The 4th tube allows to stand for 30 minutes after heating for 2 minutes. 4. Test the contents of each tube with iodine and benedict’s tests.
ocedure: 1. Prepare 5 test tubes. Place 1 ml of 1% starch and add 10 drops of saliva to each tube. Mix thoroughly. 2. Place the first tube in ice water, the 2nd tube leave at room temperature, the 3rd tube in 40°C , the 4th tube at 60°Cwater bath and the 5th tube boil for 2 minutes.. 3. Leave the 4 tubes in their respective temperatures for 30 minutes. The 4th tube allows to stand for 30 minutes after heating for 2 minutes. 4. Test the contents of each tube with iodine and benedict’s tests.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
Procedure:
1. Prepare 5 test tubes. Place 1 ml of 1% starch and add 10 drops of saliva to
each tube. Mix thoroughly.
2. Place the first tube in ice water, the 2nd
tube leave at room temperature, the 3rd
tube in 40°C , the 4th
tube at 60°Cwater bath and the 5th
tube boil for 2
minutes..
3. Leave the 4 tubes in their respective temperatures for 30 minutes. The 4th
tube
allows to stand for 30 minutes after heating for 2 minutes.
4. Test the contents of each tube with iodine and benedict’s tests.
Transcribed Image Text:EFFECT OF TEMPERATURE ON ENZYME ACTIVITY
Results:
Tub
Temperature
Benedict's test
Iodine test
e
1
Ice (0º)
2
Room
Temperature
3
40°C
4
60°C
5
Boil (100°)
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