ENZYME ACTIVITY

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter25: Nitrogen Acquisition And Amino Acid Metabolism
Section: Chapter Questions
Problem 3P: Regulation of Glutamine Synthetase by Covalent Modification Suppose at certain specific metabolite...
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Fozyme Action: An Investigation of Lactase Activity
137
PART F EFFECT OF pH ON ENZYME ACTIVITY
Activity of Lactaid at Several pls
Observation with Tes Tape"
Glucose present?
Lactose
90 change
More Grean tello
Green Hellow
NO change
Green
NO
pH 7
Yes, 100 mgloL
pH 2
Yes
7100 mglaL
pH 10
NO
Glucose
tes 300 mglaL
RART G. EFFECT OF AN INHIBITOR ON ENZYME ACTIVITY
Inhibitor Effects
Observation with Tes Tape
Glucose present?
Light Green
Teal
Yellow IGreen
Dark Brown
Lactose
Yes
Lactaid"
NO
Ethanol
Yes
Yes
Glucose
1. What is the optimum pH of the lactose-conversion reaction, as shown by your data?
2 Did ethanol act as an efficient inhibitor of the lactose conversion to glucose and galactose?
3. Summarize your findings about the concentration, temperature, and pH sensititivity of lactase.
Transcribed Image Text:Fozyme Action: An Investigation of Lactase Activity 137 PART F EFFECT OF pH ON ENZYME ACTIVITY Activity of Lactaid at Several pls Observation with Tes Tape" Glucose present? Lactose 90 change More Grean tello Green Hellow NO change Green NO pH 7 Yes, 100 mgloL pH 2 Yes 7100 mglaL pH 10 NO Glucose tes 300 mglaL RART G. EFFECT OF AN INHIBITOR ON ENZYME ACTIVITY Inhibitor Effects Observation with Tes Tape Glucose present? Light Green Teal Yellow IGreen Dark Brown Lactose Yes Lactaid" NO Ethanol Yes Yes Glucose 1. What is the optimum pH of the lactose-conversion reaction, as shown by your data? 2 Did ethanol act as an efficient inhibitor of the lactose conversion to glucose and galactose? 3. Summarize your findings about the concentration, temperature, and pH sensititivity of lactase.
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