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THINK Answer this question individually 1. Why does the fermentation of sugars, such as glucose and fructose, depend upon the presence of P PAIR Answert Answer the following questions with a partner: 2. Which glycolytic reactions require ? 3. Several glycolytic intermediates contain phosphate. Where did these groups come from during the reactions? SHAREAs a class As a class, discuss the following questions: 4. How much P, is required to generate one CD, 5. Is CO, generation the most reliable way to measure ethanol fermentation? Why or why not?

THINK Answer this question individually 1. Why does the fermentation of sugars, such as glucose and fructose, depend upon the presence of P PAIR Answert Answer the following questions with a partner: 2. Which glycolytic reactions require ? 3. Several glycolytic intermediates contain phosphate. Where did these groups come from during the reactions? SHAREAs a class As a class, discuss the following questions: 4. How much P, is required to generate one CD, 5. Is CO, generation the most reliable way to measure ethanol fermentation? Why or why not?

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Lactate + Lactate dehydrogenase NAD+ NADH + H NAD+ NADH + H Pyruvate dehydrogenase Acetyl-CoA synthetase AMP + P*P ATP + CoA NADH + H -COA Glucose NAD+ CO₂ Pyruvate COA Glycolysis Phospho- transacetylase Acetyl-CoA Pyruvate formate lyase Formate Acetate kinase P₁ COA Acetyl-phosphate ADP ATP NADH + H Acetate Aldehyde dehydrogenase NAD* Acetaldehyde NADH + H COA NAD+ Alcohol dehydrogenase Ethanol ADHE
Transcribed Image Text:Lactate + Lactate dehydrogenase NAD+ NADH + H NAD+ NADH + H Pyruvate dehydrogenase Acetyl-CoA synthetase AMP + P*P ATP + CoA NADH + H -COA Glucose NAD+ CO₂ Pyruvate COA Glycolysis Phospho- transacetylase Acetyl-CoA Pyruvate formate lyase Formate Acetate kinase P₁ COA Acetyl-phosphate ADP ATP NADH + H Acetate Aldehyde dehydrogenase NAD* Acetaldehyde NADH + H COA NAD+ Alcohol dehydrogenase Ethanol ADHE
10_UG_26563_ch09_167-184.indd 175 Press esc to exit full screen Yeast Fermentation The unicellular fungus Saccharomyces cerevisiae is used in the food industry to ferment sugars. The rate of fermentation is measured by CO₂ production. The addition of inorganic phosphate increases this rate. THINK Answer this question individually: 1. Why does the fermentation of sugars, such as glucose and fructose, depend upon the presence of P? PAIR Answer the following questions with a partner: 2. Which glycolytic reactions require P? 3. Several glycolytic intermediates contain phosphate. Where did these groups come from during the reactions? SHARE 4. How much P, is required to generate one CO₂? As a class, discuss the following questions: 5. Is CO₂ generation the most reliable way to measure ethanol fermentation? Why or why not? HANDOUT 175 23/03/17 2:02 pm Page 1 of 4 ...... ZOOM + K
Transcribed Image Text:10_UG_26563_ch09_167-184.indd 175 Press esc to exit full screen Yeast Fermentation The unicellular fungus Saccharomyces cerevisiae is used in the food industry to ferment sugars. The rate of fermentation is measured by CO₂ production. The addition of inorganic phosphate increases this rate. THINK Answer this question individually: 1. Why does the fermentation of sugars, such as glucose and fructose, depend upon the presence of P? PAIR Answer the following questions with a partner: 2. Which glycolytic reactions require P? 3. Several glycolytic intermediates contain phosphate. Where did these groups come from during the reactions? SHARE 4. How much P, is required to generate one CO₂? As a class, discuss the following questions: 5. Is CO₂ generation the most reliable way to measure ethanol fermentation? Why or why not? HANDOUT 175 23/03/17 2:02 pm Page 1 of 4 ...... ZOOM + K
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