because it stays in liquid form inside the dough, while the gas needed for lifting the bread is carbon dioxide.
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15
Write the word equation for yeast respiration.
Glucose --> ATP + CO2 + Ethanol
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15
Link respiration rate to gas volume in bread dough.
higher yeast respiration equals faster carbon dioxide production, which leads to a quicker increase in gas volume (dough expansion).
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15
What does CO₂ do inside the dough?
Makes it rise and creating the light, airy texture
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15
What gas makes bread dough rise?
CO2
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15
Explain why very high temperatures stop gas production.
because it kills or disables they east that make the gas.
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boom
Lose 50 points!
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star
Double points!
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fairy
Take points!
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baam
Lose 15 points!
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15
Explain why more CO₂ is produced at the optimum temperature.
More is produced at an optimum temperature primarily because that temperature provides the perfect environment for the enzymes involved in metabolic processes
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15
Does yeast respire with or without oxygen in dough?
Without
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15
What does “anaerobic” mean?
No oxygen needed
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15
Why might dough not rise in a hot car?
Yeast is a living organism, and when exposed to temperatures that are too high, it stops working or dies, causing the bread to fail.
