18 Questions
What is the primary difference between aerobic fermentation and anaerobic fermentation?
Aerobic fermentation requires the presence of oxygen, while anaerobic fermentation occurs in the absence of oxygen.
Which term is commonly used to describe the phenomenon of aerobic fermentation in yeast?
Crabtree effect
Why does yeast require oxygen for certain processes essential for reproduction?
To establish a strong yeast colony.
In which type of fermentation is oxygen not available in the surrounding environment?
Anaerobic fermentation
Why do some types of fermentation processes require oxygen initially?
To establish a strong yeast colony.
What is the incorrect statement about aerobic fermentation based on the text?
"Aerobic" means "in the absence of oxygen."
What is the byproduct produced during fermentation process under anaerobic conditions?
Carbon dioxide (CO2)
Which type of fermentation results in the production of ethanol and carbon dioxide?
Heterolactic fermentation
Which type of lactic acid fermentation does not release gas as a byproduct?
Homolactic acid fermentation
Which organisms are responsible for transforming sugars into lactic acid during lactic acid fermentations?
Leuconostoc, Streptococcus, Lactobacillus bacteria
What is the most important compound resulting from lactic acid fermentation?
Lactic acid
Which of the following is an example of an ancient lactic acid fermented food?
Sour milk
Which process uses oxygen to produce ATP?
Oxidative phosphorylation
What is the primary function of anaerobic fermentation?
To regenerate NAD+
What is the key difference between anaerobic and aerobic respiration?
Requirement of oxygen
In anaerobic fermentation, what process restores NAD+ for glycolysis?
Conversion of pyruvate to ethanol
What type of phosphorylation is associated with substrate-level phosphorylation?
Substrate-level phosphorylation
Which enzyme catalyzes the conversion of pyruvate to acetaldehyde in ethanol fermentation?
Pyruvate decarboxylase
Explore the metabolic process of aerobic fermentation where cells metabolize sugars in the presence of oxygen. Learn about how this process occurs through the repression of normal respiratory metabolism, known as the crabtree effect in yeast.
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