Which of the following chemical activity is involved in the conversion of pyruvate into acetaldehyde during anaerobic respiration?
Correct answer: B. Decarboxylation
- A. Reduction
- B. Decarboxylation
- C. Oxidation
- D. Phosphorylation
Explanation
During anaerobic respiration, specifically in a process called alcoholic fermentation, decarboxylation is involved in the conversion of pyruvate into acetaldehyde. This process occurs in certain microorganisms, such as yeast, under anaerobic conditions.Decarboxylation: Pyruvate loses a carbon dioxide (CO2) molecule, resulting in the formation of acetaldehyde. This step is catalyzed by the enzyme pyruvate decarboxylase. Pyruvate→Acetaldehyde+CO2
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
Practise Bioenergetics
1,378 free Bioenergetics MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Bioenergetics questions
The quantitative study of energy relationship in a biological system is called?
Location of photosynthetic pigments in purple sulfur bacteria:
Van Neil's hypothesis about the production of oxygen during photosynthesis was based on the study and investigations of:
In glycolysis, the conversion of Glucose-6-phosphate to fructose-6-phosphate involves:
Which of the following releases 7.3 kcal energy when terminal phosphate is lost?
To reduce one molecule of O2 _ _ _ electron(s) must be passed through the electron transport chain and _ _ _ molecule(s) of NADH ls(are) oxidized.