Question detail
Which option best explains lactic acid within Respiration?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Respiration
Question
- A. Incomplete oxidation of glucose causes lactic acid build-up and creates an oxygen debt.
- B. Students often confuse lactic acid build-up with the overall process of aerobic respiration, thinking it occurs during normal aerobic conditions.
- C. It is not correct that incomplete oxidation of glucose causes lactic acid build-up and creates an oxygen debt.
- D. The idea only requires memorising the topic title for Respiration.
Answer
In this question, Incomplete oxidation of glucose causes lactic acid build-up and creates an oxygen debt. is correct It stays aligned to the exact wording and meaning of the objective.
Explanation
In AQA-style practice, the correct answer must match the objective closely and use the science rather than filler wording. That is why Incomplete oxidation of glucose causes lactic acid build-up and creates an oxygen debt. is the best option here. Linking the idea to a byproduct of anaerobic respiration in muscles, formed when glucose is incompletely oxidized keeps the explanation specific.
Common mistake
Lactic Acid Misunderstanding
Students often confuse lactic acid build-up with the overall process of aerobic respiration, thinking it occurs during normal aerobic conditions.
Clarify that lactic acid build-up specifically occurs during anaerobic respiration when there is insufficient oxygen, leading to an oxygen debt.
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