Concept:Aerobic respiration uses oxygen and releases more energy, while anaerobic respiration occurs without oxygen and releases less energy.
Explanation:In aerobic respiration, glucose breaks down into
CO2 and
H2O with a large amount of energy released.
In anaerobic respiration in yeast, glucose breaks down into ethanol,
CO2, and energy.
In anaerobic respiration in muscles, glucose breaks down into lactic acid and energy.
Thus, water is not produced as a by-product of anaerobic respiration.
Statement A claims water is produced in anaerobic respiration, so it is incorrect.
Statements B, C, and D correctly describe anaerobic respiration: it produces alcohol or lactic acid, needs no oxygen, and releases very little energy.
Answer:Option A is not correct.