, the one that is not true is C: "End-products are ethyl alcohol and carbon dioxide."
Anaerobic respiration is a process that occurs in the absence of oxygen and involves the incomplete breakdown of glucose to produce energy. In plants, anaerobic respiration typically occurs in cells that are not receiving enough oxygen, such as those in roots or other parts of the plant that are submerged in water or soil. During anaerobic respiration, the end-products are typically lactic acid or ethanol, not ethyl alcohol and carbon dioxide.
A: Occurs normally throughout the life - This statement is true. Anaerobic respiration can occur at any time in a plant's life, although it is more common in certain situations, such as when the plant is experiencing stress or when oxygen is limited.
B: Incomplete breakdown of glucose takes place - This statement is true. During anaerobic respiration, the breakdown of glucose is incomplete, resulting in the production of smaller molecules such as lactic acid or ethanol rather than the complete breakdown of glucose to carbon dioxide and water.
D: Proceeds in the absence of oxygen - This statement is true. Anaerobic respiration is a type of respiration that occurs in the absence of oxygen. It is a process that plants and some other organisms use to produce energy when oxygen is not available.