Questions: Which cell process is commonly associated with breathing? Respiration Nitrification Photosynthesis

The answer is the first one: Respiration.

Explanation for each option:

1. Respiration: This is the correct answer. Respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water. This process is directly associated with breathing, as breathing supplies the oxygen needed for cellular respiration and removes the carbon dioxide produced.

2. Nitrification: This is incorrect. Nitrification is a part of the nitrogen cycle where ammonia is converted into nitrites and then nitrates by bacteria. It is not related to the process of breathing.

3. Photosynthesis: This is incorrect. Photosynthesis is the process by which plants, algae, and some bacteria convert light energy, carbon dioxide, and water into glucose and oxygen. While it involves gases like carbon dioxide and oxygen, it is not directly associated with the breathing process in animals.

Summary: The cell process commonly associated with breathing is respiration.