Question

What is the role of cellular respiration in organisms?

Responses

to provide energy for photosynthesis
to provide energy for photosynthesis

to provide energy for cell activity
to provide energy for cell activity

to provide energy for breaking apart fuel molecules
to provide energy for breaking apart fuel molecules

to provide energy for making oxygen

Answer 1

The primary role of cellular respiration in organisms is **to provide energy for cell activity**. This process converts biochemical energy from nutrients into adenosine triphosphate (ATP), which cells use to perform various functions necessary for life. While cellular respiration does involve breaking down fuel molecules, the ultimate purpose is to generate the energy needed for cellular processes, not directly for photosynthesis or making oxygen.