Identify those test indicators and organic category that would match: toast and butter

A. They must be excreted from the cell.

Explanation:

Respiration is a process in which energy is released due to the breakdown of glucose molecules with the addition of oxygen forming carbondioxode, water and energy in the form of ATP. This energy is used by the cell in different processes and activities. Water and carbondioxide is a waste product which is removed from the cell during breathing of organisms.