Question

which type of process requires oxygen as a reactant?
aerobic
anaerobic
phagocytotic
perspiration

Explanation:

• Aerobic processes require oxygen as a reactant. In aerobic respiration, for example, oxygen is used to break down glucose to produce energy.
• Anaerobic processes occur without oxygen. Phagocytotic is a process related to cell - engulfing (like in immune cells), and perspiration is related to sweating (a physical process for temperature regulation and waste removal) and neither of these two require oxygen as a reactant in the sense of a biochemical reaction like in aerobic processes.

Answer:

Aerobic