Which term describes the stage of bacteria when growth occurs?

• A. Active stage
• B. Inactive or spore forming stage
• C. Toxins
• D. Decontamination

Answer: (A)

Growth happens during the active stage, also known as the vegetative stage, when bacteria are metabolically active and multiplying by feeding on nutrients. This is the phase where they reproduce and increase in number. The inactive or spore-forming stage is a dormant phase when bacteria stop growing and form resistant spores to survive harsh conditions. Toxins are substances some bacteria may produce, not a growth phase. Decontamination is the cleaning and disinfection process to remove pathogens, not a stage of bacterial growth.