What term describes an inactive, dormant form of bacteria that enables survival under adverse conditions?

What term describes an inactive, dormant form of bacteria that enables survival under adverse conditions?

• A. Spores
• B. Pili
• C. Biofilms
• D. Capsules

Answer: (A)

Bacteria escape harsh conditions by forming spores, a dormant, metabolically inactive state that is highly resistant to heat, desiccation, chemicals, and radiation. This spore, often an endospore, is produced when nutrients run low and protects the organism’s genetic material until conditions improve. When favorable conditions return, the spore germinates back into an active, growing cell. Pili are hair-like structures used for attachment and genetic exchange, not dormancy. Biofilms are communities of microbes attached to surfaces within a protective matrix, not a dormant form. Capsules are protective outer layers that aid in evading defenses or sticking to surfaces, but they do not render the cell dormant.

Bacteria escape harsh conditions by forming spores, a dormant, metabolically inactive state that is highly resistant to heat, desiccation, chemicals, and radiation. This spore, often an endospore, is produced when nutrients run low and protects the organism’s genetic material until conditions improve. When favorable conditions return, the spore germinates back into an active, growing cell.

Pili are hair-like structures used for attachment and genetic exchange, not dormancy. Biofilms are communities of microbes attached to surfaces within a protective matrix, not a dormant form. Capsules are protective outer layers that aid in evading defenses or sticking to surfaces, but they do not render the cell dormant.