Chapter 26 Quiz: Bacteria & Archaea

A set of flashcards covering key concepts regarding bacteria and archaea, including their structure, functions, and roles in the ecosystem.

Peptidoglycan

A compound found in bacterial cell walls that provides structural support.

Capsule

A protective layer in bacteria that offers protection and helps evade the immune system.

Conjugation

The process by which bacteria exchange genetic material using a pilus.

Phototroph

An organism that uses light to make energy.

Cyanobacteria

Photosynthetic bacteria that played a crucial role in oxygen production and nitrogen fixation in Earth's history.

True or False: Archaea have peptidoglycan in their cell walls.

False. Archaea do not have peptidoglycan in their cell walls.

True or False: Gram-negative bacteria have a thick peptidoglycan layer.

False. Gram-negative bacteria have a thin peptidoglycan layer.

True or False: Antibiotics are effective against viruses.

False. Antibiotics target bacteria, not viruses.

Bioremediation

A process that uses microorganisms to remove pollutants from the environment.

Extremophile

An organism that thrives in extreme environments, such as extreme heat, acidity, or salinity.