Bacteria that require oxygen to remain alive are called?

Bacteria that require oxygen to survive and grow are classified as aerobic bacteria. These organisms utilize oxygen in their metabolic processes, particularly in cellular respiration, to generate energy. This requirement for oxygen distinguishes aerobic bacteria from other types of bacteria that do not need oxygen.

Anaerobic bacteria, in contrast, thrive in environments devoid of oxygen and may even be inhibited or killed by its presence. Facultative bacteria can grow in both the presence and absence of oxygen, utilizing it when available but switching to anaerobic processes when it is not. Microaerophilic bacteria require low levels of oxygen, not atmospheric levels, thus having specific oxygen requirements that differ from true aerobic bacteria. Therefore, the classification of aerobic accurately reflects the necessity of oxygen for these bacteria's survival and metabolic function.