Actinomyces Spp

question 14

Multiple Choice

Actinomyces spp., Bifidobacterium spp., and Clostridium spp.can be described as:

• A) aerotolerant organisms that can grow in the presence of either reduced or atmospheric oxygen but grow best under microaerobic conditions.
• B) strictly anaerobic organisms that cannot grow in the presence of either reduced or atmospheric oxygen but grow only under anaerobic conditions.
• C) microaerophilic organisms that can grow in the presence of either reduced or atmospheric oxygen but grow best under anaerobic conditions.
• D) facultatively anaerobic organisms that grow in the presence or absence of atmospheric oxygen.