Lecture 6 Oxygen Flashcards
1
Q
What is an Obligate Aerobe?
A
Requires Oxygen to grow
2
Q
What is a facultative (an)aerobe?
A
They can grow in the absence of oxygen but grow better within the presence of oxygen
3
Q
What is an obligate anaerobe?
A
They do not use oxygen and are harmed by it
4
Q
What is an Aerotolerant?
A
They are able to grow in both the presence and absence of oxygen but do not use oxygen
5
Q
What are Microaerophiles?
A
They optimally grow at O2 <0.2 atmosphere
6
Q
What are the 4 toxic forms of oxygen?
A
1) Singlet Oxygen O2
2) Superoxide O2-
3) Peroxide O2 ^2-
4) Hydroxyl Free Radical OH+
