unknown identification

Question 1

grouping of bacteria

Answer 1

taxonomy

Question 2

Bacteria are classified by their

Answer 2

morphology, growth arrangement , metabolism, serology

Question 3

important reference for bacterial taxonomy, where bacteria is classified due to similiarities in their rRNA

Answer 3

Bergey’s Manual

Question 4

The presence of ____ is very important to the growth of bacteria

Answer 4

oxygen

Question 5

requires oxygen to grow

Answer 5

obligate aerobic bacteria

Question 6

cannot grow in presence of oxygen

Answer 6

obligate anaerobic bacteria

Question 7

grow better if oxygen is present, but do not require oxygen to grow; most bacteria are this

Answer 7

facultative anaerobes

Question 8

require small amount of O2 for growth

Answer 8

microaerophiles

Question 9

do not use 02 as final electron acceptor but tolerate it well

Answer 9

aerotolerant microbes

Question 10

why cant obligate anaerobes tolerate oxygen?

Answer 10

They lack catalase, which leads to the accumulation of hydrogen peroxide

Question 11

Bacteria genera that lack catalase (aerotolerant anaerobes)

Answer 11

Streptococcus, Enterococcus, Leuconostoc, Lactobacillus, CLostridium (only obligate anaerobe of the 5)

Question 12

Purpose of catalase test

Answer 12

identifies bacteria that can produce catalase; important for differentiation gram + bacteria (staphylococcus (produces catalase)) VS (streptococcus (does not produce catalase))