Bacterial Growth And Physiology

Question 1

Strict or obligate aerobes

Answer 1

Pseudomonas aeruginosa

Question 2

Strict or obligate anaerobes

Answer 2

Bacteroides fragilis

Question 3

Facultative anaerobe

Answer 3

Staphylococci and e. Coli

Question 4

Micro aerophilic

Answer 4

Campylobacter and helicobacter

Question 5

Aerotolerant anaerobes

Answer 5

Clostridium perfringens (superoxide dismutase)

Question 6

superoxide and hydrogen peroxide are formed which are highly toxic, to cope this aerobic organisms have developed two enzymes

Answer 6

superoxide dismutase and catalase

Question 7

the final electron acceptor is

Answer 7

Oxygen

Question 8

capnophillic bacteria ( requires high concentration of carbon dioxide for growth)

Answer 8

neisseria sp and brucella abortus

Question 9

Psychrophiles ( capable of growth at refrigeration temperature)

Answer 9

Flavobacterium

Question 10

Thermophiles ( heat loving)

Answer 10

Bacillus stearothermophillus

Question 10

Thermophiles ( heat loving)

Answer 10

Bacillus stearothermophillus

Question 11

Alkaline ph 8-9

Answer 11

Vibrio cholerae

Question 12

acidic ph 4 or less

Answer 12

Lactobacilli