Bacs be requiring stuff

Question 1

Obligate aerobe definition & type of respiration

Answer 1

Only grows in the presence of oxygen, uses Aerobic respiration (like us)
Dependent on oxygen

Question 2

Obligate Anaerobe definition & type of respiration

Answer 2

Only grows without oxygen, uses Anaerobic respiration, different electron acceptor for electron transport chain than O2
poisoned by oxygen

Question 3

Micro-aerophile definition & type of respiration

Answer 3

Typically obligate aerobe, but prefers lower concentrations of O2
Aerobic respiration, but poisoned by too much oxygen

Question 4

Facultative anaerobe definition & type of respiration

Answer 4

Prefers aerobic, but can make low O2 conditions work,
Aerobic respiration and fermentation

Question 5

Aerotolerant anaerobe definition & type of respiration

Answer 5

Uses fermentation, can exist with O2, not poisoned, but doesn’t use it at all. Doesn’t need to be by oxygen

Question 6

Mesophile

Answer 6

15-40 degrees C (we are 37 deg C)
ex Escherichia coli, Salmonella, and most of the common bacteria

Question 7

Psychrophile

Answer 7

<15 deg C
ex Chryseobacterium greenlandensis

Question 8

Psychrotroph

Answer 8

Cold tolerant, the fridge wont save you! optimal growth at 15-40 deg C
ex Listeria monocytogenes

Question 9

Thermophile

Answer 9

50-80 deg C (Thermus aquaticus ex. first PCRed DNA or something?)

Question 10

Hyperthermophile

Answer 10

> 80 deg, found in hot springs, deep sea thermal vents, ex Geogemma barossi

Question 11

Neutrophile

Answer 11

5.5-8.5 pH (neutral)

Question 12

Acidiophile

Answer 12

<5.5, think volcanic conditions, very/acidic

Question 13

Alkaliphile

Answer 13

> 8.5 Requires high pH very/basic

Question 14

Halophile

Answer 14

High salt, not in ocean think salt flats ex Halophilic archaea

Question 15

Halotroph

Answer 15

tolerates high salt, ex some cyanobacteria can grow in marine environments, high salt environments, and in freshwater environments

Question 16

Barophile

Answer 16

requires high pressure (~1000atm) think bottom of ocean I think? ex. Halomonas salaria