bacterial growth and metabolism

Question 1

what do bacteria require for growth?

Answer 1

carbon
nitrogen
nutrients
temp
oxygen
iron
pH
water

Question 2

what temps do bacteria prefer?

Answer 2

20-40 for mesophiles (most pathogens), others vary

Question 3

what are fastidious bacteria?

Answer 3

bacteria that cannot synthesize their own nutrients

Question 4

what pH do bacteria prefer?

Answer 4

nuetral, most die in acidic conditions

Question 5

what controls bacterial rate of growth?

Answer 5

nutrients, temperature, ability to remove toxins

Question 6

what is generation time?

Answer 6

time required to divide

Question 7

what are the phases of growth described by Malthus?

Answer 7

lag phase
log phase
stationary phase
death phase

Question 8

what growth phase are antibiotics most effective in?

Answer 8

log phase

Question 9

what is group translocation?

Answer 9

enzymes modify substance as it enters (requires energy)

Question 10

what are two parts of metabolism?

Answer 10

catabolism (breaking down) and anabolism (building)

Question 11

what is the aerobic track of metabolism?

Answer 11

krebs and ETC (34 ATP)

Question 12

what is the anaerobic track of metabolism?

Answer 12

fermentation (2 ATP)