MICROBIOLOGY 6

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created 4 years ago by Breean_Donaghy
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Microbiology
Chapter 6
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1

DEATH PHASE

POPULATION DECREASES

2

STATIONARY PHASE

PERIOD OF EQUILIBRIUM

3

LOG PHASE

RAPID EXPONENTIAL GROWTH

4

LAG PHASE

STARTING PHASE

5

WHAT IS CHEMICALLY DEFINED MEDIA?

EXACT CHEMICAL COMPOSITION IS KNOWN

6

MICROAEROPHILES

OCCURS WHERE O2 IS LOW CONCENTRATION

7

AEROTOLERANT ANAEROBES

GROWTH OCCURS EVENLY O2 HAS NO EFFECT

8

OBLIGATE ANAEROBES

NO O2 TO GROW

9

FACULTATIVE ANAEROBES

PREFERS O2 BUT CAN TOLERATE WITHOUT O2

10

OBLIGATE AEROBES

HAVE TO HAVE O2 TO GROW

11

CHEMOHETEROTROPHS

USE ORGANIC CARBON SOURCES FOR ENERGY

12

PSYCHROPHILES

CAN GROW IN COLD TEMPERATURES

COLD-LOVING MICROBES

13

MESOPHILES

MODERATE-TEMPERATURE LOVING MICROBES

14

THERMOPHILES

HEAT GROWING MICROBES

15

WHAT TOLERATES HIGH OSMOTIC PRESSURE?

FACULTATIVE HALOPHILES

16

WHAT REQUIRES HIGH OSMOTIC PRESSURE?

OBLIGATE HALOPHILES

17

WHAT CAUSES PLASMOLYSIS?

HYPERTONIC ENVIRONMENTS

18

WHAT pH DO MOLDS AND YEASTS GROW?

BETWEEN 5 & 6

19

WHAT pH DO BACTERIA GROW?

BETWEEN 6.5 AND 7.5