MIRCOBIOLOGY LAB PRACTICAL 1 5-8
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11 Terms
GRAM-POSITIVE BACTERIA
A THICK PEPTIDOGLYCAN LAYER GRAM STAINS PURPLE
GRAM-NEGATIVE BACTERIA
HAS A THIN PEPTIDOGLYCAN LAYER GRAM STAIN PINK
TURBIDIMETERY
IS A COMMONLY USED METHOD FOR ENUMERATING BACTERIA OR DETERMINING THE GROWTH PHASE OF AN ACTIVELY GROWTH CULTURE USING A SPECTROPHOTOMETER
PSYCHROPHILES
ORGANISMS THAT GROWN OPTIMALLY BELOW 15 C
MESOPHILES
PEFER TEMPERATURES BETWEEN 15 - 45 C
THERMOPHILES
GROW AT TEMPERATURES ABOVE 45 C
CATALASE
AN ENZYME THAT HELPS PROTECT BACTERIA FROM HYDROGEN PEROXIDE BY BREAKING IT DOWN TO FORM OXYGEN GAS AND WATER
CATALASE POSITIVE
QUICK APPEARANCE OF BUBBLING
CATALASE NEGATIVE
NO BUBBLES
OXIDASE POSITIVE
PURPLE COLOR (PRESENT CYTOCHROME OXIDASE)
OXIDASE NEGATIVE
NO COLOR CHANGE
Note 
Flashcards (22)