Colony Info/Stain/Cells

Question 1

when examining an agar plate, if the description of morphology is “R”, it means ____; “S” means ____

Answer 1

R = rough
S = smooth

Question 2

acid fast stain used for ____

Answer 2

mycobacterium

Question 3

blood agar used for ____

Answer 3

streptococcus categories
(demonstrates types of hemolysis)

Question 4

alpha hemolysis is partial and has ____ ring

(2) examples

Answer 4

green ring
strep pneumonia
strep viridans

Question 5

MC cause of meningitis

Answer 5

strep pneumonia (quelling reaction)

Question 6

bacteria for subacute bacterial endocarditis

Answer 6

strep viridians (must have rheumatic fever first)

Question 7

gamma hemolysis has a ___ ring, bacteria is ____

Answer 7

red

strep mutans

Question 8

strep mutans causes

Answer 8

dental cavities/carries

Question 9

chocolate agar aka (2) and tests for ___

Answer 9

heated blood agar
Thayer Martin Agar
gonorrhea

Question 10

Giemsa stain tests for

Answer 10

protozoa

Question 11

primary stain (for gram stain procedure)

Answer 11

crystal violet or methylene blue

Question 12

Fixer stain (for gram stain procedure)

Answer 12

iodine - mordant

Question 13

Decolorizer (for gram stain procedure)

Answer 13

Acetone (or ethyl alcohol) – alcohol wash

Question 14

counterstain (for gram stain procedure)

Answer 14

saffarin (red/pink)

Question 15

plasmid DNA transfer via sex pilus

Answer 15

conjugation

Question 16

Bacteriophage transfer genetic material

Answer 16

transduction

Question 17

direct uptake of FREE DNA

Answer 17

transformation