BIOCHEMICAL TESTING (OTHERS)
Authored by Daverich Hoyle 侯英敏
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University
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56 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Differentiate microorganisms based on the ability to use acetamide as the sole source of carbon
Acetamide Utilization
Acetate Utilization
l-Alanine-7-amido-4-methylcourmarin (Gram-Sure)
Bacitracin Susceptibility
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Differentiate organisms based on ability to use acetate as the sole source of carbon. Generally used to differentiate Shigella spp. from Escherichia coli.
Acetamide Utilization
Acetate Utilization
l-Alanine-7-amido-4-methylcourmarin (Gram-Sure)
Bacitracin Susceptibility
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This test is used in conjunction with the Gram stain to distinguish aerobic grampositive rods or coccobacilli that may appear gramnegative or gramvariable
Acetamide Utilization
Acetate Utilization
l-Alanine-7-amido-4-methylcourmarin (Gram-Sure)
Bacitracin Susceptibility
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This test is used for presumptive identification and differentiation of beta-hemolytic group A streptococci (Streptococcus pyogenes– susceptible) from other betahemolytic streptococci. It is also used to distinguish staphylococci species (resistant) from micrococci (susceptible)
Acetamide Utilization
Acetate Utilization
l-Alanine-7-amido-4-methylcourmarin (Gram-Sure)
Bacitracin Susceptibility
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acetamide Utilization: The production of ammonia results in an _____ pH, causing the medium to change color from green to royal blue.
alkaline
acidic
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acetamide Utilization: Positive Quality Control — growth; blue color
Pseudomonas aeruginosa (ATCC 27853)
Escherichia coli (ATCC 25922)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acetamide Utilization: Negative Quality Control — no growth; green color
Pseudomonas aeruginosa (ATCC 27853)
Escherichia coli (ATCC 25922)
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