BIOD 171 MICRO BIOLOGY
EXAM 2026 2027 VERIFIED
ANSWERS ACTUAL UPDATED
PRACTICE QUESTIONS HIGH-
YIELD STUDY GUIDE EXAM
PREP MATERIAL LATEST
VERSION GRADED A+ SUCCESS
REVIEW PACK COMPLETE
EDITION FINAL RELEASE
RESOURCE PACK
LAB EXAM
1. True or False. The presence of cytochrome C is often associated with aerobic bacteria. True
2. Which STD is most often identified using the Oxidase test? Gonorrhea
3. Using the catalase test, a Staphylococcus sample would be:
A. Gram (+), Catalase. A. Gram-positive, Catalase-positive.
4. True or False. The catalase test is a qualitative and selective assay. False. The catalase test is
a qualitative and differential assay.
,
, EXAMS
1. Fibrin is another term for ? blood clots
2. Once you inoculate the rabbit plasma containing media for the coagulase test, how long do you
wait to read the sample results? D. 12-14 hours which is the equivalent of an overnight
incubation.
3. How is fibrin beneficial to a bacterium in terms of antibody recognition? The presence of
fibrin can form a ‘hard’ shell (or coat) around the bacterium, making antibody binding
difficult. If antibodies are unable to bind, the bacterium can escape immune detection.
4. The hydrolysis of triglycerides on a spirit blue agar plate most closely resembles that of
hemolysis on a blood agar plate. B. Beta.
5. As stated in the lab video, an example of a lipase-positive bacterium is:
C. Bacillus subtilis. An unknown bacterium (Sample A) was tested using several of the rapid,
qualitative tests described within this lab lecture. Using the images of the results below indicate the
lab results for each test (1-3) as either positive or negative, then using the decision tree identify the
unknown bacterium by the corresponding letter.
,
, ,
BIOD 171: MICRO BIOLOGY
EXAMSQUESTIONS AND VERIFIED
ANSWERS2026CERTIFIED 100%
GRADED A+
The unknown sample is: Oxidase-positive (aerobic), catalase negative and coagulase- positive,
which on the decision tree, corresponds with the letter C.
LAB EXAM
1. What three elements are used in an autoclave to sterilize equipment? heat, pressure, and steam
,
EXAM 2026 2027 VERIFIED
ANSWERS ACTUAL UPDATED
PRACTICE QUESTIONS HIGH-
YIELD STUDY GUIDE EXAM
PREP MATERIAL LATEST
VERSION GRADED A+ SUCCESS
REVIEW PACK COMPLETE
EDITION FINAL RELEASE
RESOURCE PACK
LAB EXAM
1. True or False. The presence of cytochrome C is often associated with aerobic bacteria. True
2. Which STD is most often identified using the Oxidase test? Gonorrhea
3. Using the catalase test, a Staphylococcus sample would be:
A. Gram (+), Catalase. A. Gram-positive, Catalase-positive.
4. True or False. The catalase test is a qualitative and selective assay. False. The catalase test is
a qualitative and differential assay.
,
, EXAMS
1. Fibrin is another term for ? blood clots
2. Once you inoculate the rabbit plasma containing media for the coagulase test, how long do you
wait to read the sample results? D. 12-14 hours which is the equivalent of an overnight
incubation.
3. How is fibrin beneficial to a bacterium in terms of antibody recognition? The presence of
fibrin can form a ‘hard’ shell (or coat) around the bacterium, making antibody binding
difficult. If antibodies are unable to bind, the bacterium can escape immune detection.
4. The hydrolysis of triglycerides on a spirit blue agar plate most closely resembles that of
hemolysis on a blood agar plate. B. Beta.
5. As stated in the lab video, an example of a lipase-positive bacterium is:
C. Bacillus subtilis. An unknown bacterium (Sample A) was tested using several of the rapid,
qualitative tests described within this lab lecture. Using the images of the results below indicate the
lab results for each test (1-3) as either positive or negative, then using the decision tree identify the
unknown bacterium by the corresponding letter.
,
, ,
BIOD 171: MICRO BIOLOGY
EXAMSQUESTIONS AND VERIFIED
ANSWERS2026CERTIFIED 100%
GRADED A+
The unknown sample is: Oxidase-positive (aerobic), catalase negative and coagulase- positive,
which on the decision tree, corresponds with the letter C.
LAB EXAM
1. What three elements are used in an autoclave to sterilize equipment? heat, pressure, and steam
,
