MICROBIOLOGY LAB 9 EXAM PORTAGE
LEARNING STUDY GUIDE 2026 QUESTIONS
WITH COMPLETE SOLUTIONS GRADED A+
◉ Phase I Nitrate Reduction Test Postive Result. Answer: red
◉ Phase I Nitrate Reduction Test Negative Result. Answer: no
change
◉ Phase II Nitrate Reduction Test Postive Result. Answer: no change
◉ Phase II Nitrate Reduction Test Negative Result. Answer: pink
◉ Positive Result For Sulfur Reduction Test. Answer: Black
Precipitate
◉ What is the black precipitate formed in a positive sulfur reduction
test?. Answer: Ferric Sulfide
◉ What does Blood Typing identify?. Answer: the presence of an
Antigen
, ◉ What is a positive result for blood typing?. Answer:
(Agglutination) Clumping in the well for the antigen/antibody; Rh
factor = + blood type
◉ Mold -- MACROscopic View. Answer: hairy and fuzzy
◉ Mold -- MICROscopic View. Answer:
◉ Yeast -- MACROscopic View. Answer: colorless and smooth --
similar to bacteria
◉ Yeast -- MICROscopic View. Answer: bigger than bacteria and large
◉ Euglena -- Locomotion Tool. Answer: Flagella
◉ Euglena -- Image. Answer: green in color
◉ Amoeba -- Locomotion Tool. Answer: Pseudopodia
◉ Amoeba -- Image. Answer:
◉ Paramecium -- Locomotion Tool. Answer: Cilia
LEARNING STUDY GUIDE 2026 QUESTIONS
WITH COMPLETE SOLUTIONS GRADED A+
◉ Phase I Nitrate Reduction Test Postive Result. Answer: red
◉ Phase I Nitrate Reduction Test Negative Result. Answer: no
change
◉ Phase II Nitrate Reduction Test Postive Result. Answer: no change
◉ Phase II Nitrate Reduction Test Negative Result. Answer: pink
◉ Positive Result For Sulfur Reduction Test. Answer: Black
Precipitate
◉ What is the black precipitate formed in a positive sulfur reduction
test?. Answer: Ferric Sulfide
◉ What does Blood Typing identify?. Answer: the presence of an
Antigen
, ◉ What is a positive result for blood typing?. Answer:
(Agglutination) Clumping in the well for the antigen/antibody; Rh
factor = + blood type
◉ Mold -- MACROscopic View. Answer: hairy and fuzzy
◉ Mold -- MICROscopic View. Answer:
◉ Yeast -- MACROscopic View. Answer: colorless and smooth --
similar to bacteria
◉ Yeast -- MICROscopic View. Answer: bigger than bacteria and large
◉ Euglena -- Locomotion Tool. Answer: Flagella
◉ Euglena -- Image. Answer: green in color
◉ Amoeba -- Locomotion Tool. Answer: Pseudopodia
◉ Amoeba -- Image. Answer:
◉ Paramecium -- Locomotion Tool. Answer: Cilia