PORTAGE LEARNING CHEM 103 MODULES 1 TO 6 EXAM ACTUAL EXAM PAPER 2026 QUESTIONS WITH ANSWERS GRADED A+

PORTAGE LEARNING BIOD 171
MICROBIOLOGY LAB NOTEBOOK
COMPREHENSIVE SCRIPT 2026 COMPLETE
QUESTIONS AND SOLUTIONS GRADED A+

⩥ NON-LACTOSE FERMENTERS on the EMB and McConkey agars
appear ____________________. Answer: Colorless


⩥ On EMB agar, LACTOSE FERMENTERS appear
____________________ (small and large acid production). Answer:
Metallic Green for large acid production Purple for small acid
production


⩥ Beta-hemolysis (complete cell lysis). Answer: Clearing around growth


⩥ Alpha-hemolysis (partial cell lysis). Answer: Greening around growth


⩥ Gamma-hemolysis (no cell lysis). Answer: No change in the medium


⩥ Positive Result For Catalase Test. Answer: Bubbles


⩥ Negative Result For Catalase Test. Answer: No Bubbles

, ⩥ Positive Result For Coagulase Test. Answer: Plasma forms a clot


⩥ Negative Result For Coagulase Test. Answer: Plasma remains liquid


⩥ Positive Result For Gelatin Liquidification Test. Answer: Gelatin
Liquified


⩥ Negative Result For Gelatin Liquidification Test. Answer: Gelatin
remained solid


⩥ What is the importance of the Coagulase Test?. Answer: It
distinguishes Staphylococcus aureus from other Gram positive cocci


⩥ What is the enzyme used in the Gelatin Liquidification Test?. Answer:
Gelatinase


⩥ Positive Result For Hydrolysis of Milk Protein Test. Answer: clearing
around bacteria


⩥ What is the ENZYME used in the Hydrolysis of Milk Protein Test?.
Answer: Casease