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STRAIGHTERLINE MICROBIOLOGY LAB BIO250L LABS 1 2 3 4 5 6 7 8 EXAM SCRIPT 2026 TESTED QUESTIONS AND FULL SOLUTION GRADED A+

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STRAIGHTERLINE MICROBIOLOGY LAB BIO250L LABS 1 2 3 4 5 6 7 8 EXAM SCRIPT 2026 TESTED QUESTIONS AND FULL SOLUTION GRADED A+

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STRAIGHTERLINE MICROBIOLOGY LAB
BIO250L LABS 1 2 3 4 5 6 7 8 EXAM SCRIPT
2026 TESTED QUESTIONS AND FULL
SOLUTION GRADED A+

⩥ 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


⩥ What is the SUBSTRATE used in the Hydrolysis of Milk Protein
Test?. Answer: Casein


⩥ What does the Phenol Red Fermentation Test determine?. Answer:
Whether the carbohydrate (glucose, lactose, sucrose) was fermented


⩥ Positive Result For the Phenol Red Fermentation Test. Answer: A and
A/G (acid & acid/gas) = YELLOW FOR ACID PRODUCTION


⩥ Negative Result For the Phenol Red Fermentation Test. Answer: Red
(No color change)


⩥ How do you know if there is acid production?. Answer: YELLOW


⩥ What is the pH Indicator used in the Phenol Red Fermentation Test?.
Answer: Phenol Red


⩥ Postive Result for Starch Hydrolysis Test. Answer: clearing around
the bacteria

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