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Microbiology Lab – Stains Exam Questions and Answers 100% Pass

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Microbiology Lab – Stains Exam Questions and Answers 100% Pass Simple stain - -Add color to cells for viewing -Highlight entire organism's shape and basic structures -Includes: Methylene blue Safranin Crystal violet Carbolfuchsin;Negative stain - -Enhances viewing of morphology, capsules -Bacteria are live -No heat fixing! (no denaturing) -Nigrosin ink -View under oil -Anionic (acidic) simple stain;Gram stain - -Determines cell wall type (gram positive or negative) -Differential stain;Gram stain procedure - 1. Crystal violet 2. Iodine (mordant) 3. Alcohol (decolorizer) 4. Safranin (counterstain

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Microbiology Lab

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Institution: Microbiology Lab
Course: Microbiology Lab

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Uploaded on: December 23, 2024
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Written in: 2024/2025
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microbiology lab stains exam questions and answe

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Microbiology Lab – Stains Exam Questions and
Answers 100% Pass

Simple stain - ✔✔-Add color to cells for viewing

-Highlight entire organism's shape and basic structures

-Includes:

Methylene blue

Safranin

Crystal violet

Carbolfuchsin;Negative stain - ✔✔-Enhances viewing of morphology, capsules

-Bacteria are live

-No heat fixing! (no denaturing)

-Nigrosin ink

-View under oil

-Anionic (acidic) simple stain;Gram stain - ✔✔-Determines cell wall type (gram positive or negative)

-Differential stain;Gram stain procedure - ✔✔1. Crystal violet

2. Iodine (mordant)

3. Alcohol (decolorizer)

4. Safranin (counterstain)

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Microbiology Lab – Stains Exam Questions and Answers 100% Pass

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