Gram Staining Activity Flashcard

Flashcard
•
Science
•
7th - 12th Grade
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Gram Staining?
Back
A laboratory technique used to differentiate bacterial species into two groups based on the characteristics of their cell walls.
2.
FLASHCARD QUESTION
Front
What are the two main types of bacteria identified by Gram Staining?
Back
Gram-positive and Gram-negative.
3.
FLASHCARD QUESTION
Front
What color do Gram-positive bacteria stain?
Back
Purple.
4.
FLASHCARD QUESTION
Front
What color do Gram-negative bacteria stain?
Back
Pink.
5.
FLASHCARD QUESTION
Front
What is the purpose of the primary stain in Gram Staining?
Back
To initially stain all the cells, allowing for differentiation later.
6.
FLASHCARD QUESTION
Front
What role does iodine play in Gram Staining?
Back
Iodine acts as a mordant, helping the primary stain adhere to the bacterial cell wall.
7.
FLASHCARD QUESTION
Front
What is the purpose of the decolorization step in Gram Staining?
Back
To wash out the primary stain from Gram-negative bacteria, allowing for differentiation.
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