Biology
NULL
Medium
Question
Gram positive bacteria appear _______________?
A
Purple
✓ Official correct answer
B
Red
C
Pink
D
Blue
Community credibility
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A
Purple
No member explanations yet for this option.
B
Red
No member explanations yet for this option.
C
Pink
No member explanations yet for this option.
D
Blue
No member explanations yet for this option.
Explanation
In the Gram staining procedure, Gram-positive bacteria retain the crystal violet-iodine complex and appear purple, while Gram-negative bacteria lose this stain and take up the counterstain, appearing pink or red.