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Assertion : Some bacteria have the caoac...

Assertion : Some bacteria have the caoacity to retain Gram stain after treatement with acid alcohol.
Reason : They are known as Gram positive as they are attracted towards positive pole under influence of electric current.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and the reason are true and the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
c
The cell wall of Gram-negative bacteria contains alcohol-soluble lipid, while the cell wall of Gram- positive bacteria lacks the lipids and therefore resist decolourisation and retain the primary stain, appearing violet. Gram-negative bacteria are decolorized by organic solvents and therefore, take the counter stain, appearing red. Gram +ve bacteria does not attracted towards positive pole under influence of electric current.
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