The Purpose of a Mordant in the Gram Stain Is

question 9

Multiple Choice

The purpose of a mordant in the Gram stain is to

• A) make the bacterial cells larger.
• B) make gram- negative cells visible.
• C) remove the simple stain.
• D) prevent the crystal violet from leaving the cells.
• E) make the flagella visible.

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Definitions:

Electrophilic

Describes chemical species that are attracted to electrons and tend to accept electrons during chemical reactions.

Benzaldehyde

An aromatic aldehyde with a formula of C6H5CHO, known for its almond-like aroma.

Acetaldehyde

A volatile and colorless flammable liquid compound with a pungent odor, widely used in the chemical synthesis of various compounds.

Resonance Structures

Different Lewis structures for the same molecule that depict different possible arrangements of electrons without altering the positions of the atoms.