A Bacterial Cell That Contains an Outer Membrane and Periplasmic

question 13

Multiple Choice

A bacterial cell that contains an outer membrane and periplasmic space stains pink to red on Gram stain.Which one of the following statements explains this discrepancy?

• A) The bacteria were subjected to too much alcohol during the decolorization process, causing the organism to absorb the pink-to-red dye.
• B) The bacteria with an outer membrane and periplasmic space should not be Gram stained because of their cell wall content.
• C) Something is wrong with the lot of stains and may be expired.
• The gram stain reagents are most likely expired.
• D) No discrepancy is present; organisms that contain an outer membrane and periplasmic space should stain pink because of their cell wall composition.

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Definitions:

NaOH

Sodium hydroxide, a strong base used in both industry and laboratories.

Major Organic Products

The primary substances produced in an organic chemical reaction, often dictated by factors like reactivity and stability.

Intramolecular Heck Reaction

A type of palladium-catalyzed carbon-carbon coupling reaction that occurs within a single molecule, forming cyclic products.

Synthesis

The process of combining two or more entities to form a new product, often referring to the chemical creation of compounds.