Questions: You use the Gram staining procedure to stain an L-form bacterium (a bacterium that lacks a cell wall). After the staining procedure is finished, the color of the bacterium will be purple. True False Moving to the next question prevents changes to this answer.

You use the Gram staining procedure to stain an L-form bacterium (a bacterium that lacks a cell wall). After the staining procedure is finished, the color of the bacterium will be purple.
True
False Moving to the next question prevents changes to this answer.

Transcript text: You use the Gram staining procedure to stain an L-form bacterium (a bacterium that lacks a cell wall). After the staining procedure is finished, the color of the bacterium will be purple. True False Moving to the next question prevents changes to this answer.

Solution

The answer is False.

Explanation: The Gram staining procedure is used to differentiate bacterial species into two groups based on the structural differences in their cell walls: Gram-positive and Gram-negative. Gram-positive bacteria retain the crystal violet stain and appear purple, while Gram-negative bacteria do not retain the crystal violet stain and appear pink or red after counterstaining with safranin.

L-form bacteria, however, lack a cell wall. The Gram staining procedure relies on the presence of a cell wall to retain the crystal violet stain. Since L-form bacteria do not have a cell wall, they would not retain the crystal violet stain and would not appear purple after the Gram staining procedure. Instead, they would likely appear colorless or take up the counterstain, appearing pink or red.

Therefore, the statement that the color of the bacterium will be purple is false.

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