Petrus Asks You What the Gram-Negative Result Means and You

question 2

Multiple Choice

Petrus asks you what the Gram-negative result means and you explain that the bacteria causing his grandmother's UTI

• A) have a thin cell wall and an outer membrane which makes the cells less sensitive to the antibiotic penicillin.
• B) have a thick cell wall and an outer membrane which makes the cells less sensitive to the antibiotic penicillin.
• C) have no cell wall but they have a thick outer membrane which makes the cells less sensitive to the antibiotic penicillin.
• D) have a thin cell wall and an inner cell membrane which makes the cells less sensitive to penicillin.
• E) have no cell wall which makes the cells more sensitive to the antibiotic penicillin.

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Definitions:

Mass Depletion

Reduction in the abundance of a resource or material over time due to excessive use or exploitation.

Mass Extinctions

Events in Earth’s history when a significant, abrupt reduction in the diversity and abundance of life occurs.

Species Extinct

A status where a particular species no longer exists anywhere on Earth.

Selective Breeding

Selective breeding is the process of breeding plants and animals for particular genetic traits, aiming to enhance desirable characteristics in future generations.