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Which of the following organisms have thick peptidoglycan in their cell wall?

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Which of the following organisms have thick peptidoglycan in their cell wall?

(a) Gram-negative bacteria

(b) Gram-positive bacteria

(c) Yeast

(d) Molds

I got this question in final exam.

The query is from Bacterial Taxonomy in division Prokaryotes and Viruses of Life Sciences

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Right answer is (b) Gram-positive bacteria

To explain: Peptidoglycan is a specific feature of bacteria; it is present in the cell wall of bacteria and composed of NAG and NAM acid. Gram-negative bacteria have a thin peptidoglycan layer while gram-positive bacteria have a thick peptidoglycan layer.

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