How many layers are in a gram positive cell wall and how many are in a gram negative cell wall ?

The cell wall of gram-negative bacteria is thin (approximately only 10 nanometers in thickness), and is typically comprised of only two to five layers of peptidoglycan, depending on the growth stage. In gram-positive bacteria, the cell wall is much thicker (20 to 40 nanometers thick).

what is shown in the image?

eukaryote

chloroplast

mitochondrion

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