Bacteria Morphology
Which of the following may be most likely to be missing from a gram-positive bacterium?

Penicillin binding protein
Phospholipid bilayer membrane
Lipopolysaccharide
Peptidoglycan

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Bacteria Morphology
Gram positive cells have a

periplasmic space that traps the crystal violet
second outer membrane that helps to retain the crystal violet stain
multiple layer of peptidoglycan that helps to retain the crystal violet stain
thick capsule that traps the crystal violet stain

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Bacteria Morphology
Which of the following is not true about peptidoglycan?

It is present in prokaryotic cell wall
None of these
It is a polymer consisting of N-acetyl glucosamine, N-acetyl muramic acid and amino acids (alanine, lysine, etc.)
It occurs in the form of a bag shaped macro molecule surrounding the cytoplasm membrane

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Bacteria Morphology
Porins are located in

the periplasmic space of gram-negative bacteria
the cytoplasmic membrane of both gram-negative and gram-positive bacteria
the peptidoglycan layer of gram-positive bacteria
the outer membrane of gram-negative bacteria

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