Bacteria Cell Wall

Exam

Gram-positive

Difference between gram-positive and negative bacteria

____________ - they have a cell membrane; they also have a cell wall (made of thick peptidoglycan), one responsible for retaining the purple color

Gram-negative

Difference between gram-positive and negative bacteria

____________ - have thin peptidoglycan (probably retain the purple but will show the pink color); on top of peptidoglycan there is a phospholipid bilayer or outer membrane

Hans Christian Gram

Who created the idea of Gram Staining?

Safranin

This is a liquid used in Gram Staining to know if gram negative or positive.

Bacteria capsule

___________ - outermost layer of the cell it helps attach the cell to the pulmonary tract; well-organized structure if it’s not organized then it’s a slime layer

Endospore

It is a result of quorum sensing; multilayered coat helps to survive in harsh environment