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MIP 300 Study Guide Questions with Verified Answers | A+ Guaranteed
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MIP 300 Study Guide Questions with VerifiedAnswers | A+ Guaranteed
Phospholipid bilayer components - ✔✔-phosphotidylethanolamine
-Hopanoids
-Proteins and glyco proteins
-Peripheral and integral proteins
hopanoids - ✔✔-Structurally similar to sterols
-stabilize membrane
Proteins - ✔✔-Nutrients and waste transport
-secreted protein transport
-Carry out metabolic processes
-Interaction with environment
-Flagellar motors
cell envelope - ✔✔All structures outside the Plasma membrane
-Peptidoglycan
Cell wall - ✔✔-Gives shape cell
-protection from osmotic pressure
-Protection from toxic substances
Gram neg cell wall - ✔✔-Large periplasmic space
-Periplasmic enzymes
,This peptidoglycan layer
-Outer membrane
periplasmic space - ✔✔The space between the inner and outer cell membranes in
Gram-negative bactera. The peptidoglycan cell wall is found in the periplasmic space,
and this space sometimes contains enzymes to degrade antibiotics.
outer mebrane - ✔✔-Porin proteins allow for molecules to pass
-Larger molecules transported by permeases
-holds in periplasmic enzymes
-Avoid immune difenses
-Barrier to toxins
-contain endotoxin(LPS)
permeases - ✔✔substrate-specific carrier proteins
Endotoxins - ✔✔released only when bacteria die and their cell walls break down
-Lipid A
-core polysacharide
O antigen
gram pos cell wall - ✔✔-Small paeriplasmic space
-Small # periplasmic enzymes
-Thick petidoglycan
-Teichoc acids
-Lipoteichoic acids
, -Exoenzymes
Exoenzymes - ✔✔dissolve extracellular barriers and penetrate through or between
cells
PPG components - ✔✔-Carbohydrates
-NAG
-NAM
-Amino acids(Tentrapeptides)
NAG - ✔✔N-acetylglucosamine
NAM - ✔✔N-acetylmuramic acid
tetrapeptide - ✔✔4 amino acids
-L-alanine
-D-glutamic acid
-L-lysine
-D-alanine
Structure of PPG - ✔✔-Very large molecules
-Backbone of alternating NAG and NAM, cross linked by covalent bonds
-Tetrapeptide attached to NAM
-Gram pos=interbridge
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