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BIOL 4200
Final
5
Biology
Undergraduate 4
12/09/2010

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Term
Gram-negative cell
Definition
outer membrane (phospholipid + LPS), periplasmic space (peptidoglycan), inner membrane. This makes 3 layers including 2 membranes.
Term
LPS
Definition
lipopolysaccharide makes up the outer leaflet. Contains O-antigen, core polysaccharide, and lipid A. Is a poisonous endotoxin when it’s not included in the OM.
Term
Fatty acids
Definition
polar head group (phosphate group), glycerol, fatty acid chains (hydrophobic portion)
Term
E.c. Cell division steps
Definition
1) cytokinesis, separation into 2 compartments bounded by IM. 2) septation, double-layer of PG forms. 3) septum splitting (creates 2 daughter cells)
Term
E. Coli cell division proteins
Definition
FtsA, B, E, I, K, L, N, Q, W, X, Z. ZipA. AmiC.
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