L8: PPG, teichoic acid, LPS

Question 1

LPS uses what mechanisms?

Answer 1

ABC transporter and Wzy mechanism

Question 2

PPG uses which mechanism?

Answer 2

Wzy mechanism

Question 3

T/F Gram-negative contain an outer membrane?

Answer 3

True

Question 4

NAG/NAM linked by carbohydrate polymers and cross linked peptide chains

Answer 4

PPG structure and monomers

Question 5

Structure before lipid cycles on ppg synthesis

Answer 5

Parks nucleotide

Question 6

Assembly, transport, polymerization

Answer 6

PPG synthesis

Question 7

Activated muramic acids use ATP to assemble Park’s nucleotide

Answer 7

Assembly

Question 8

Lipid I and II move across the membrane to be polymerized

Answer 8

Transport

Question 9

Occurs in the extracellular space, linking of peptides

Answer 9

Polymerization

Question 10

On surface of gram-positive cell walls, help maintain structure to ppg, covalently liked to ppg layers

Answer 10

Teichoic acid

Question 11

Spans ppg layer and is covalently linked to plasma membrane

Answer 11

Lipoteichoic acid

Question 12

Found on gram-negative bacteria, O side chain, polysaccharide core, lipid A head

Answer 12

Lipopolysaccharide (LPS)

Question 13

Three known pathways

Answer 13

wzy dependent, ABC-transporter dependent, synthase-dependent

Question 14

Three known pathways

Answer 14

wzy dependent, ABC-transporter dependent, synthase-dependent

Question 15

Involves hetero and branched polysaccharides, does not require energy

Answer 15

Wyz dependent

Question 16

Used for non-branched polysaccharides, requires ATP

Answer 16

ABC-transporter dependent