MB 302 ASSESMENT EXAM 2024/2025
WITH ANSWERS A+
Rotor - ANSWER-drives filament rotation
switch complex - ANSWER-changes direction of rotation
Stator - ANSWER-MotA (provide energy) and MotB (anchored in
peptidoglycan which generates torque; turning force)
CyWhat happens without FtsZ? - ANSWER-no cell division, cell will grow
until bursts
What is MreB required for? - ANSWER-rod shape, helical coil, directs
localized PG
What is crescentin required for? - ANSWER-crescent shape, a curved rod
Extracellular polysaccharides (EPS) - ANSWER-usually found in gram
positives; capsule (anchored), slime (loose)
Advantages of EPS - ANSWER-extra adhesion to surfaces, extra cohesion
to other cells, desiccation resistance, prevents phagocytosis
WITH ANSWERS A+
Rotor - ANSWER-drives filament rotation
switch complex - ANSWER-changes direction of rotation
Stator - ANSWER-MotA (provide energy) and MotB (anchored in
peptidoglycan which generates torque; turning force)
CyWhat happens without FtsZ? - ANSWER-no cell division, cell will grow
until bursts
What is MreB required for? - ANSWER-rod shape, helical coil, directs
localized PG
What is crescentin required for? - ANSWER-crescent shape, a curved rod
Extracellular polysaccharides (EPS) - ANSWER-usually found in gram
positives; capsule (anchored), slime (loose)
Advantages of EPS - ANSWER-extra adhesion to surfaces, extra cohesion
to other cells, desiccation resistance, prevents phagocytosis
