Quick things (Mock)

Question 1

Gram-negative bacteria: (4)

Answer 1

• Stains RED/PINK
• has LPS layer with lipopolysach. and peptidogl.
• thin layer of peptidogl. but in between membranes
• AB resistant

Question 1

How do bacteria move?

Answer 1

Run and tumble. CCW for a forward “run”. CW for a change of direction “tumble”

Question 2

Gram-positive bacteria: (4)

Answer 2

• Stains PURPLE
• has a thick layer of peptidoglycan
• No LPS, has NAG and NAM
• Has lipoteichoic and teichoic acid

Question 3

Glycocalyx, 2 types

Answer 3

• Capsule (organized) harder to kill –> protects from phagocystosis
• Slime layer (unorganized) –> biofilms

Question 4

Parts of a flagella: (3)

Answer 4

• Basal body
• Hook
• Filament

Question 5

_____ helps bacteria obtain iron and the human cell uses _____ to protect them

Answer 5

-Sidrophores
- Transferrin

Question 6

Archaea have ___ bonds and bacterial peptidoglycan have ____.

Answer 6

• 1,3 bonds
• 1,4 bonds

Question 7

Tubulin is to ____
Actin is to ____
Intermediate filaments are to ____

Answer 7

• FtsZ
• MreB
• CreS