Antibiotics

Question 1

What is the function of antibiotics?

Answer 1

to help the body fight infectio caised by bacteria when its own defenses are not enough.

Question 2

What is the function of bacteriostatic antibiotics?

Answer 2

Bacteriostatic AB’s inhibit the growth and replication of baceria
They work alongsie the immune system
Interefer with DNA replication, protien production and metabolism.

Question 3

What is the function of bactericidal antibiotics?

Answer 3

Bactericidal AB’s kills bactria straight away by preventing it form forming a cell wall, this causes it to burst due to osmotic pressure
Penicillin is Bactericidal.

Question 4

What is selective toxicity?

Answer 4

The ability of an AB to strke and kill foreign bodies and cells without harming any of our host cells.

Question 5

What is gram positive ?

Answer 5

Gram positive bacteria have cell walls that can retain the Gram Stain during culture testing.

Gram positive infections usually occur in the respiratory tract and soft tissues e.g. Streptococcus phneumoniae

Question 6

What is gram negative?

Answer 6

Gram negative bacteria do not retain the Gram Stain during culture testing.

Gram negative infections usually occur in the GI Tract e.g. E. coli