Microbio

Question 1

Staph. aureus?

Answer 1

Gram positive, catalase positive, coagulase positive, cocci

Question 2

Strep. pneumoniae?

Answer 2

Gram positive, catalase negative, alpha haemolytic and optochin sensitive cocci

Question 3

Strep. viridans?

Answer 3

Gram positive, catalase negative, alpha haemolytic and optochin resitant cocci

Question 4

Strep. pyogenes?

Answer 4

Gram positive, catalase negative, beta haemolytic, lancefield A cocci

Question 5

Strep. agalactiae?

Answer 5

Gram positive, catalase negative, beta haemolytic, lancefield B cocci

Question 6

H. influenzea?

Answer 6

Gram negative, aerobic bacilli which requires clotting factors 5 and 10 to grow

Question 7

E.coli and K.pneumoniae?

Answer 7

Gram negative, aerobic bacilli which is lactose fermenting

Question 8

Proteus/Salmonella/Shigella?

Answer 8

Gram negative, aerobic bacilli which are non-lactose fermenting and oxidase negative

Question 9

What agars bust mycobacterium TB and strep pneumoniae be grown on?

Answer 9

Mycobacterium TB = Lowenstein-Jensen agar

Strep. pneumoniae = chocolate

Question 10

Abxs which inhibit cell wall synthesis?

Answer 10

Vancomycin and Beta-lactams (penicillins, cefotaxime and ceftriaxone and ending in ‘penem’)

Question 11

Abxs which inhibit nucleic acid synthesis?

Answer 11

Trimethoprim, Rifampicin and ending in ‘floxacin’ or ‘azoles’

Question 12

Abxs which inhibit protein synthesis?

Answer 12

Tetracylines and ending in ‘omycin’ except vancomycin

Question 13

Pseudomonas?

Answer 13

Gram negative aerobic bacilli which is non-lacose fermenting and oxidase positive