9. When we test for the effectiveness of disinfectants AKA disk diffusion method, we look for? A. Type of hemolysis
B. Agglutination
C. Zone of inhibition
D. Fermentation

10. All the following factors affect the effectiveness of prescribed antibiotic except?
A. Dose of the drug
B. Intake duration
C. Other chronic medical condition the patient may have
D. Age of the patient

11. The enteric bacteria are group of microorganisms which commonly infect?
A. Respiratory system
B. Digestive system
C. Cardiovascular system
D. Reproductive system

12. The best plate to cultivate enteric bacteria is?
A. EMB
B. Blood agar
C. Mannitol salt
D. Sabouraud agar plate

13. The Ingredient in Hektoen plate which makes the agar selective is?
A. Salt
B. Glucose
C. Mannitol
D. Bile acids