A: Which of the following is an incorrect statement regarding the practical uses

Question

A: Which of the following is an incorrect statement regarding the practical uses of agar in the microbiology lab and why?

1. it is liquid at 20 celcius

2. it is insoluble in water

3. it is an excellent nutrient for bacteria

B: Bob comes into the hospital and is treated with high does of antibiotics. This may result in which type of nosocomial infection? Why

1. Latrogenic diease

2. Zoonosis

3. Exogenenous infection

4. Latent infection

5. Endogenous infection

Part C: There is eviden that, during gestation, the fetus experences intravterine contact with maternal microbs. This suggest that the developing fetus is not (sterile?aseptic?axenic) environment as previously thought? explain why?

Part D: Pathogenic microbes of the eyes typically end up where due to the action of the lacrimal system? Explain why

1. Skin

2. Bloodstream

3. Stomach

4. Lungs

Explanation / Answer

A.) 2.

Agar is insoluble in cold water but dissolves readily in boiling water

B.) 1.

Latrogenic disease due to adverse drug reactions

C.) Axenic

Developing fetus is not axenic i.e free from living microbes.

D.) 1.

Skin: settling on the epithelial surfaces.

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