janus is a keen baseball player at the high school where you are employed as a n

Question

janus is a keen baseball player at the high school where you are employed as a nurse. He comes to your office and shows you an injury to his knee which he got by sliding into home base, scoring a game-winning run. His knee has a red, raw patch where the skin has been scraped off, and the area around the wound is swollen. Janus tells you that he washed his knee with soap and water to remove any germs and then put a bandage on it. janus tells you he knows that yeast cells are also small and round. He asks hoe scientists can tell the difference between yeasts and bacteria. Select the choice that best answer his question:

1) bacteria are unicellular

2)bacteria are microscopic

3)bacteria can be pathogenic

4)bacteria are photosynthetic

5)bacteria contain peptidoglycan

Explanation / Answer

Both bacteria and yeast cells are single celled organisms.
Both bacteria and yeast are microscopic in nature and cannot be observed with naked eye.
Both bacteria and yeast can be pathogenic
Bacteria are photosynthetic whereas yeast are not and depends on carbon source for energy needs.
Bacteria contain peptidoglycan whereas yeast also contain antigens like mannoproteins which are responsible
for pathogenecity.
Hence correct answer is option 4.

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