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hjlf
3 years ago
12

Different classes

Biology
1 answer:
Sidana [21]3 years ago
8 0
Your answer would be a
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The function of the S layer is unclear. The fact that the S layer is found in cultures isolated from natural sources but is typi
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Answer:

The correct answer is "the S layer may play a role in protecting cells from viruses and predatory bacteria found in nature but not in laboratory cultures".

Explanation:

The S-layer (surface layer) is a part of the cell's envelope comprised of of identical proteins or glycoproteins that could be found in archaes and some bacterias in nature. The function of the S-layer is unknown, however the fact that is only seen in nature suggest that it may play a role in protecting cells from viruses and predatory bacteria found in nature but not in laboratory cultures. It is likely that archaes and bacteria synthesize the S-layer when they recognize viruses and predatory bacteria in nature, the S-layer is not synthesized in laboratory cultures because these pathogens are not present.

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