Refer to the scenario below, and then answer the following question(s).
As part of your field biology independent study, you visit a small lake with an extremely high salt concentration. Searching with nets and other sampling devices, you find no fish, plants, algae, or any visible signs of life in the lake. Still, you decide to take a few samples of the water back to the lab. You find the sample teeming with very small cells, hundreds of times smaller than a typical human cell. These cells have cell walls, which you analyze chemically and find they are not made of peptidoglycan or cellulose.
-Based upon the chemical experiments you performed,how would you classify these life-forms?

Question

Quizplus · Accepted Answer

The fact that the cell wall is not made of either peptidoglycan (found in bacteria) or cellulose (found in plants and some protists) indicates that these cells are not bacteria or protists. Fungi also have cell walls, but they are made of chitin, which is chemically distinct from the cell walls of these cells. Archaea, on the other hand, have cell walls made of a variety of different substances, including some unique to this group, so it is possible that these small cells are archaea.

Refer to the Scenario Below, and Then Answer the Following