Question and answer
cell wall
Noun: A rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.
Original conversation
User: In plant, algae, fungi, and most bacteria cells, there is a rigid layer that surrounds the cell membrane and gives protection, support, and shape to the cell. What is this layer called?

User: cell wall

Weegy: Noun: A rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.
DEANA|Points 1001|

User: wich characteristic do scientis first consider when classifying cells as wither eukaryotic or prokaryotic

Weegy: Features of Prokaryotes Pro = “before”, karyon = “nucleus” Prokaryotes, the first living organisms to evolve, are primarily distinguished by the fact that they lack a membrane-bound nucleus. [ In fact, the only membrane in prokaryotic cells is the plasma membrane- the outer boundary of the cell itself. Their genetic material is naked within the cytoplasm, ribosomes their only type of organelle. Features of Eukaryotes Eu = “true”, karyon = “nucleus” The most noticeable feature that differentiates these more complex cells from prokaryotes is the presence of a nucleus, a double membrane-bound control center separating the genetic material, DNA (deoxyribonucleic acid), from the rest of the cell. Read more at Suite101: Prokaryotic and Eukaryotic Cells: The Difference between Prokaryotes and Eukaryotes | Suite101.com ]
Expert answered|BRAINSTORM|Points 2350|

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Asked 5/1/2012 5:29:06 PM
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