In plants, the cell wall forms as a young plant cell secretes polysaccharides onto the outer surface of its plasma membrane.

In plants, the cell wall forms as a young plant cell secretes polysaccharides onto the outer surface of its plasma membrane. Being thin and pliable, this primary wall allows the cell to enlarge and change shape. At maturity, cells in some plant tissues deposit material onto the primary wall’s inner surface. Why doesn’t this secondary wall form on the outer surface of the primary wall?

3. Which structures can you identify in the organism below? Is it prokaryotic or eukaryotic? How can you tell?

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