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Characteristics Of Plant Cells

Like all other organisms, plants are made up of cells, which are semi-autonomous units consisting of protoplasts surrounded by a special layer of lipids and proteins, termed the plasma membrane. Plant cells are all eukaryotic, in that their genetic material (DNA) is sequestered within a nucleus inside the cell, although some DNA also occurs inside plastids and mitochondria (see below). Plant cells have rigid cell walls external to their plasma membrane.

In addition to nuclei, plant cells contain many other small structures, which are specialized for specific functions. Many of these structures are membrane-enclosed, and are referred to as organelles (small organs).

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