V

Chloroplast Centriole ribosomes

Filamentous cytoskeleton

Lysosome

FIGURE 19.01 Defining Features of Eukaryotic Cells

Vesicle

Mitochondrion DNA

Mitochondrial ribosomes

Chloroplast Centriole ribosomes

Filamentous cytoskeleton

Lysosome

FIGURE 19.01 Defining Features of Eukaryotic Cells

Eukaryotic cells have membrane bound compartments that are not found in prokaryotes. In a typical animal cell, these compartments include the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, and lysosomes. In addition a typical plant cell also has chloroplasts, which harvest light energy and convert it into ATP. Animal cells maintain their three-dimensional shape with an internal cytoskeleton composed of microtubules and microfilaments. In contrast, plant cells maintain their shape by a rigid cell wall surrounding the cytoplasm.

Eukaryotic cells are divided into compartments, including the nucleus, by membranes.

Eukaryotes are derived from the merger of two or more ancestral organisms.

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