Portion of a eukaryotic cell outside the nucleus. The cytoplasm contains all the organelles (see eukaryote). The organelles include the mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. The cytoplasm also contains the cytoskeleton and the cytosol (the fluid mass that surrounds the various organelles).

This entry comes from Encyclopædia Britannica Concise.
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