A small organ within the cell (e.g. a chloroplast).
A subcellular structure that performs a specialized function in the cell.
Specific particles of membrane-bound organized living substances present in eukaryotic cells, such as the mitochondria; the golgi apparatus; endoplasmic reticulum; lysomomes; plastids; and vacuoles.
Membrane-surrounded structures found in eucaryotic cells; they contain enzymes and other components required for specialized cell function (e.g., ribosomes for protein synthesis, or lysosomes for enzymatic hydrolysis). Some organelles such as mitochondria and chloroplasts contain DNA and can replicate autonomously (from the rest of the cell).
A structure within a cell that is specialized for a particular function. Examples of organelles are the nucleus, endoplasmic reticulum, Golgi apparatus, lysosomes, and mitochondria.
A specialized structure within a cell that performs a distinct function. Examples of organelles are the endoplasmic reticulum, the Golgi apparatus, lysosomes, mitochondria, proteasomes, and ribosomes.
An intricate component found within a cell, distinguished by a membrane consisting of lipids and proteins, that segregates it from the rest of the cell. It serves as the site where chemical and metabolic processes occur.
One among several distinct specialized formations found within a cellular structure.