The first definitive description of a chloroplast (Chlorophyllkörnen, "grain of chlorophyll") was given by Hugo von Mohl in 1837 as discrete bodies within the green plant cell. In 1883, … See more

Chloroplasts, like other types of plastid, contain a genome separate from that in the cell nucleus. The existence of chloroplast… See more

Guard cell chloroplasts
Unlike most epidermal cells, the guard cells of plant stomata contain relatively well-developed chloroplasts. However, exactly what they do is … See more

Chloroplasts are one of many types of organelles in the plant cell. They are considered to have evolved from endosymbiotic cyanobacteria. Mitochondria are… See more

In land plants, chloroplasts are generally lens-shaped, 3–10 μm in diameter and 1–3 μm thick. Corn seedling chloroplasts are ≈20 µm in volume. … See more

Distribution in a plant
Not all cells in a multicellular plant contain chloroplasts. All green parts of a plant contain… See more

Chloroplasts are a special type of a plant cell organelle called a plastid, though the two terms are sometimes used interchangeably. … See more