👉 In biology, a monoplaculate is a type of plant cell that lacks one or more plastids. This can be due to a genetic defect or an internal malfunction in the cell wall. Monoplaculates are commonly found in plants like lettuce and alfalfa, as well as certain mushrooms and some types of ferns. Monoplaculates lack the structure and function of a chloroplast, which is responsible for photosynthesis. Instead, they rely on their own internal organelles to