Closterium acerosum is a green algae species characterized by elongated cells that are typically straight or slightly curved, ranging in length from 200 to 500 micrometers. Each cell contains prominent band-shaped chloroplasts that extend longitudinally along its body, crucial for photosynthesis. Enclosed within a thin, transparent cellulose cell wall, Closterium acerosum reproduces both asexually through binary fission and sexually via gamete production and zygote formation. It inhabits freshwater environments such as ponds, lakes, and slow-moving streams, where it plays a significant ecological role in nutrient cycling and serves as a primary producer. The algae’s ability to move using a gliding motion facilitated by a gelatinous sheath enhances its adaptability within aquatic habitats.