By sharing this link, I acknowledge that I have read and understand the Terms and Conditions.
50.1 MB (50.0 MB compressed)
3751 x 4670 pixels
31.8 x 39.6 cm ⏐ 12.5 x 15.6 in (300dpi)
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Spirogyra algae. Light micrograph of filaments from a Spirogyra sp. alga, showing its spiralling bands of chloroplasts (green). Central nuclei (round) are also seen in each cell. Chloroplasts are the site of photosynthesis, the process of obtaining energy from sunlight. Spirogyra is a common freshwater alga. In favourable conditions it can grow rapidly, forming blooms that deprive other aquatic life of nutrients. Magnification: x13 when printed at 10 centimetres wide.
Model release not required. Property release not required.