👉 In biology, a heterosporous organism is one that does not have a cell wall. It can be either aerobic or anaerobic, and it has a different metabolism from aerobic organisms. This means that its cells do not have a membrane-bound cytoplasm, but rather contain organelles such as mitochondria, ribosomes, and chloroplasts. The cell wall of heterosporous organisms is absent, which allows them to grow in the absence of oxygen.