👉 The term "phytoplasm" refers to the cellular components of the Earth's water environment, specifically the cells found in the oceans and seas. These cells are made up of a variety of tiny organisms called microorganisms that play a crucial role in the food chain. Phytoplankton, which is the largest group of phytoplasm, is responsible for most of the photosynthesis that occurs on Earth and plays a vital role in nutrient cycling through the ocean. Phytoplankton are unic