Cell membrane

Eukaryotic cells are a fundamental unit of life characterized by a complex structure. They contain a defined nucleus enclosed in a membrane, along with various organelles, such as mitochondria and the endoplasmic reticulum. These cells are found in plants, animals, fungi, and protists, and their compartmentalized structure allows for specialized functions. Eukaryotic cells are integral to multicellular organisms and exhibit a level of complexity that distinguishes them from prokaryotic cells.