BIOLOGY Lecture Notes - Cell Membrane, Prokaryote, Melanin
Document Summary
Definition:"" animal cells are the basic structural and functional units of animal tissues and organs. It means that, unlike prokaryotic cells, animal cells have membrane-bound organelles suspended in the cytoplasm enveloped by a plasma membrane"". Another definition of animal cell:"" animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Specialized cells that formed nerves and muscles tissues impossible for plants to evolve gave these organisms mobility . Characteristics of animal cell:"" like the cells of all eukaryotes, animal cells have a nucleus and other membrane-bound organelles (see figure below). Unlike the cells of plants and fungi, animal cells lack a cell wall. It lets them take on different shapes so they can become specialized to do particular jobs"". The basic structure of a generalized animal cell certainly comprises of the plasma membrane, cytoplasm, nucleus, mitochondria and ribosomes.
