By: michael kanyushkin

a cell is: the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.

the only thing different from plant and animal cells are that plant cells have a cell wall, chloroplasts, and vacules for the picture below

the difference between the plant cell and the animal cells is that Beyond size, the main structural differences between plant and animal cells lie in a few additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles

picture of muscle cells

MUSCLE CELL: A muscle cell is a special kind of cell that makes up an organism's muscle tissues. The muscles allow independent movement and regulate biological functions such as digestion and heartbeat. These cells are further specialized into distinct types based on their location and functions. All of them control movement by contracting; while much of this activity is involuntary, the muscles that direct the skeletal system can be consciously controlled. These muscles can be trained to carry out highly precise movements and strengthened through exercise.

nerve cell

NERVE CELL: Nerve cells are the primary cells in the nervous system. They are responsible for relaying electrical messages to cells and tissues in other organ systems. This article discusses the functions and structures of nerve cells in the human body.


BONE CELL: helps bone grow with the human body


CARTILAGE: an important structural component of the body. It is a firm tissue but is softer and much more flexible than bone


SECRETORY: the act or process ofseparating, elaborating, and releasing a substancethat fulfills some function within the organism orundergoes excretion.


epithelial: any animal tissue that covers a surface, or lines acavity or the like, and that, in addition, performsany of various secretory, transporting, orregulatory functions.