The Human Cell 101 - Simple to understand
The Human Cell 101
Differing in size, shape, and function, the cell is the smallest functional unit
of tissues and organs -
Each cell is somewhat self-contained and
It can take in nutrients, convert these
nutrients into energy, carry out specialized functions, and reproduce
Human cells have a surrounding protective membrane -
salty, watery cytoplasm in which
is floating a set of membrane-bound
organelles ("little organs"), which perform a number of vital functions
for the cell.
nucleus houses DNA - the cell’s genetic blueprint containing the building
instructions for various protein molecules, such as enzymes;
is the cell’s “Power Plant”;
- is the
transport network for active molecules;
site of protein synthesis
- is the cell’s central delivery system and a site for
protein processing, packaging, and transport.
enzymes that break down waste materials and cellular debris
Centriole – two per cell; help
with mitosis and meisosis when cell divides.