Cell Structure & Functions
1. Define the parts of the cell
The Levels of Organization in the Body
1.Chemical (for example hemoglobin in the blood)
2.Cellular
3.Tissue (for example connective tissue which help to arranged and
bring other organs together and support the structures of the body)
4. Organ Level When different types of tissues organize
together, they form an organ
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5.System Level When different organs come together, they
form the higher label which is system level
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Notice: Organs have to be healthy so that the system can do its works
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Define the Cell
Cell is the smallest functional unit of the body
It is described as a functional unit because it reproduced itself i.e., cells have
limited span life so they need to replicate and divide into new cells before they
die
There are two type of cells that make up all living things
Eu karyotic cells
Have nucleus and cell/Plasma membrane
Enclosed by that membrane is the
cytoplasm
Prokaryotic cells
like bacteria, have no nucleus
Functions of the Cell
1.It obtains nutrients from the surrounding environment
2.It maintains its shape and integrity
3.It can replicate
4.It disposes wastes
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Parts of the Cell
