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Cells
 The cell is the basic unit of
structure & function of ALL
livings things.
 A cell is microscopic is
size.
Cell Membrane
 ALL cells are surrounded by the
cell membrane.
 Also called a plasma
membrane.
 Semi-permeable
 Made of protein & lipids
arranged in a double layer…
Nucleus
 The MOST important organelle!
 2 vital functions


To control the activities of the cell
To promote cell division
Nuclear Membrane
 The nuclear membrane surrounds the
nucleus and separates the nucleus from
the cytoplasm.
Cytoplasm
 The liquid environment of the cell.
 The cytoplasm contains the organelles of
the cell.
Endoplasmic Reticulum
 This is a fine network of tubular
structures.
 Main purpose is
TRANSPORTATION!
 Two types


Smooth
Rough- contains proteins
Mitochondria
 Most of the cell’s energy comes from the
“MIGHTY” mitochondria
 The “MIGHTY” mitochondria converts
stored energy into ATP
Golgi Apparatus
 Looks like a stack of pancakes
 Main purpose is storing & packaging
“garbage”
Lysosomes
 “Suicide Bags”, EATERS, urrghhh
 Lysis- Lysol ???????
 Helps to digest old, worn out cells