Download Cell Structures Notes PPT

The Cell Theory
• The cell is the basic unit of structure and
function (a.k.a. – life)
• All living things are made up of 1 or more cells
• Cells come from other, preexisting cells (a.k.a.
– reproduction)
What is a cell?
• It is the smallest unit of life that
carries out life functions
Animal Cell
Plant Cell
What’s Inside?
• Organelles
– tiny structures within a cell that perform
specific jobs to keep the cell alive
Cytoplasm - gel-like material inside cells
Cytoplasm
Cell Membrane - protects cell and gives it shape
and controls what enters and leaves the cell.
Cell
Membrane
Nucleus - directs cell activities (brain)
Nucleus
Endoplasmic Reticulum (ER) - movement of
materials throughout cell
ER
Ribosome - makes proteins
Ribosomes
Mitochondria - the powerhouse of the cell
(converts food into energy for the cell)
Mitochondria
Chromatin/Chromosomes (DNA) - contains
genetic information (inside the nucleus)
Chromatin
Chloroplast - takes energy from the sun and
makes food for the PLANT cell (not found in
Animal Cells)
Chloroplast
Cell Wall - supports and protects PLANT cells
(not found in animal cells)
Cell Wall
Vacuole - storage of food and water
Vacuole
Golgi Body - packages and moves proteins
Golgi
Body
Lysosome - digests wastes
Lysosome