Cell Theory
1
All living things are
made of one or more cells.
2
2
Cells come only from existing cells.
PLANT
ANIMAL
3
4
All of an organism’s life
functions occur within cells.
Use energy
Grow
Respond
Reproduce
Cells contain the hereditary information necessary
for regulating cell functions and transmitting
information to the next generation of cells.
Diagram of an Animal Cell
Diagram of a Plant Cell
Diagram of a Cell Membrane
Osmosis
More water
Fewer dissolved substances
Greater water
concentration
outside of cell
than inside.
Water moves into cell
Cell swells up
Water molecules move in
and out at same rate.
Cell stays
same size
Water moves out of cell
Cell shrinks
Same concentration
of water outside of
cell as inside.
Lower concentration
of water outside of
cell than inside.
Less water
More dissolved substances
Low frequency
Long wavelength
X-rays
Ultraviolet
Visible light
Infrared
Microwaves
Radio waves
Electromagnetic Spectrum
High frequency
Short wavelength
Photosynthesis and Respiration
Amoeba
Euglena
Mitochondria
Nucleus
Gullet
Eye spot
Chloroplast
Flagella
Paramecium
Bacteria Cell Evolution
Bacteria Shapes
Virus
Spikes
DNA
Envelope
Protein coat