CELLS CELL THEORY & PRO. vs EUK.

PAP Biology

CELL THEORY

2

3

Cells are the basic unit of life

All cells come from other cells

All living things are made of cells

1

The wacky history of cell theory - Lauren Royal-Woods

Amazing Microscopic HD Video! Paramecium Feeding!!

Amoeba

UNICELLULAR ORGANISMS Bacterial growth under the microscope, Rate My Science

Bacteria

MULTICELLULAR ORGANISMS Hydra organism defensive contraction Cyclosis / Cytoplasmic streaming in plant cells (Elodea) - DIC microscope/ 1250x

Hydra

Plant

Reproduction

Made of Cells

Growth

Respiration

Response to stimuli

Metabolism

All living things are made of cells

1 One of the "Characteristics ofLife" is that life is made ofcells.

Cells are the basic unit of life

2 All organisms have at leastone cell

3

All cells come from other cells Cell Division Time lapse

Cellular division throughmeiosis or mitosis is requiredfor reproduction.

PROKARYOTIC VS EUKARYOTIC

Eukaryotic

Prokaryotic

Prokaryotic

no membrane-bound nucleus

pro = "before"

no membrane-bound organelles

karyon = "kernel"

ex: bacteria, arechea

nucleoid region (circular DNA)

ALWAYS unicellular

Eukaryotic

membrane-bound nucleus

membrane-bound organelles

rod-shaped chromosomes

eu = "true"

karyon = "kernel"

unicellular OR multicellular

ex: plants, animals, fungi, protists

ALL cellshave thesefeatures!

CELL MEMBRANE

CYTOPLASM

RIBOSOMES

GENETIC MATERIAL

Eukaryotic 

Prokaryotic

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