Download Cell Theory and Basic Structures - CGW-Life-Science

Cornell Notes: Cell Theory and Basic Structures
Questions
What are the 3
main ideas of Cell
Theory?
What is the
difference between
structure and
function?
Three Basic Parts of Cell Theory
1. All living things are made of one or more cells.
a. Unicellular
b. Multicellular
2. Cells are the basic unit of structure and function in living things.
a. Structure: how it’s made
b. Function: how it works
3. All cells come from pre-existing cells (cells make cells).
a. Cell division = mitosis
What is mitosis?
What are three
things that all cells
have?
What are three
differences
between
eukaryotes and
prokaryotes?
Basic Cell Structures
All cells have:
Cell membrane that surrounds them (skin) .
Cytoplasm inside them (blood)
Genetic Material (DNA) that tell the cell what to do (“instructions”)
Two Main Types of Cells
Eukaryotes “true nucleus”
DNA contained in a nucleus
Example = plant cells and animal cells
Complex cells with organelles and specialization
Usually at least 10X bigger than prokaryotes.
Prokaryotes “before nucleus”
No nucleus, DNA floats around in cytoplasm
example = bacteria
Simpler or “more primitive” cells
Smaller than Eukaryotes
Summary