Cell
Physiology:
Cell Structure
And
Function
2. Distinguish
between
prokaryotes and
eukaryotes.
Describe the
anatomy &
physiology of all cell
components.
Identify and
explain
the
Objectives
various cell
processes that
1.take
Explain
cell
placethe
with
theory
andtothe
regards
cell
researchers
boundaries.
contributions.
Humans have an estimated 10 trillion
cells.
There are more bacterial cells in the body
than human cells.
Your skin loses about 30000 to 40000
dead skin cells from the surface almost
every minute!
The largest known cell is an unfertilized
ostrich egg cell.
If you unraveled all your chromosomes
from all your cells, the strands would
stretch from Earth to Moon ~ 6,000
times
 1.
Robert Hooke
– 1665
– English
scientist
– Observed cork
under microscope
Cork Activity
Cork oak tree
He
said cork consisted of “great
many little boxes”.
It
reminded him of
small rooms in
which monks
lived…so he named
them . . .
CELLS
1665
Robert HOOKE
1674
Anton van
LEEUWENHOEK
*created lenses (275x)
*first to observe living
organisms
*observed bacteria and
sperm cells
(animalcules)
*father of microbiology
1838
Matthias Jakob
SCHLEIDEN
*botanist
*cell theory - all plant
parts are made of
cells
*very odd man; shot
himself in the head;
saved by a friend and
lived to study cells
1839
Theodor SCHWANN
*cell theory - all living
things are composed of
cells
*set foundation of modern
histology
1855
Rudolf Ludwig Karl VIRCHOW
*cell theory - all cells come from
preexisting cells
*father of pathology
*created a standard procedure
Life is for
autopsies
Cellular
Video from: http://ed.ted.com/lessons/the-wacky-history-of-cell-theory
1.
All living things are
composed of cells
2. Cells
3.
ALL cells come
from preexisting
cells.
are the basic
units of structure
and function in all
living things.
1.SHAPE –
• The shape of the cell is based on the
function the cell needs to perform.
Structure = Function
• Different types of cells have different
shapes.
Cell Diversity
*
2. SIZE –
Cells vary in size from
macroscopic to microscopic
Cell Size Demo: See lab handout
Size examples
Microscopic cells
Macroscopic cells
What is the largest cell???
The smallest cells = bacteria
Ostrich egg
3. INTERNAL
ORGANIZATION:
• cells contain
organelles to organize
their inside material
• Organelles= tiny organs
prokaryote
Eukaryote
Prokaryotes vs. Eukaryotes Chart
Fill in what you know with a partner. Have at
least 5 points for each and an example. You
may use your notes and textbook.