1. Introducing the Cell
Video length 19:13

2. Main Cell Parts

3. Contains DNA which has all the information the cell needs to survive
(How to make proteins)
All the area inside the
cell membrane and
outside the nucleus
where processes of life occur
(plasma membrane)
Kind of a “fluid skin” around the cell
through which materials move
in and out

4. Typical Animal Cell

5. Typical Plant Cell

6. Unicellular Organisms
stentor
paramecium

7. Amoeba
Ctyoplasm

8. A Bacterium Prokaryotic cells like this bacterium have a cell membrane
and cytoplasm, but
lack a nucleus. Their
DNA (blue strands)
is not separated
from the cytoplasm.
They are not as
complex as cells
that possess a
nucleus.

9. The Cell Membrane
Show Laser Disk video of Cell Membrane with Structure and Proteins

10. Main Parts of a Cell
Plasma membrane
(cell membrane)
________________
Made of phospholipid
bilayers with
proteins embedded
in the bilayer
“Fluid mosaic model”
Controls what enters
and leaves the cell
(nutrients, wastes,
products)
“_______________”
Separates cell
from environment
(Maintains )
Gatekeeper
Homeostasis
Membrane “Fluidity” is like “party-goers” elbowing their way through a crowd

11. Main Parts of a Cell ___________________ Plasma membrane phospholipid
Controls
Made of _______________
bilayers with
_____________ embedded in the bilayer
“_____________________”
___________ what enters
and leaves the cell
(nutrients, wastes,
products)
“_________________”
Separates cell
from environment
(Maintains ____________________
protein
homeostasis
Fluid mosaic model
Gatekeeper

12. The plasma membrane is composed of a bilayer of phospholipid molecules
with proteins embedded within the bilayer
Unsaturated fatty acids make the membrane more fluid because the kinked fatty acid tails do not allow the phosopholipids to pack as closely together to become dense. Show laser disk video and plastic model.

13. Plasma Membrane

15. Cytoplasm

16. cytosol

17. cytoskeleton
Refer to page 84 in text

18. Cytoskeleton (electron micrograph)

19. ___________ Cytoplasm Cyto = cell Plasma membrane nucleus organelles
Located between
_________________
and the ___________
Plasma membrane
nucleus
_____________
organelles
_________________
cytosol
_______________
cytoskeleton
Semifluid material that
contains raw materials
for metabolism
Tiny structures that
carry out the essential
processes of life
Internal structural support
and organelle movement
Protein tubules, cables,
and filaments
Examples:
obtain energy - mitochondria
digest food - lysosomes
form proteins - ribosomes
eliminate wastes - vacuoles
transport materials - ER
Intermediate
filaments
microtubules
________________
microfilaments
_____________
___________
All made of proteins

20. The Nucleus

25. (blueprints for all cell ___________)
Nucleus
______________
Controls all cell activity
Contains ______________
DNA
Contains a _________
nucleolus
(chromatin or chromosomes)
Holds ______________ information
(blueprints for all cell ___________)
hereditary
Forms ___________
(“protein factories”)
ribosomes
proteins
Ribosomal RNA (rRNA)
and protein makes up
ribosomes

26. prokaryotic eukaryotic nucleoid bacteria archea
pro = before
Two Basic Types of Cells
eu = true
karyote = kernel
prokaryotic
eukaryotic
_________________
_________________
Cells lack a ____________ &
membrane-bound __________
nucleus
Cells contain a true nucleus &
membrane-bound organelles
organelles
______ is located in the cytoplasm
in a part of the cell called the
“_________________”
DNA
________ is separated from the
cytoplasm by a _____________
DNA
Nuclear envelope
nucleoid
___________ , ___________
___________ , & __________
have eukaryotic cells
___________ & ___________ are the
only prokaryotic cells
bacteria
archea
plants
animals
fungi
protists

27. (DNA)

28. Eukaryotic Cell Structure (Animal)

29. Eukaryotic Cell Structure (Plant)

30. Cells Are Like Factories
Video length – 1:00

31. The Characteristics of the Cell
Video length-1:22