1. Introduction to the Cell

2. Notes: Cell basics
Life – it’s all about the cell

3. Top ten facts about the cell…

4. #10: Cells are too small to be seen without magnification
#9: Eukaryotic cells are 10 times larger than prokaryotic cells, simply because they have a nucleus
#8: Prokaryotic single-celled organisms were the earliest forms of life on earth
#7: Cells have varying life spans

5. #4: When you donate blood, you give up 5.4 billion cells
#3: There are 30 billion cells in your brain
#2: Cells commit suicide
#6: Cells contain genetic material
#5: Cells contain structures called organelles which carry out specific functions

6. #1: There are more bacterial cells in the body than human cells

7. 2 Types of Cells 1) Prokaryotic cells pro = before kary = nucleus
DNA
1) Prokaryotic cells
pro = before
kary = nucleus
Lack membrane-bound organelles and nucleus
DO contain small ribosomes

8. 2 Types of Cells 1) Prokaryotic cells
DNA
1) Prokaryotic cells
ALL prokaryotic cells are bacteria
Domains Eubacteria & Archaebacteria

9. 2 Types of Cells 2) Eukaryotic cells eu = true kary = nucleus
Domain Eukarya
All other organisms

11. Quick check – Why is this cell eukaryotic?
Because it has a cell wall.
Because it contains DNA.
Because it has membrane-bound organelles.
Because it does not have DNA.
Nucleus
Nucleolus
Chromosomes
Organelles
Plasma membrane

12. Label the following images as prokaryotic (P) or eukaryotic (E) cells:

13. Cell Specialization
Cells in multicellular organisms are specialized to perform particular functions

14. Levels of organization
ATOMS
BIOMOLECULES
ORGANELLES
**CELLS**
TISSUE
ORGAN
ORGAN SYSTEM
ORGANISM

15. List the 8 Levels of Organization
Turn to a Partner
List the 8 Levels of Organization

16. Cornell Summary & Study Questions