1. Aim #22: How are cells classified?
Date: November 1, 2016
Aim #22: How are cells classified?
HW:
Castle Learning due Thursday
Lab #’s 1-7????? Due Friday!!!
Quarterly Exam Thursday 11/3 (period 1), Friday 11/4 (period 5)
Do Now: Answer the following based on your knowledge of viruses:
Are viruses living? Support your answer.
Are viruses smaller or larger than bacterial cells?
How are viruses and bacteria similar?
What instrument is needed to see a virus?

2. Compare and contrast these two cars?
SIMPLE
COMPLEX

3. How do these cells compare?
SIMPLE
COMPLEX

4. 1) Cells are broken down into two main classes:
Prokaryotic
Eukaryotic

5. 2) Which types of cells were the first to appear on Earth?
Prokaryotes were probably the first life forms to
appear on earth 3.5 billion years ago
3) What were the conditions on
Earth at this time?
Hot
Little Oxygen
Abundant Lightning
4) Volcanic Activity
Harsh Early Earth

6. Miller and Urey in 1953

7. 4) Why do scientists think Prokaryotes were the first life forms on earth?
Simple Structures
Their ability to tolerate
harsh environments
Their ability to adapt
to changing environments

8. TED- How we think cells evolved?

9. 5) What are some features of prokaryotes?
** Although prokaryotes
do not have nuclei, they
do have DNA.
Prokaryotes have NO NUCLEUS!!
Have few organelles (mini-organs)
PROKARYOTES = BACTERIA

10. 6) What organisms are made up of eukaryotic cells?
Plants
Animals
Fungi
Protists
All these living things are made up of Eukaryotic
Cells

11. 7) What are some features of typical eukaryotic cells?
1) They are more complex
2) Appeared later on earth
3) They have nuclei
4) They are larger
5) Have more organelles
6) Have membrane bound
organelles

12. Cell Size and Scale

13. CELL TYPES (Review) EUKARYOTIC PROKARYOTIC HAVE ORGANELLES
HAVE NUCLEUS
MODERN CELLS
All other living things: animals, plants, fungi, protist (unicellular organisms)
PROKARYOTIC
HAVE only a few ORGANELLES
HAVE NO NUCLEUS
PRIMITIVE CELLS
Only Bacteria

14. ENDOSYMBIOTIC THEORY

15. 8) Different Cell Types
How are they similar?
How are they different?