1. Warm-Up: 4 minutes Who first named a “cell” by looking at cork?
Work with your partner to answer the following questions (but each of you write down in your spiral)
Who first named a “cell” by looking at cork?
What are the 3 parts to the cell theory?

2. Story time: Cells
In 1665 Robert Hooke used a microscope to look at a thin slice of cork

3. What Hooke Saw
Under the microscope, the cork seemed to be made of empty chambers
Hooke called these chambers “cells”

4. The Cell Theory All living things are made up of cells
- Unicellular (uni = 1)
- Multicellular (multi = 1+)
Cells are the most basic unit of life
New cells are produced from existing cells

5. Make observations about each picture.
Which could be used to describe “complex?”
Which could be used to describe “simple?”

6. Life can be divided into 2 groups based on complexity
Life can be divided into 2 groups based on complexity. Decide if the organisms below are more complex like the house or more simple like the shack.
Borrelia burgdoreri
Loxodonta africana Staphylococcus aureus
Homo sapiens Listeria monocytogenes Sequoiadendron giganteum

7. There are 2 types of cells
EUKARYOTE
PROKARYOTE

8. Objective
To compare and contrast a eukaryotic cell to a prokaryotic cell in a Venn Diagram. Read the passages about both types of cells. Underline/highlight/make notes of the important characteristics of each to use when you make your Venn Diagram.

9. What does Prokaryote (pro-KAR-ee-othts) mean?
Pro = before karyon = nucleus
Do not contain a nucleus; DNA found in the cytoplasm

10. Example of Prokaryote: Bacteria
There are many different types of bacteria
Some can cause disease
Some recycle important natural resources through decomposition
Some bacteria is used to make food, such as milk products

11. Actual Prokaryotic Cells

12. What does Eukaryotes (yoo-KAR-ee-ohts) mean?
Eu = true
karyon = nucleus
Does contain a nucleus (where DNA is found)
Has membrane-bound organelles
Examples: Animals, plants, fungi, and protists

13. Organelles Known as “little organs”
Definition: Specialized structures with individualized jobs to carry out the functions of the eukaryote cell.
EXAMPLE:
Nucleus
Cell Membrane
Cytosplasm

14. Prokaryotes Eukaryotes
COMPLETE THE VENN DIAGRAM BELOW!
Prokaryotes Eukaryotes
Prokaryotes Both Eukaryotes
Larger
Smaller
type of cell
Include bacteria
Found in humans
ContainDNA
Lack nucleus
Nucleus
microscopic
Lack organelles
Contain Organelles
outer membrane
Complex
Mostly unicellular organisms
Simple
Mostly mutlicellular organisms

15. Exit Ticket
Answer the following questions by listing either prokaryote or eukaryote:
Which type of cell does NOT contain a nucleus?
Which type of cell is larger?
Which type of cell do bacteria have?
Which type of cell has complex organelles?