1. Definition of Cell
A cell is the smallest unit that is capable of performing life functions.

2. --Prokaryotic Cells --Eukaryotic Cells
Two Types of Cells
--Prokaryotic Cells
--Eukaryotic Cells

3. Prokaryotic VS Eukaryotic Directions:
Observe the pictures of the Prokaryotic and Eukaryotic cells.
Compare and Contrast the two pictures
List similarities and differences in the Venn Diagram

4. Prokaryotic VS Eukaryotic
Use the following information to answer the questions and complete the Venn Diagram

5. Origin of the name: pro- = before Karyon = nucleus Prokaryotic Cells
Cellular Structure and Function
Prokaryotic Cells
Origin of the name:
pro- = before
Karyon = nucleus
Thought to be the first cells on earth, before any cells with a nucleus.
Prokaryotes lack a nucleus.
Memorization Tip: “Pro-No” because there is no nucleus.

6. Smaller compared to other cells Simple structure
Cellular Structure and Function
Prokaryotic Cells Cont’d
Smaller compared to other cells
Simple structure
Contain no membrane-bound organelles
All types of bacteria are prokaryotic
All are unicellular
A Typical Prokaryote

7. “Euk-Nuc” because nucleus is present.
Cellular Structure and Function
Eukaryotic Cells
Origin of the name
eu- = true
karyon = nucleus
Contain a true nucleus
Memorization Tip:
“Euk-Nuc” because nucleus is present.

8. Larger compared to other cells
Cellular Structure and Function
Eukaryotic Cell
Larger compared to other cells
Complex structure
Contains membrane-bound organelles
Includes all plant, animal, fungus, & protist cells
Unicellular or multicellular
REMEMBER YOU ARE EUKARYOTIC!

9. Membrane-Bound Organelle
Cellular Structure and Function
Membrane-Bound Organelles
Surrounded by a single or double barrier
Includes:
Nucleus
Mitochondria
Chloroplasts
Endoplasmic Reticulum
Golgi Apparatus
Lysosomes
Example of a
Membrane-Bound Organelle

10. Are Viruses Living? (What do you think?)
Are they cells?
Do they use energy to grow?
Do they use energy to respond to their surroundings?
Do they maintain homeostasis?

11. Who’s Hosting?
The only way viruses can survive is through a host cell.
Viruses need a host to multiply
Host-an organism that provides energy
Examples: people, birds, raccoon, tomatoes, potatoes