5 minutes left! Catalyst Take out your homework 1.What 3 cell parts are found in ALL cells? 2. According to the cell theory, where do all cells come from? 3. What kind of organisms are the smallest? 5 minutes left!
Catalyst Take out your homework 1.What 3 cell parts are found in ALL cells? 2. According to the cell theory, where do all cells come from? 3. What kind of organism is the smallest? 3 minutes left!
Catalyst Take out your homework 1.What 3 cell parts are found in ALL cells? 2. According to the cell theory, where do all cells come from? 3. What kind of organism is the smallest? 2 minutes left!
Catalyst Take out your homework 1.What 3 cell parts are found in ALL cells? 2. According to the cell theory, where do all cells come from? 3. What kind of organism is the smallest? 1 minutes left!
Catalyst Take out your homework 1.What 3 cell parts are found in ALL cells? 2. According to the cell theory, where do all cells come from? 3. What kind of organism is the smallest? bacteria Cell/plasma membrane, cytoplasm, and ribosomes According to the cell theory, all cells come from preexisting cells. CLASS TIME
Today’s Objective SWBAT differentiate between prokaryotic and eukaryotic cells SWBAT give examples of prokaryotic and eukaryotic organisms
The Two Types of Cells As microscopes got more powerful, scientists started look at the parts inside cells. An organelle is a small, specialized structure inside a cell.
The Two Types of Cells All cells can be divided into two categories: Pro= before Prokaryotic cells came BEFORE eukaryotic cells Eukaryotic Cells Prokaryotic Cells
Prokaryotic cells (bacteria only) (Dots)
Prokaryotic Cells All bacteria are always unicellular such as E. coli Do NOT have (lacks) a nucleus or any other large organelles. DNA floats around in the cytoplasm Pro= Before. Existed before the nucleus. Much smaller and simpler than eukaryotic cells.
Eukaryotic cells (every other organism)
Think: Why is this important???? Eukaryotic cells Eu- = TRUE. They have a true nucleus The nucleus contains DNA and therefore controls the cell. Found in all animals, plants, and fungi as well as unicellular algae and protists such as an Amoeba. Contain membrane-bound organelles, which allow different parts of the cell to do different functions. Think: Why is this important????
Eukaryotes Prokaryotes DNA Eukaryotes Prokaryotes
Independent Practice
Guided Practice – Venn Diagram Prokaryotes Both Eukaryotes Include Lack nucleus Nucleus microscopic Lack organelles Contain Organelles outer membrane Complex Mostly unicellular organisms Simple Mostly mutlicellular organisms
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