Warm Up 2.1 Copy Questions and answer as video plays Label the following with a P (prokaryote) or E (eukaryote). ______ Animal Cell ______ Plant Cell ______ Bacterial Cell ______ Fungus Cell What are the following statements referring to? Eukaryote rhymes with… DO! Prokaryote rhymes with…NO

Cell Theory and Prokaryote vs. Eukaryote

What is a Cell? Cell – Basic unit of living things. Organisms are either: Unicellular – made of one cell such as bacteria and amoebas. OR Multicellular – made of many cells such as plants and animals.

Scientists to Remember Robert Hooke (1665) – Observed “cells” in cork

Anton van Leeuwenhoek (1674) Father of Microscopy Saw tiny living things in pond water.

Cell Theory 1. Cells are the basic unit of life. Confirmed discoveries that all scientists believe to be true about cells: 1. Cells are the basic unit of life. 2. All living things are made of cells. 3. New cells are produced from existing cells.

The Discovery of Cells Prokaryotic before nucleus Eukaryotic true

Eukaryotes: Has a nucleus with a nuclear envelope Bigger and more complex than prokaryotes Have membrane bound Organelles (golgi, ER, lysosomes…etc) DNA – double-stranded and forms chromosomes (highly organized) Can be uni- OR multicellular organisms Ex: animals, plants, fungi

Prokaryotes: NO nucleus NO membrane bound organelles (just ribosomes) ALL are unicellular Smaller than eukaryotic cells Forerunner to eukaryotic cells (smaller and more simple) DNA – single strand and circular Ex: ALL Bacteria 10

Similarities: Contain all four biomolecules Have ribosomes Have DNA (lipids, carbs, proteins, and nucleic acids) Have ribosomes Have DNA Similar Metabolism Can be unicellular Have cell/plasma membranes or cell wall

Eukaryote VS. Prokaryote Picture

Use rest of class to finish vocab! Homework Reminder: Vocabulary is due TOMORROW! Vocab Quiz Friday Use rest of class to finish vocab!