1. Describe the cell theory 2. Describe the organization of biological systems 3. Compare/contrast prokaryotic & eukaryotic cells

List three things you already know about cells.

 A cell is the basic structure and functional unit of all living organisms.

Characteristics of living cells(living things )  Made of CELLS  Require ENERGY (food)  REPRODUCE(species)  Respire(breathe)  RESPOND to environment  GROW and DEVELOP  EXCHANGE materials with surrounding (water,  waste and gases)  Move

Non-Living: Atoms Molecules Macromolecules Organelle Living: Cells Tissue Organ Organ System Organism Organism

Anton van Leeuwenhoek (1674)- First to view living cell; looked at pond water under a microscope.

 2. Robert Hooke (1665) observed cork using a compound microscope and named the structures he saw “cells”.

1. Schleiden (circa 1838) All plants are made of cells! Onion skin cells

2. Schwann All animals are made of cells! Human red blood cells

3. Virchow All cells come from pre-existing cells!

 Three part theory about cells 1. All living things are made of cells 2. The cell is the basic structural and functional unit of life. (basic unit of life)  3. All cells come from pre-existing cells.

1. Have NO Nucleus 2. NO Membrane bound organelles (have no organelles surrounded by membranes) 3. They are unicellular cells (single-celled) 4. Example is bacteria

1. They have a nucleus. 2.They have membrane bound organelles(organelles that perform specific functions) 3 They are multicellular cells(many cells) 4. Examples are plants, animals, fungi, and protists

Instructions: We are going to compare and contrast prokaryotic & eukaryotic cells 1. Turn to the next available blank sheet of paper in your notebook 2. Draw a Venn Diagram (2 circles that overlap) 3. Label one circle Prokaryotic & the other Eukaryotic

Draw a line in your notes to complete your summary. To get credit it needs to be 3-5 complete sentences. You will need to complete this summary at home tonight. (This is after every day of notes. )