What background knowledge do you have about cells? CLASS START What background knowledge do you have about cells? What background knowledge do you have about microscopes?

Type of particle of an atom Charge Mass Location Proton Neutron Electron

Objective SWL to compare and contrast the microscopes, prokaryotes and eukaryotes, and be able to give the parts to the cell theory.

Chp. 7.1 (Pg. 182-186) Cell Cell Theory 1. 2. 3.

2 Types of Microscopes 1. Compound Light: 2. Electron:

Robert Hooke: Anton Van Leeuwehoek: Mathias Schleiden: Page 182-183 and Timeline Robert Hooke: Anton Van Leeuwehoek: Mathias Schleiden: Theodor Schwann: Rudolph Virchow:

Domains Prokaryotes Eukaryotes Archaea

Make a Venn Diagram of Prokaryotes and Eukaryotes

CLASS START #1-6. Page 186 7. Name 2 scientist who worked on the cell theory. 8. Can you list the 3 steps to the cell theory without looking?

Objective SWL the function and composition of the cell membrane and be able to briefly describe how it looks.

Selectively Permeable: Phospholipid Bilayer: Transport Proteins: Chapter 7.2 (Pages 187-190) Organelle: Plasma Membrane: Selectively Permeable: Phospholipid Bilayer: Transport Proteins: Fluid Mosaic Model:

CLASS START 1. Who was Robert Hooke? 2. Who was Anton van Leeuwenhoek? 3. What was the most important invention in science? 4. What metric unit would you use to measure a bacteria? 5. Name the 2 main types of microscopes and compare them.

Objective SWL the functions and structures of a cell and be able to identify and label organelles .

This part of chapter will be done on study sheet Chp. 7.3 (Pg.191-200) This part of chapter will be done on study sheet

CLASS START

Types of Cell Movement 1. Diffusion 2. Osmosis 3. Active Transport

DIFFUSION Movement from a high concentration to a low concentration. Crowded to less crowded Bumping and bouncing Constant motion Movement without energy

OSMOSIS Diffusion of WATER through a selectively permeable membrane. Water moving from a concentrated to a less concentrated. Water moving from a crowded to less crowded Water tends to move across a membrane until equilibrium is reached.

Solutions Isotonic: the solutions are the same strength on both sides of the membrane. Hypertonic : When the solution is above strength. Hypotonic: when the solution is below strength.

FACILITATED DIFFUSION When the cell membrane helps or facilitates the movement of molecules (especially GLUCOSE) to cross the membrane.

ACTIVE TRANSPORT Movement of molecules from a low concentration to a high concentration. Movement from less crowded to crowded. They move this by use of a carrier molecule. Common in plants

MOVEMENTS OF THE CELL MEMBRANE Endocytosis: process of taking in material by in-foldings (pockets) of the cell membrane. 2 Types of endocytosis: Phagocytosis Pinocytosis

PHAGOSCYTOSIS Phagocytosis: Extension of a cytoplasm that surrounds a particle and sends it to the food vacuole.

PINOCYTOSIS Pinocytosis: tiny pockets form and along the cell membrane, fill with liquid, and pinch off to form vacuoles within the cell.

MOVEMENTS OF THE CELL MEMBRANE Exocytosis: the membrane of a vacuole surrounding the material fuses with the cell membrane, forcing the contents of the cell out.

Class Start 1. Name the 3 parts to the cell theory. 2. Organisms who lack cell nuclei and organelles are called _____________. 3. Organisms who have nuclei and organelles are called__________. 4. Look at page 191 and define a cytoskeleton. Make a table of the function and description of the 2 main parts. STRUCTURE DESCRIPTION FUNCTION

Levels of Organization Review Vocabulary Unicellular Multicellular Cell specialization Levels of Organization

CLASS START PAGE 194 QUESTIONS 1-2. 3. What are the 3 main types of cell movement and write or draw them. 4. Name the 2 types of membranes and tell how they are different.

Page 211: 1-6;11-15 Page 212: 21-27; 33-35 Page 213: 36-37; 46-47 CLASS START Page 211: 1-6;11-15 Page 212: 21-27; 33-35 Page 213: 36-37; 46-47 Page 214-215