1. HAPPY MONDAY. Bellwork: 1
HAPPY MONDAY! Bellwork: 1. Turn in PAGE 36 (Osmosis Worksheet) and PAGE 33 (Egg Lab) 2. Briefly sketch this experimental set-up In 34 words, explain why this phenomenon happens.

2. Unit 2 – Cells/Molecule Transport Definitions Due Friday (10/2/15) All Parts Due Tuesday (10/6/15)
Chloroplast
Mitochondria
Nucleus
Hypotonic
Endoplasmic Reticulum
Prokaryote
Isotonic
Ribosomes
Eukaryote
Hypertonic
Golgi Bodies
Endosymbiotic Theory
Osmosis
Lysosome
Cell Membrane
Concentration
Cytoplasm
Permeable
Diffusion
Impermeable
Active Transport
Semi-Permeable
Facilitated Diffusion
Organelle
Equilibrium

3. Egg Lab Quiz

4. In what other manner do materials move across a cell membrane?
Essential Question
In what other manner do materials move across a cell membrane?
Standard
B.4B – Investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis of new molecules
PG 34

5. Recap: Osmosis and diffusion do not use energy.

6. The function of protein channels in the cell membrane is to make it easy for certain molecules to cross the membrane. This process is known as facilitated diffusion. (help!)

7. Facilitated diffusion does not require energy
Facilitated diffusion does not require energy. Particles still move from an area of high concentration to an area of low concentration.

8. Concentration Gradient
Facilitated Diffusion
High
No Energy
Concentration Gradient
Low

9. Sometimes cells move materials against a concentration difference
Sometimes cells move materials against a concentration difference. This process is known as active transport.

10. This process requires energy
This process requires energy. Active transport is carried out by transport proteins found in the membrane.

11. NEEDS ENERGY and PROTEIN Concentration Gradient
Active Transport
High
NEEDS ENERGY and PROTEIN
Concentration Gradient
Low

12. Endocytosis is the process of taking large amounts of material into the cell by means of enfoldings of the cell membrane.

13. Exocytosis forces contents out of a cell when a vacuole fuses with the cell membrane.

14. HW: Osmosis Practice Problems
PG 37
HW: Osmosis Practice Problems

15. Molecule Transport Foldable
PG 35
Molecule Transport Foldable
Step 1 – Color (Lipid Heads– Green, Lipid Tails – Blue, Proteins- Purple)
Step 2 - With the Cell Membrane facing up, fold your paper in half (Hot Dog Style)
Step 3 - Cut 3 slits on the segments ONLY on the half of the paper facing you.
Step 4 - On the half facing up – Separate into 4 Segments and write the Diffusion, Osmosis, Facilitated Diffusion and Active Transport (in that order) – Create concrete spellings.

16. Direction of particles
Diffusion, Osmosis, Facilitated Diffusion, Active Transport
Does it use energy?
What’s moving? Water OR Solutes
Is it moving from High to Low OR Low to High?
Does it move through the Phospholipid Bilayer OR Protein Channel?
Direction of particles
ENERGY
SUGAR
WATER