HAPPY “TACKY” FRIDAY Bellwork: Write “Egg Lab Day 3 and Notecard Check”, and follow directions below. Day 3 Procedure… 1.Turn in Page 30 (Cell Analogy) 2.Have out your Notecard Sticker Sheet. Lay out your notecards (definition side up) on your desk 5x5 (5 rows, 5 columns) + 1 – “Cell” needs to be top left card. 3.Using your hands, carefully remove your egg from the distilled water and use a paper towel to pat it dry. 4.On your Cornell notes, record your observations of your egg in the water column. Draw a diagram. 5.Mass (weigh) your egg on a scale and record your results on your data table. Enter the weight under the “Final Mass” for WATER. Subtract the “Final Mass” from the “Original Mass” in the WATER row. Place this number in the “Difference in Mass” column in the WATER row. 6.Throw away your egg (pop it over the BIG trashcan) and cup, clean up your work area, and put away any lab equipment you were using. 7.Fill in Cornell Notes “Summary” – must be 36 words and include the following words. Cell Membrane Movement of Water Diffusion Shrink Expand 8. Fill in Cornell Notes “Questions” – L1: Define…, L2: Sort…, L3: Evaluate…

Egg LabPage 33 Essential Question: Question ColumnEgg in VinegarEgg in SyrupEgg in Water L1 – L2 – L3 – Prediction: Hypothesis: Observation: Diagram: Prediction: Hypothesis: Observation: Diagram: Prediction: Hypothesis: Observation: Diagram: Summary - How do molecules move across the cell membrane? TODAY – DONE DONE TODAY

Unit 2 – Cells/Molecule Transport Definitions Due Friday (10/2/15) All Parts Due Tuesday (10/6/15) 1.Cell 2.Nucleus 3.Prokaryote 4.Eukaryote 5.Endosymbiotic Theory 6.Cell Membrane 7.Permeable 8.Impermeable 9.Semi-Permeable 10.Organelle 11.Chloroplast 12.Hypotonic 13.Isotonic 14.Hypertonic 15.Osmosis 16.Concentration 17.Diffusion 18.Active Transport 19.Facilitated Diffusion 20.Equilibrium 21.Mitochondria 22.Endoplasmic Reticulum 23.Ribosomes 24.Golgi Bodies 25.Lysosome 26.Cytoplasm

Essential Question How does water move across a selectively permeable membrane? Standard B.4B – Investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis of new molecules PG 34

Diffusion No Energy Low High Concentration Gradient

Diffusion of water through a selectively permeable membrane is called osmosis.

When two solutions have the same concentration of solute they are said to be isotonic. Isotonic means “same strength”. Draw This

A solution that has a higher concentration of solute is said to be hypertonic. Hypertonic means “above strength”. Draw This

A solution that has a lower concentration of solute is said to be hypotonic. Hypotonic means “below strength”. Draw This

Molecule Transport Foldable Lipid Heads– Green Lipid Tails – Blue Proteins- Purple PG 35

HW: Osmosis Workshe et PG 36