1/13/16 T.O.C: What Are Cells?T.O.C: Do Now: SUMMATIVE: Write a procedure for testing the Question: “What is the effect of water temperature on the amount of oxygen dissolved in water”. Then: Copy Learning Standard and Target 9-11 LS1D The cell is surrounded by a membrane that separates the interior of the cell from the outside world and determines which substances may enter and which may leave the cell. Learning Target: I can Describe the structure of the cell membrane and how the membrane regulates the flow of materials into and out of the cell.

Oxygen Testing Tools

DRAW A PICTURE OF A CELL LABEL THE CELL MEMBRANE

Homework: Define the following: Diffusion Concentration Gradient Osmosis Vacuole Passive Transport Active Transport Selectively Permeable

Experimental Design Hypothesis Manipulated Variable (Experimental Set-ups) Responding Variable Controlled Variables Control Set up

These are the goals for your unit on homeostasis Understand that all organisms have an internal and external environment and are affected by interactions between these environments. Understand that organisms must actively maintain a balance in their internal environment. Understand that the interactions of systems that adjust the internal environment result in a dynamic balance called homeostasis Recognize that stresses may overwhelm the ability of organisms to maintain their internal environment

Writing a Testable Question Define Qualitative and Quantitative Write 3 qualitative observations about the egg Write 3 quantitative observations about the egg

Movement through Membranes Animations

Experimental Design What is the effect of changing the external environment on the internal environment? Hypothesis Manipulated Variable (Experimental Set-ups) Responding Variable Controlled Variables Control Set up

Types of Solutions 98% H 2 O 2% NaCl 100%H 2 O 0% NaCl 96% H 2 O 4% NaCl

Procedure Use step cards

Egg-speriment Data Table Environment Control Mass gDistilled Water Mass g Corn Syrup g Day 1Day 2Day 1Day 2Day 1Day2 Quantitative Observations Qualitative Observations Environment ControlDistilled WaterCorn Syrup Day 1Day 2Day 1Day 2Day 1Day 2