Write a summary of what is happening in the picture. Describe what a semipermeable membrane is in your own words.
1. Hypothesis: If an egg is soaked in vinegar, then ____________________________.
Create Cornell notes in notebook
Requires NO energy Solutes move DOWN the concentration gradient From an area of high concentration to low conc. 3 types: osmosis, diffusion, facilitated diffusion
WATER moving to create homeostasis Water is polar, so it goes through the phospholipid bilayer
Solute- what is dissolved (like salt or sugar) Solvent- liquid that solute dissolves in (like water) Solution- solute + solvent
Hypotonic- low solute (water enters cell) Hypertonic- high solute (water leaves cell) Isotonic- equal solute (water goes in and out equally)
Movement of a particle DOWN the concentration gradient
Ex. Diffusion in blood to deliver oxygen to body cells
Movement of a particle DOWN the concentration gradient with the help of a protein in the plasma membrane NO energy used
Facilitatated Water Concentration Energy Pizza Salt Vaccine
Passive Diffusion Solution Polysaccharide Batman Isotonic phospholipid
Draw and label a hypotonic cell in a hypertonic solution and draw an arrow to show where the water moves. Draw and label a hypertonic cell in a hypotonic solution and draw an arrow to show where the water moves.
1. Results: The egg ____________ because _________. Draw a picture of before and after: 2. Hypothesis: If an egg is soaked in corn syrup, then _____________.
Answer in complete sentences! 1. What happens to your cells when you swim in the ocean for a long period of time and why? 2. Why is it necessary to frequently water plants and why?
2. Results: The egg _____________ because___________. Draw a before and after picture. 3. Hypothesis: If an egg is soaked in pure water, then __________.
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Set up cornell notes
Uses ENERGY (ATP) to transport particles UP the concentration gradient From areas of low concentration to high concentration 3 types: Active transport, endocytosis, exocytosis
Uses a protein pump Ex: sodium- potassium pump (Na+ K+) Uses ATP energy
The transport of bulky material out of the cell EXO = exit
Cell takes in big particles by forming vesicles from its plasma membrane Endo=INTO Types Phagocytosis (food) Pinocytosis (water)