Bio Lab4 DiffusionandOsmosis
Water Balance in Animals Ch 10 p325-330. Key Questions How do humans maintain water levels in the blood? – What structures (organs and glands), hormones.
How do cells maintain structure, connections & organize activities?
MOVEMENT ACROSS MEMBRANES. Role of plasma membrane Maintains the cell’s internal environment by: –Keeping some substances in and other substances out.
By Chris Paine Essential Idea: Membranes control the composition of cells by active and passive transport. Membrane Transport.
Ch. 44 Osmoregulation and Excretion A Balancing Act.
Osmoregulation and Excretion. Osmoregulation: Regulation of solute concentrations and water balance by a cell or organism. Osmoregulation balances the.
8.8: Limits of Solubility When we dissolve a solid in some liquid, what is actually happening? –Take glucose added to water H-bonding between water molecules.
Stressors Affecting Fluid & Electrolyte Balance NUR 101 FALL 2010 LECTURE # 15 & #16 K. Burger, MSEd, MSN, RN, CNE.
Water Water Water Potential. What are you water potential? Measures the tendency of water to leave one place in favor of another – Measured in bars High.
Simple Diffusion w.esu7.org/~lweb/gifs/cells.jpg&imgrefurl= w.esu7.org/~lweb/Lakeview/science/sea.htm&usg=__.
2 Points: Easy Who was the first person to observe cells under a microscope? Robert Hooke.