Graham’s Law of Diffusion HCl NH 3 100 cm NH 4 Cl(s) Choice 1: Both gases move at the same speed and meet in the middle.
Movement Across the Membrane Active and Passive. Diffusion is the movement of molecules from a region of high concentration to a region of less concentration.
1 Membranes. 2 Outline Phospholipid Bilayer Fluid Mosaic Model Membrane Proteins Diffusion Facilitated Diffusion Osmosis – Osmotic Balance Bulk Transport.
Plant Nutrition Andrew G. Ristvey Wye Research and Education Center Maryland Cooperative Extension College of Agriculture and Natural Resources University.
Cell Membranes Chapt 5 . The Cell Membrane.
Diffusion #1 ECE/ChE 4752: Microelectronics Processing Laboratory Gary S. May January 29, 2004.
Membrane Transport Chapter 6 Cells Need to Exchange Materials with the Extracellular Fluid Take in nutrients –O2–O2 –energy substrates –building materials.
Chapter 4 Cell Membrane Structure & Function. 4.1 – How Is the Structure of a Membrane Related to its Function?
The Cell Membrane
Chapter 5 Chapter 5 Membrane Transport Mechanisms Membrane Transport Mechanisms.
3.1 Our understanding of the cell grew as microscope quality improved.
IB Biology Exam Guide
