Khan Academy

Meet Stephanie Spence! (K-A)

What can you do with biology? (K-A)

Fluid mosaic model of cell membranes (K-A)

Structure of the plasma membrane (K-A)

Concentration gradients (K-A)

Diffusion – Introduction (K-A)

Diffusion and osmosis-video (K-A)

Hypotonic, isotonic, and hypertonic solutions (tonicity) (K-A)

Osmosis (K-A)

Osmosis and tonicity (K-A)

Diffusion and passive transport (K-A)

Facilitated diffusion (K-A)

Passive transport and selective permeability (K-A)

Active transport-link (K-A)

Electrochemical gradients and secondary active transport (K-A)

Sodium potassium pump (K-A)

Uniporters, symporters and antiporters (K-A)

Bulk transport-link (K-A)

Endocytosis, phagocytosis, and pinocytosis (K-A)

Exocytosis (K-A)

ATP hydrolysis mechanism (K-A)

ATP: Adenosine triphosphate (K-A)

Breaking down photosynthesis stages (K-A)

Intro to photosynthesis-link (K-A)

Photosynthesis-video (K-A)