Khan Academy on a Stick
Cells
-
Diffusion and osmosis
Diffusion and Osmosis
-
Nuclei, membranes, ribosomes, eukaryotes and prokaryotes
-
Endoplasmic reticulum and Golgi bodies
-
Organelle overview
-
Chromosomes, chromatids, chromatin, etc.
The vocabulary of DNA: chromosomes, chromatids, chromatin, transcription, translation, and replication