## Unit: Cell structure and function

### introduction to the cell
https://cdn.kastatic.org/ka-youtube-converted/5KfHxF6Vhps.mp4/5KfHxF6Vhps.mp4
https://cdn.kastatic.org/ka-youtube-converted/5KfHxF6Vhps.mp4-low/5KfHxF6Vhps-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/5KfHxF6Vhps.mp4-low-ios/5KfHxF6Vhps-low-ios.mp4

### organelles in eukaryotic cells
https://cdn.kastatic.org/ka-youtube-converted/bWPQvxElpLY.mp4/bWPQvxElpLY.mp4
https://cdn.kastatic.org/ka-youtube-converted/bWPQvxElpLY.mp4-low/bWPQvxElpLY-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/bWPQvxElpLY.mp4-low-ios/bWPQvxElpLY-low-ios.mp4

### endoplasmic reticulum and golgi bodies
https://cdn.kastatic.org/ka-youtube-converted/6UqtgH_Zy1Y.mp4/6UqtgH_Zy1Y.mp4

### endomembrane system
https://cdn.kastatic.org/ka-youtube-converted/vC-cEWJxDRY.mp4/vC-cEWJxDRY.mp4

### mitochondria video
https://cdn.kastatic.org/ka-youtube-converted/i1dAnpSFbyI.mp4/i1dAnpSFbyI.mp4

### scale of cells
https://cdn.kastatic.org/ka-youtube-converted/xKJ3txXIuQk.mp4/xKJ3txXIuQk.mp4

### cell size
https://cdn.kastatic.org/ka-youtube-converted/6xx5v3PKZZM.mp4/6xx5v3PKZZM.mp4

### introduction to cilia flagella and pseudopodia
https://cdn.kastatic.org/ka-youtube-converted/E0D1H74PMmI.mp4/E0D1H74PMmI.mp4
https://cdn.kastatic.org/ka-youtube-converted/E0D1H74PMmI.mp4-low/E0D1H74PMmI-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/E0D1H74PMmI.mp4-low-ios/E0D1H74PMmI-low-ios.mp4

### surface area to volume ratio of cells
https://cdn.kastatic.org/ka-youtube-converted/uu9eHX6Tu8Q.mp4/uu9eHX6Tu8Q.mp4
https://cdn.kastatic.org/ka-youtube-converted/uu9eHX6Tu8Q.mp4-low/uu9eHX6Tu8Q-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/uu9eHX6Tu8Q.mp4-low-ios/uu9eHX6Tu8Q-low-ios.mp4

### surface area of a box
https://cdn.kastatic.org/ka-youtube-converted/1iSBNSYhvIU.mp4/1iSBNSYhvIU.mp4
https://cdn.kastatic.org/ka-youtube-converted/1iSBNSYhvIU.mp4-low/1iSBNSYhvIU-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/1iSBNSYhvIU.mp4-low-ios/1iSBNSYhvIU-low-ios.mp4

### volume of a sphere
https://cdn.kastatic.org/ka-youtube-converted/IelS2vg7JO8.mp4/IelS2vg7JO8.mp4
https://cdn.kastatic.org/ka-youtube-converted/IelS2vg7JO8.mp4-low/IelS2vg7JO8-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/IelS2vg7JO8.mp4-low-ios/IelS2vg7JO8-low-ios.mp4

### fluid mosaic model of cell membranes
https://cdn.kastatic.org/ka-youtube-converted/cP8iQu57dQo.mp4/cP8iQu57dQo.mp4

### cell membrane proteins
https://cdn.kastatic.org/ka-youtube-converted/0emD1AmfdjY.mp4/0emD1AmfdjY.mp4

### cell membrane introduction
https://cdn.kastatic.org/ka-youtube-converted/QpcACa39YtA.mp4/QpcACa39YtA.mp4

### cell membrane overview fluid mosaic model
https://cdn.kastatic.org/ka-youtube-converted/LXaPt9i9hqk.mp4/LXaPt9i9hqk.mp4

### plant cell walls
https://cdn.kastatic.org/ka-youtube-converted/zdvKhaQxvag.mp4/zdvKhaQxvag.mp4

### introduction to passive and active transport
https://cdn.kastatic.org/ka-youtube-converted/TsoAA7zOyj8.mp4/TsoAA7zOyj8.mp4
https://cdn.kastatic.org/ka-youtube-converted/TsoAA7zOyj8.mp4-low/TsoAA7zOyj8-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/TsoAA7zOyj8.mp4-low-ios/TsoAA7zOyj8-low-ios.mp4

### passive transport and selective permeability
https://cdn.kastatic.org/ka-youtube-converted/jQN07Hvq6WI.mp4/jQN07Hvq6WI.mp4

### endocytosis phagocytosis and pinocytosis
https://cdn.kastatic.org/ka-youtube-converted/QspmZf_yWyU.mp4/QspmZf_yWyU.mp4

### exocytosis
https://cdn.kastatic.org/ka-youtube-converted/VOzV4d0HKis.mp4/VOzV4d0HKis.mp4

### facilitated diffusion
https://cdn.kastatic.org/ka-youtube-converted/8HlVy__J8XA.mp4/8HlVy__J8XA.mp4

### electrochemical gradient and secondary active transport
https://cdn.kastatic.org/ka-youtube-converted/wbWL2wfvsM8.mp4/wbWL2wfvsM8.mp4

### uniporters symporters and antiporters
https://cdn.kastatic.org/ka-youtube-converted/-aGYytZ7K7M.mp4/-aGYytZ7K7M.mp4

### sodium potassium pump video
https://cdn.kastatic.org/ka-youtube-converted/vh166DKxYiM.mp4/vh166DKxYiM.mp4

### diffusion and osmosis
https://cdn.kastatic.org/ka-youtube-converted/aubZU0iWtgI.mp4/aubZU0iWtgI.mp4

### osmosis
https://cdn.kastatic.org/ka-youtube-converted/rCNlG_j_gSM.mp4/rCNlG_j_gSM.mp4

### hypotonic isotonic and hypertonic solutions tonicity
https://cdn.kastatic.org/ka-youtube-converted/afWnU10ZNfg.mp4/afWnU10ZNfg.mp4

### water potential example
https://cdn.kastatic.org/ka-youtube-converted/BsnJDe4Tl-4.mp4/BsnJDe4Tl-4.mp4
https://cdn.kastatic.org/ka-youtube-converted/BsnJDe4Tl-4.mp4-low/BsnJDe4Tl-4-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/BsnJDe4Tl-4.mp4-low-ios/BsnJDe4Tl-4-low-ios.mp4

### prokaryotic and eukaryotic cells
https://cdn.kastatic.org/ka-youtube-converted/xTnNv7YplSo.mp4/xTnNv7YplSo.mp4

### endomembrane system
https://cdn.kastatic.org/ka-youtube-converted/vC-cEWJxDRY.mp4/vC-cEWJxDRY.mp4

### endosymbiosis theory
https://cdn.kastatic.org/ka-youtube-converted/eCWwKrJyKxA.mp4/eCWwKrJyKxA.mp4
https://cdn.kastatic.org/ka-youtube-converted/eCWwKrJyKxA.mp4-low/eCWwKrJyKxA-low.mp4
https://cdn.kastatic.org/ka-youtube-converted/eCWwKrJyKxA.mp4-low-ios/eCWwKrJyKxA-low-ios.mp4
