Nothing Happens Until the Small Intestine

Here, bile salts are needed to emulsify the fats.

Shows the interaction between the gallbladder, liver, and duodenum in relation to bile.

Figure 50.15, Purves's Life: The Science of Biology, 7th Edition

Emulsification and Lipase Action

Depicts the process of emulsification, in which large fat globules are broken down into small fat droplets; also shows the final step, where lipase breaks down the droplets into their components.

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Absorption of Lipids in the Small Intestine

Shows the twin processes of digestion and absorption with relation to fats.

Figure 50.16, Purves's Life: The Science of Biology, 7th Edition

Surface Area Increases Absorption

Zooms in on a section of the small intestine, showing how its many folds increase surface area.

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Review of Lipid Digestion

A review of lipid digestion, moving from fat globules to absorption of glycerol and fatty acids.

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