H3+Absorption+of+digested+foods

H Further human physiology - H1 Hormonal control - H2 Digestion - H3 Absorption of digested foods - H4 Functions of the liver - H5 The transport system - H6 Gas exchange


 * Assessment statements** (IBO notes added to some point to clearly indicate what needs to be understood and what does not)
 * H.3.1 || Draw and label a diagram showing a transverse section of the ileum as seen under a light microscope. Include mucosa and layers of longitudinal and circular muscle. ||
 * H.3.2 || Explain the structural features of an epithelial cell of a villus as seen in electron micrographs, including microvilli, mitochondria, pinocytotic vesicles and tight junctions. ||
 * H.3.3 || Explain the mechanisms used by the ileum to absorb and transport food, including facilitated diffusion, active transport and endocytosis. ||
 * H.3.4 || List the materials that are not absorbed and are egested. Limit this to cellulose, lignin, bile pigments, bacteria and intestinal cells. ||

An alternative set of notes from [|i-Biology] is available via [|this link]. (alternative box.com link)
 * Workbooks and Worksheets **

Steven Taylor ( [|i-Biology] ) has a great presentation to view and take notes from before starting your notebook media type="custom" key="24541176"
 * Presentations and tutorials **

[|McGraw and Hill] notes and animations on the small intestine

[|i-Biology] is definitely worth a visit. It lists several useful links for this sub-topic including Nutrition Resources - an index of different narrated absorption animations.

This tutorial from WH Freeman on the digestion and absorption of lipids is as useful as a review of H2 Digestion as it is in outlining how lipids are absorbed.

Use [|click4biology] to review and complete your notes

Use the [|i-Biology] notes for this sub-topic. All that is required for H.3.4 is a list, but if you wish to be more thorough then use [|click4biology] to expand your notes on egestion.
 * Approach**

It's definitely worth visiting i-Biology for this sub-topic, if only to view the clip from Scrubs [|"Everything Comes Down To Poo"]


 * Useful Links **