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Option H2.4-2.6 Further Physiology

Devon Scholz. Option H2.4-2.6 Further Physiology. H2.4- Outline the control of digestive juice secretion by nerves and hormones, using the example of secretion of gastric juice. Pre- Ingestion:. Post- Ingestion. Pre-Ingestion

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Option H2.4-2.6 Further Physiology

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  1. Devon Scholz Option H2.4-2.6Further Physiology

  2. H2.4- Outline the control of digestive juice secretion by nerves and hormones, using the example of secretion of gastric juice. • Pre- Ingestion:

  3. Post- Ingestion

  4. Pre-Ingestion • __________ _____ are produced to hydrolyze the molecules in need of digestion. • _______ and ________ of ______cause gastric juice to be secreted in the ________. • Post Ingestion • _________ is the stretching of the stomach wall and causes ______ to send a signal to the brain. • This causes _______ to be produced and ______ sustains the amount of gastric juices in the Stomach.

  5. H2.5- Outline the role of membrane-bound enzymes on the surface of epithelial cells in the small intestine in digestion.

  6. Photo 50.44 Human ileum: mucosa composed of villi, crypts lined by simple columnar epithelium.

  7. Example:

  8. Membrane bound enzymes: • What is one benefit of having a membrane bound enzyme? • What is an example of a membrane-bound enzyme and where is it located?

  9. Photo 50.47 Absorptive cells and microvilli in monkey small intestine. SEM.

  10. H.2.6-Outline the reasons for cellulose not being digested in the alimentary canal.

  11. http://www.as.miami.edu/chemistry/2086/chap%2024/chapter%2024-newpart2.htmhttp://www.as.miami.edu/chemistry/2086/chap%2024/chapter%2024-newpart2.htm • Thelifewire.com • Ib.bioninja.com

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