1. Devon Scholz

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

5.  Pre-Ingestion 1. __________ _____ are produced to hydrolyze the molecules in need of digestion. 2. _______ and ________ of ______cause gastric juice to be secreted in the ________.  Post Ingestion 1. _________ is the stretching of the stomach wall and causes ______ to send a signal to the brain. 2. This causes _______ to be produced and ______ sustains the amount of gastric juices in the Stomach.

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

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

8.  Example:

9.  Membrane bound enzymes: 1. What is one benefit of having a membrane bound enzyme? 2. What is an example of a membrane-bound enzyme and where is it located?

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

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

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