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

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Presentation on theme: "Devon Scholz. H2.4- Outline the control of digestive juice secretion by nerves and hormones, using the example of secretion of gastric juice.  Pre- Ingestion:"— Presentation transcript:

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

4

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 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 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  /chap%2024/chapter%2024- newpart2.htm /chap%2024/chapter%2024- newpart2.htm  Thelifewire.com  Ib.bioninja.com


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