http://www.ck12.org Chapter 1. Human Biology
Summary
- Digestive enzymes speed up the reactions of chemical digestion.
- Hormones, chemical messengers used to communicate between cells, are important in regulating digestion.
Practice
Use the resource below to answer the questions that follow.
- Enzymes in the Digestive Systemat http://www.youtube.com/watch?v=KED6BHVM97s (0:58)
MEDIA
Click image to the left for more content.- What is salivary amylase? Where is it secreted? What does it do?
- What does pancreatic amylase do? Where does this occur?
- What does lactase do? What is lactase? Where is it excreted?
- Where are monosaccharides absorbed?
Review
- Explain the role of enzymes in digestion. Give an example to illustrate your answer.
- Describe an example of how a hormone affects digestion.