unit 4: the digestive system. essential questions what are the structures and functions of the...
TRANSCRIPT
Unit 4: The Digestive System
Essential Questions
• What are the structures and functions of the digestive system?
• What are some common disorders of the digestive system?
• How has history shaped what we eat today?• How does our culture and where we live effect
what we eat?• How does what we eat affect our health?• How can we analyze what we eat?
Day 1: Digestion: An Overview
• Required Readings:– Section 15.1
• Learning Objectives:– Compare mechanical and chemical digestion– Describe the role of digestive enzymes
Video: Introduction to the Digestive System
Starter
• For lunch, you are going to eat a chicken sandwich with mayonnaise
• Describe the parts of the digestive system the sandwich will go through
• Where will the following items be broken down and how?– Bread– Chicken– Mayonnaise
• Time: 20 minutes
Activity 1
• Individually:– What culture do you identify yourself with? If it is
more than 1, list them.– What food(s) would you associate with your culture?
• With your group:– Compare the different foods that you associate your
culture with– Are there any similarities? Differences?
• Time: 15 minutes
Activity 2
• Many events throughout history were shaped by food or drink. Some examples include the Boston Tea Party, the Great Potato Famine of Ireland, Thanksgiving, and Marie Antoinette’s famous statement, “Let them eat cake.”
• Choose 1 food-related historical event to research and share with the class
• Time: 45 minutes
Activity 3
• Go to the website:– http://www.bbc.co.uk/schools/gcsebitesize/scienc
e/add_aqa_pre_2011/enzymes/• Choose the “enzymes and digestion” tab and
do the “revise”, “activity” and “test”• Time: 15 minutes
Closing
• Where are the following enzymes found:– Lipase– Protease– Amylase
• What do the above enzymes do?• Time: 5 minutes
Day 2
• Required Readings:– Section 9.2-9.9
• Learning Objectives:– Describe the location, structure and function of
the organs in the digestive system– Explain how and where different macromolecules
are digested– Describe how products of digestion are absorbed
Starter
• You are a hamburger that is going to be eaten• Write a story that describes what you see and the
structures you pass as you go from being eaten to being excreted
• Time: 15 minutes
Activity 1
• Share your historical food moments with the class
• Anything interesting from what was presented to you?
• Time: 15 minutes
Activity 2
• Complete the digestive system structures and functions table
• For structures that don’t produce enzymes, leave that section blank
• Time: 25 minutes
Activity 3• You will be given different structures or enzymes
from the digestive system• Line up in the order that food would meet that
particular structure– For enzymes, line up with the structure that produces
that enzyme• We will move some food to be digested down the
digestive system• As we meet your structure, tell us what it does in
the process of digestion• Time: 20 minutes
Closing
• Label the diagram with your group the different parts of the digestive system
• Say what enzymes are released from that part• Describe the function of that part• Time: 15 minutes
Homework
• Read Section 15.10
Day 3
• Required Readings:– 15.10
• Learning Objectives:
Day 4 – Food Nutrient Analysis
• Required Readings:• Learning Objectives:
Day 5 – Digestive By Products
Day 6 – Digestive Enzymes
Day 7 - Disorders
• Required Readings:– 15.11
• Learning Objectives:
Day 8 - Project
Day 9 - Project
Day 10 - Presentation