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Bio 12
Mr. Man – label the ones you already know!
Digestion – Pathway- Structure and Function
Part
Structure
Function
1)
2)
3)
4)
5)
Enzymes
Level 1
Sketch out the digestive pathway, include the 3 accessory organs – list enzymes that are active in each location and provide ph.
Enzymes
Level 2
Organize enzymes by the macromolecule they digest. Show the enzymes in order of the digestive process for each macromolecule.
Blood Sugar Regulation
The pancreas is both a ______________________ and __________________________ gland.
In blood sugar regulation the pancreas release 2 _______________________________; _____________________ and _____________________________. These hormones target the _____________________________ where ___________________ can be stored as _________________________ when blood sugar is too _______________________________.
Normal blood sugar levels are ______________________________.
REVIEW TIME = GOOD TIMES!
Part 1. Vocab
1. enzyme
2. hormone
3. saliva
4. salivary amylase
5. peristalsis
6. sphincter
7. pancreas
8. liver
9. chemical digestion
10. physical digestion
11. epiglottis
12. bile
13. emulsification
14. absorption
15. pancreatic juice
16. E Coli
17. insulin
18. glucagon
19. pepsin
20. gastric juice
21. sodium bicarbonate
22. appendix
23. villi
24. pancreatic amylase
25. trypsin
26. nucleases
27. maltase
28. peptidases
29. emulsify
30. gallbladder
Part 2. ONE WORDS - Easy Peasy – Fill in the blank Spots.
1. There are 3 types of biochemicals in the food that we eat that have to be digested. These are: _________________ ______________________ and ______________________________.
2. The stomach is directly connected to the _______________________ above) and the _____________________ (below).
3. The major food tyope that is digested in the stomach is ________________________, which is hydrolysed by the enzyme ________________________.
4. Among its chemical aspects, every digestive enzyme has a preferred ____________.
5. Before fats are digested they are emulsified by _____________________.
6. Pancreatic juices enter the small intestine by way of th ___________________ duct and contain ________________________ for the digestion of all three types of biochemicals.
7. The finger like projections lining the walll of the small intestine are called ___________________.
8. A bacterium ____________________, lives I the colon, its metabolic activities release ______________ and ___________________.
9. Name 6 functions of the liver:
________________________________________________________
________________________________________________________
________________________________________________________
Part 3 - Summary of Digestive Enzymes
Enzyme
Source
Substrate
Product
pH
3 stories of Digestion – Now Organize the enzyme by the biochemical they digest. Trace the chemical breakdown of the 3 biochemicals listed below. Give enzyme, substrate, product and pH.
1. Carbs
2. Proteins
3. Lipids
Part 4 - Digestive System Concept Questions
1. How do mechanical and chemical digestion work together to break down food?
2. How does chewing aid digestion?
3. What is the purpose of saliva?
4. Your friend notices that when they chew soda crackers they start to taste sweet. How would you explain this to your friend?
5. Your friend bets you that you cannot swallow food while standing on your head. Do you take the bet?
6. One of your friends laughs at pretty much anything and often chokes on food at lunch. How would you explain the connection?
7. What would be the result if the stomach did not have sphincter muscles?
8. What’s the deal with pepsinogen and pepsin?
9. Your friend’s father has been diagnosed with a peptic ulcer. Explain to them what this means and give some advice about how to treat it.
10. Why is surface area important in the small intestine and what features increase it?
11. How is the structure of villi adapted to their function?
12. How do food molecules get from the stomach to your blood?
13. How is the small intestine protected from the acid chyme? From pepsin?
14. Complete the following table
Nutrient
Digestion Begins
Digestion Completed
Carbohydrates
Proteins
Fats
Mr Man – now you should know them ALL!
A Villus – label it up!
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