Download Digestion- Check your Understanding 1. What are the four stages of

Digestion- Check your Understanding
1. What are the four stages of food processing?
2. Complete the chart:
Name of Stage
The Four Stages of Food Processing
Description of Stage
Location(s) Where Stage
Occurs
3. What are the two types of digestion?
4. What structures in the mouth are responsible for physical digestion?
5. What is an enzyme?
6. Once physical and chemical digestion have taken place in the mouth, the mixture is called a
__________________. When humans swallow, the _____________ leaves the mouth and passes
into the throat, which is called the _________________. The _______________ closes over on top
of the ______________ so that the food does not go down the wrong tube. The food enters the
digestive tube, called the ______________________.
7. The esophagus is made up of smooth muscle. It relaxes and contracts in a special motion called
_______________________ which pushes the food down into the stomach.
8. The gate at the top of the stomach is called the __________________________.
9. The stomach is lined with __________________ that cause the physical digestion of food.
10. The stomach produces _____________________ to prevent the acid from damaging the
stomach lining.
11. The end mixture after physical and chemical digestion in the stomach is called _____________.
12. Gastric Juice is made up of _________________ and _________________.
13. The stomach releases an enzyme called ______________ that helps break down protein.
14. When the chyme is ready to exit the stomach it passes through the ______________ sphincter
into the __________________.
15. Both digestion and ___________________ occur in the small intestine. There are many
_____________ and _______________ that increase the surface area for nutrient absorption.
16. The small intestine produces two enzymes. The one that breaks down maltose is called
___________________ and the one that breaks down protein is called __________________.
17. The pancreas releases three enzymes into the small intestine. List each enzyme and what each
enzyme is responsible for breaking down:
Name of Enzyme
What the enzyme breaks down:
1.
2.
3.
18. The pancreas also releases ______________________________ into the small intestine to
neutralize the very acidic chyme.
19. The liver releases _____________________ into the small intestine. What does the bile do?
20. Complete the Following Chart:
Name of Structure
Type of Digestion
Mouth
Physical
Mouth
Chemical
Stomach
Physical
Stomach
Chemical
Structures Involved OR
Enzymes Released
Type of Food that is
broken down
SmalI Intestine
Physical
Small Intestine
Chemical
21. Complete the Following Chart
Name of Enzyme
Where the enzyme
is produced (where
does it come from)
Salivary Amylase
Pepsin
Maltase
Peptidase
Pancreatic
Amylase
Lipase
Trypsin
Salivary Glands
Where the enzyme is
emptied/released
(where the enzyme
does its job)
Mouth
22. Why does the stomach produce HCl?
23. Why do you feel full longer if you eat protein?
Reaction that the enzyme causes
(Reactant→ Product)
Starch/ Carbohydrate →Maltose