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Name: _____________________________ Date: ________ Class: ______
Digestive System & Enzyme Review Packet
Identify the major parts of the human digestive system
on a diagram. Using the key, match the following parts
to their correct structure on the digestive system
diagram.
1. _____ Anus
2. _____ Appendix
3. _____ Esophagus
4. _____ Gallbladder
5. _____ Large Intestine
6. _____ Liver
7. _____ Pancreas
8. _____ Pharynx
9. _____ Rectum
10. _____ Salivary Gland
11. _____ Small Intestine
12. _____ Stomach
13. _____ Tongue
NAME OF ORGAN
FUNCTION
14. Esophagus
Tube that squeezes food from the mouth to the stomach
15.
Begins chemical digestion of proteins, stores food temporarily
16.
Stores feces before they are excreted
17.
Stores bile
18.
Helps mix food with saliva
19.
Passageway for feces to exit the body
20.
Makes solution of mucus, water & an enzyme that starts digesting
starch
Makes bile
21.
22.
24.
Fingerlike projection that is attached to the large intestine (no function
in humans)
Finishes digesting fats, proteins and carbohydrates. Sends nutrients
into the blood.
Makes enzymes that get sent into the small intestine
25.
Absorbs water from undigested food (wastes)
26.
Connects mouth to esophagus
23.
Identify the functions of the salivary glands, teeth and tongue.
Write the structure name next to its description
Mouth
Teeth
Tongue
Salivary Glands
27.
_____________________ this structure takes in food and mixes it with saliva
28.
_____________________ these structures begin mechanical digestion of food
29.
_____________________ this structure that helps mix food with saliva, helps with
swallowing
30.
_____________________ these structures make saliva which starts chemical digestion
of carbohydrates
Using parts of the mouth as examples, distinguish between mechanical and chemical
digestion
Tell whether the statements below are describing MECHANICAL or CHEMICAL DIGESTION
31.
32.
33.
34.
_________________ Process in which food changes into a form the body can use. It is
not the same substance after it is broken down.
_________________ Process in which large food particles are broken down into smaller
pieces of the same substance
_________________ This process is performed by the saliva in the mouth to break down
carbohydrates
_________________ This process is performed by the teeth
Identify the functions of the pharynx and the esophagus
Tell whether the statements below are describing the PHARYNX or ESOPHAGUS.
35.
____________________ The part of the digestive tube just above the stomach
36.
____________________
37.
____________________ Upper portion of the throat
38.
____________________ Tube that squeezes food into the stomach
39.
____________________ Connects mouth with the esophagus
40.
____________________
Identify the organs each description being described below.
41.
_____ Makes saliva
42.
_____ Chemical digestion occurs here with the enzyme pepsin
43.
_____ Absorbs water from feces
44.
_____ Stores food
45.
_____ Releases wastes
46.
_____ Mechanical digestion occurs here when food is stirred
Using a full sentence, define the term enzyme
47.
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
Given a diagram, label: enzyme, substrate, product, active site
Match each of the following statements to the correct picture on the diagram below by
writing the correct letter in the space provided.
48.
_____ The products are released by the enzyme (picture A, B, C or D)
49.
_____ The substrate enters the active site of the enzyme (picture A, B, C or D)
50.
_____ The enzyme begins to change the substrate into the products (picture A, B, C, D)
51.
_____ The products
52.
_____ The active site
53.
_____ The enzyme
54.
_____ The substrate
Match the following words with their descriptions: enzyme, substrate, product, active
site. Some words will be used more than once!
active site,
product(s),
enzyme,
substrate(s)
55.
_________________________ a molecule that binds to the active site of an enzyme at
the beginning of a chemical reaction
56.
_________________________ a molecule that helps break down food in our body
57.
_________________________ a region on the enzyme where the substrate binds
58.
_________________________ molecules that are formed in a chemical reaction
59.
_________________________ proteins that speed up chemical reactions in organisms
60.
_________________________ molecule that will be changed by an enzyme
61.
_________________________a molecule that is released from the active site of an
enzyme at the end of a chemical reaction
OBJECTIVE: Given a diagram, write a sentence or draw a picture to predict the chemical
change the enzyme will make
62.
The diagram below shows a
chemical reaction in progress. By
either writing a sentence, OR
drawing a picture, predict the
chemical change that the enzyme
will make. Be sure to use the
following words in your
explanation, or in your diagram:
Enzyme
substrate
product.
Write the name and function(s) of each of the following organs in the box next to the
pictures:
Name of organ labeled “A”:
63.
Function(s):
Name of organ labeled “B”:
64.
Function(s):
Name of organ labeled “C”:
65.
Function(s):
Identify the organs each description being described below.
66.
_____ absorbs nutrients through villi and sends them to the bloodstream
67.
_____ absorbs water
68.
_____ breaks down carbohydrates, lipids and proteins
69.
_____ forms feces
70.
_____ makes bile
71.
_____ makes digestive enzymes
72.
_____ makes digestive enzymes
73.
_____ makes bile
74.
_____ forms feces