Download Digestive Sytem HW

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Practice | SWBAT relate organs in the digestive system to their functions.
1. The main function of the human digestive system is to…
A. exchange oxygen and carbon dioxide in the lungs.
B. break down foods for absorption into the blood.
C. release energy from sugars within the cell.
D. carry nutrients to all parts of the body.
Use the diagram to the right to answer questions 2-4.
2. In which two organs does mechanical digestion occur?
A. A and B
B. A and C
C. B and C
D. C and D
A
B
3. Which answer below correctly matches an organ with its function?
A. Organ B – Moves food with muscle contractions called
peristalsis
B. Organ C – Digests food chemically and mechanically.
C. Organ D – Absorbs nutrients from food.
D. Organ E – Absorbs excess liquid from food.
C
D
4. Which organ is not functioning properly if a person is unable to
reabsorb liquid from undigested food?
A. Organ A
B. Organ C
C. Organ D
D. Organ E
E
5. Which organ absorbs nutrients from digested food and delivers them to the bloodstream?
A. Small intestine
B. Large intestine
C. Stomach
D. Mouth
6. Which organ does not break down food chemically?
A. Mouth
B. Esophagus
C. Stomach
D. Small intestine
7. Match each organ with a description of its function.
Organ
Mouth
Esophagus
Stomach
Small intestine
Large intestine
Function
Absorbs nutrients from food
Moves food using peristalsis
Digests food chemically and mechanically
Absorbs excess liquid and compacts indigestible food
Where food first enters the digestive system
8. Which student below correctly marked the organ that absorbs nutrients from food and the organ that moves
food to the stomach?
Student
1
2
3
4
A. Student 1
Esophagus
Stomach
X
X
Organs
Small intestine
X
X
Large intestine
X
X
X
X
B. Student 2
C. Student 3
D. Student 4
9. Using complete sentences, explain two ways that food is changed as it passes through the digestive system
and in what organs these changes could occur.
The diagram below shows the digestive system of an earthworm. Use it to answer questions 10-11.
10. Identify three digestive organs in the earthworm that are also
found in the human body. (You can count “intestine”).
11. Describe the function that each organ you identified in part (a) has in the human body.
12. Review: Which diagram below represents one type of human tissue?
A.
B.
C.
D.