Multiple Choice
What is the role of pepsin in the digestion of proteins?
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23. The Digestive System
Introduction to the Digestive System
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Which body system is responsible for converting food into simpler substances for the body to absorb as nutrients?
A
Digestive system
B
Circulatory system
C
Nervous system
D
Respiratory system
Verified step by step guidance1
Begin by identifying the primary function of each body system listed in the options.
Understand that the digestive system is responsible for breaking down food into simpler substances that can be absorbed as nutrients.
Recognize that the circulatory system is primarily responsible for transporting nutrients, gases, and waste products throughout the body.
Note that the nervous system is involved in controlling and coordinating body activities, including processing sensory information.
Acknowledge that the respiratory system is responsible for gas exchange, primarily oxygen and carbon dioxide, between the body and the environment.
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