SAT Subject Biology Practice Question 280: Answer and Explanation

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Question: 280

10. Structure where most digestion and absorption of nutrients occurs

A. Small intestine
B. Large intestine
C. Stomach
D. Esophagus
E. Mouth

Correct Answer: A

Explanation:

A Most digestion and absorption occur in the small intestine. A very small amount of digestion (starch only) takes place in the mouth, and a very small amount of digestion takes place in the stomach (acid hydrolysis of food and some protein digestion). As with Questions 7-9, Questions 10-12 require the same type of knowledge-memorization of basic facts.

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