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Life ScienceGrade 6-8

Digestive System Answer Key

Follow the path of food through the digestive system and learn how nutrients are absorbed.

Looking for Digestive System answers? This complete answer key provides verified solutions for all student exploration activities and assessment questions in the ExploreLearning Digestive System Gizmo.

100% Free • Step-by-step explanations • Perfect for homework help • Covers all activities • Updated for 2026

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The Digestive Journey

Q1.Where does digestion start?

Answer

In the mouth - saliva contains enzymes that start breaking down carbohydrates.

Q2.What does the stomach do?

Answer

It churns food and mixes it with acid and enzymes to break it down into a liquid called chyme.

Q3.Where are most nutrients absorbed?

Answer

In the small intestine - it has tiny finger-like projections called villi that absorb nutrients into the bloodstream.

Organs and Functions

Q4.What does the liver do in digestion?

Q5.What's the job of the large intestine?

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