Digestion and Circulation
by Anonymous
Break nutrients down with digestive enzymes, then trace the two absorption routes in the villi and the direction blood flows through the heart.
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About this app
Digestion and Circulation is an interactive middle school biology learning app covering how starch, protein, and fat are broken down, absorbed, and transported through the body. Explore three tabs to match nutrients with digestive juices, choose the correct absorption route in the small intestine, and trace blood vessels by their direction from or toward the heart. Step-by-step challenges highlight concepts such as villi, microvilli, capillaries, lymph vessels, arteries, and veins.
Use cases
- Middle school students studying digestion and circulation
- Teachers demonstrating nutrient breakdown and absorption
- Learners reviewing digestive juices and their target nutrients
- Students practicing the difference between arteries and veins
- Families exploring core human biology concepts together
Features
- Interactive digestion challenges for starch, protein, and fat
- Displays nutrient changes from large molecules to absorbable pieces
- Matches glucose and amino acids with capillaries and fatty acids with lymph vessels
- Shows how folds, villi, and microvilli increase intestinal surface area up to 600 times
- Identifies pulmonary arteries, pulmonary veins, the aorta, and the vena cava by blood-flow direction
- Reset and next-step controls with progress indicators and explanatory feedback