Interactive Tools

3D models, labs, and step-by-step reaction animations.

3D

Membrane Transport

Rotate a 3D phospholipid bilayer — explore channels, carriers & glycoproteins.

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Lab

Virtual Osmosis Lab

Watch net water move across a differentially permeable membrane — higher ψ to lower ψ.

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7 steps

Endosymbiotic Theory

How mitochondria and chloroplasts arose — infolding, engulfment, and two branches.

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5 steps

Maltose Condensation

Two α-D-glucose → maltose — Haworth structures and glycosidic bond formation.

Open animation →

10 rxns

Ch5 Condensation & Hydrolysis

All Ch5 biomolecule reactions — maltose, triglyceride, dipeptide, starch, cellulose, DNA.

Open reaction hub →

3 units

Enzyme

Enzyme action, five key properties, and how temperature and pH affect digestion.

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