Explore water, elements of life, macromolecules, carbohydrates, lipids, nucleic acids and proteins. Read the guide, watch each lesson, practise with the workbook and use relevant labs to connect molecular structure to biological function. This is the participation route: reach Level 2, then request access to complete Unit 1. Access is granted after review. The online workbook reader is launching soon.

Explore water, elements of life, macromolecules, carbohydrates, lipids, nucleic acids and proteins. Read the guide, watch each lesson, practise with the workbook and use relevant labs to connect molecular structure to biological function. Build AP-style MCQ and FRQ reasoning. This is the purchase route for complete Unit 1; access is granted after review. The online workbook reader is launching soon.

Explore cell structures, organelles, membranes, transport, osmosis, tonicity, water potential, surface area-to-volume ratio and compartmentalization. Read the guide, watch the lesson, complete matching workbook practice and explain your reasoning with diagrams and data. The online workbook reader is launching soon; availability is shown by unit.

Investigate enzymes, ATP and energy coupling, photosynthesis and cellular respiration. Read the guide, watch the lesson, practise in the workbook and test ideas in relevant interactive labs. Use models and experimental data to build AP-style reasoning. The online workbook reader is launching soon; availability is shown by unit.

Explore cell communication, signaling pathways, feedback, the cell cycle and failures of regulation. Read the guide, watch each lesson, complete workbook practice and test ideas in relevant interactive labs. Build explanations using models and data. The online workbook reader is launching soon; availability is shown by unit.