Explore interactive simulations to visualise and understand key biological processes. Click a simulation to open it.
Mutations
Explore how point mutations and frameshifts in the DNA template strand change the mRNA codon and the resulting amino acid sequence.
Synapse Drug Effects
Predict how different drugs affect each step of synaptic transmission at a cholinergic synapse.
Blood Glucose Regulation
Interactive simulation of negative feedback in blood glucose control
O₂ Dissociation Curve
Explore how haemoglobin loads and unloads oxygen — and how the Bohr effect shifts the curve under different conditions.
Tissue Fluid
Visualise how tissue fluid forms and is reabsorbed — and predict what goes wrong in high blood pressure and low plasma protein conditions.
Cardiac Cycle
Identify the three phases of the cardiac cycle and the valve events that maintain unidirectional blood flow.
Cohesion-Tension
Explore how water moves from roots to leaves through the xylem via transpiration, tension, cohesion, and adhesion.
Mass Flow Hypothesis
Explore how sucrose is actively loaded into the phloem at the source, how osmosis creates hydrostatic pressure, and how mass flow drives translocation to the sink.
Transcription
Step through how DNA is transcribed into pre-mRNA inside the nucleus — from RNA polymerase binding to the pre-mRNA strand being released.