AP BIOLOGY
Action of Hormones
Visualize how hormones trigger cellular responses through signal transduction pathways. Explore the differences between lipid-soluble hormones (steroids) that pass through membranes to bind intracellular receptors and water-soluble hormones (peptides) that bind surface receptors, activating second messenger systems like cAMP and initiating phosphorylation cascades via G-protein coupled receptors (GPCRs).
AP BIOLOGY
Neuron Action Potential Simulator
Trigger an electrical stimulus on a neuron and watch the membrane potential graph trace typical Depolarization, Repolarization, and Hyperpolarization phases. Track the live states of Na+ and K+ ion channels.