RV Study Session - Chemical Signalling [IB Biology HL]

This session covers signalling molecules like hormones, neurotransmitters, and cytokines and how they act through specific pathways, including G protein-coupled receptors, ion channels, and intracellular receptors that regulate gene expression. Visit the RV Study Sessions page for many more sessions in Biology and other subjects too: https://www.revisionvillage.com/study-sessions/