IB Diploma Biology HL, topic C2
Cells (Interaction and interdependence)
Cells interact by sending and receiving signals. This group covers chemical signalling (HL only): ligands, receptors and the signal transduction pathways they start. It also covers neural signalling: resting and action potentials, the speed of nerve impulses and the synapses that link neurons to each other and to effector cells.
Revision notes
Worksheet
FlashcardsSubtopics
Work through them in order. Each one has notes, exam questions and flashcards, and a PDF of each.
- 1Chemical signalling HL onlySpec C2.1IB Biology HL chemical signalling: ligands, receptors, quorum sensing, G proteins and cAMP, the insulin receptor, steroid hormones and feedback.NotesQuestions 8Flashcards 22
- 2Neural signalling Spec C2.2IB Biology neural signalling: neurons, resting and action potentials, impulse speed and synapses, plus HL saltatory conduction and summation.NotesQuestions 8Flashcards 22
Whole topic
When you have done the subtopics: test yourself on everything, or print the lot.