These comprehensive video lessons help IB Biology students Standard Level (SL) and Higher Level (HL) understand and master the essential concepts needed for success in IB Exams. Each video focuses on C2.2 Neural signalling and is aligned with the IB Biology syllabus, ensuring focused learning on cell biology, genetics, and ecology. Students can watch and rewatch anytime, anywhere, perfect for visual learners, reinforcing complex concepts, and understanding IB methodology. By using RevisionDojo's video lessons consistently, learners build deep understanding and enter the exam with confidence.
Biology C2.2.1
C2.2.1 Neurons as cells within the nervous system that carry electrical impulses
Biology C2.2.2
C2.2.2 Generation of the resting potential by pumping
Biology C2.2.3
C2.2.3 Nerve impulses as action potentials that are propagated along nerve fibres
Biology C2.2.4
C2.2.4 Variation in the speed of nerve impulses
Biology C2.2.5
C2.2.5 Synapses as junctions between neurons and between neurons and effector cells
Biology C2.2.6
C2.2.6 Release of neurotransmitters from a presynaptic membrane
Biology C2.2.7
C2.2.7 Generation of an excitatory postsynaptic potential
Biology C2.2.8
C2.2.8 Depolarization and repolarization during action potentials (HL)
Biology C2.2.9
C2.2.9 Propagation of an action potential along a nerve fibre/axon (HL)
Biology C2.2.10
C2.2.10 Oscilloscope traces showing resting potentials and action potentials (HL)
Biology C2.2.11
C2.2.11 Saltatory conduction in myelinated fibres to achieve faster impulses (HL)
Biology C2.2.12
C2.2.12 Effects of exogenous chemicals on synaptic transmission (HL)
Biology C2.2.13
C2.2.13 Inhibitory neurotransmitters and generation of inhibitory postsynaptic potentials (HL)
Biology C2.2.14
C2.2.14 Summation of the effects of excitatory and inhibitory neurotransmitters (HL)
Biology C2.2.15
C2.2.15 Perception of pain by neurons with free nerve endings in the skin (HL)
Biology C2.2.16
C2.2.16 Consciousness (HL)