A - Unity and Diversity
B - Form and Function
C - Interaction and Interdependence
C1.1 Enzymes and metabolism
C1.2 Cell respiration
C1.3 Photosynthesis
C2.1 Chemical signalling (HL)
C2.2 Neural signalling
C3.1 Integration of body systems
C3.2 Defense against disease
C4.1 Populations and communities
C4.2 Transfer of energy and matter
D - Continuity and Change
View a summary cheatsheet for C2.1 Chemical signalling (HL)
C2.1.1 Receptors
C2.1.2 Cell signalling by bacteria in quorum sensing
C2.1.3 Hormones, neurotransmitters, cytokines and calcium ions
C2.1.4 Chemical diversity of hormones and neurotransmitters
C2.1.5 Localized and distant effects of signalling molecules
C2.1.6 Transmembrane receptors VS Intracellular receptors
C2.1.7 Initiation of signal transduction pathways by receptors
C2.1.8 Transmembrane receptors for neurotransmitters and changes to membrane potential
C2.1.9 Transmembrane receptors that activate G proteins
C2.1.10 Mechanism of action of epinephrine (adrenaline) receptors
C2.1.11 Transmembrane receptors with tyrosine kinase activity
C2.1.12 Intracellular receptors that affect gene expression
C2.1.13 Effects of the hormones oestradiol and progesterone on target cells
C2.1.14 Regulation of cell signalling pathways by positive and negative feedback
