IB Biology Topic C2.1 Chemical Signalling (HL) covers syllabus content as part of Topic C2: Cells under Theme C: Interaction and Interdependence. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
C2.1 Chemical signalling is part of Topic C2: Cells under Theme C: Interaction and Interdependence.
What this topic covers
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