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Biology journal Cambridge IGCSE 0610

Topic 14 of 21 · 5 modules planned

Coordination and response

Nerves, senses, hormones and homeostasis, and how plants respond to light and gravity.

Modules

  1. Module 1 · syllabus 14.1

    Nerves and reflexes

    How fast can you react?

    This module is planned. It will have readings, an experiment, practice with self-checks and a final check.

Syllabus statements for this topic · for teachers · 38 statements

Core for every pupil · Supplement also for Extended entry. Paraphrased from the Cambridge IGCSE Biology 0610 syllabus (2026–2028); check the official syllabus for exact wording.

14.1 Coordination and response

  • 14.1.1Electrical impulses travel along neuronesC
  • 14.1.2Central and peripheral nervous systemsC
  • 14.1.3Nervous system coordinates and regulates the bodyC
  • 14.1.4Identify sensory, relay and motor neuronesC
  • 14.1.5Reflex arc from receptor to effectorC
  • 14.1.6Reflex action: rapid automatic responseC
  • 14.1.7Synapse as a junction between neuronesC
  • 14.1.8Synapse structure: vesicles, gap, receptor proteinsS
  • 14.1.9Sequence of events at a synapseS
  • 14.1.10Synapses make impulses travel one wayS

14.2 Sense organs

  • 14.2.1Sense organs and their stimuliC
  • 14.2.2Identify structures of the eyeC
  • 14.2.3Functions of the parts of the eyeC
  • 14.2.4Pupil reflex and light intensityC
  • 14.2.5Pupil reflex: circular and radial musclesS
  • 14.2.6Accommodation for near and distant objectsS
  • 14.2.7Distribution of rods and conesS
  • 14.2.8Rods for dim light, cones for colourS
  • 14.2.9Position and function of the foveaS

14.3 Hormones

  • 14.3.1Hormone: made by a gland, carried by bloodC
  • 14.3.2Endocrine glands and their hormonesC
  • 14.3.3Adrenaline effects in fight or flightC
  • 14.3.4Nervous versus hormonal controlC
  • 14.3.5Pancreas secretes glucagonS
  • 14.3.6Adrenaline raises blood glucose and heart rateS

14.4 Homeostasis

  • 14.4.1Homeostasis: a constant internal environmentC
  • 14.4.2Insulin lowers blood glucoseC
  • 14.4.3Negative feedback around a set pointS
  • 14.4.4Blood glucose control: liver, insulin, glucagonS
  • 14.4.5Treatment of Type 1 diabetesS
  • 14.4.6Identify structures in the skinS
  • 14.4.7Temperature control: insulation, sweating, shivering, brainS
  • 14.4.8Vasodilation and vasoconstriction in the skinS

14.5 Tropic responses

  • 14.5.1GravitropismC
  • 14.5.2PhototropismC
  • 14.5.3Investigate tropisms in shoots and rootsC
  • 14.5.4Tropisms as chemical control of growthS
  • 14.5.5Auxin and shoot growthS