‹ Biology simulationsBiology · IGCSE 0610 · 14 Coordination and response: hormones, homeostasis and tropic responses‹ Biology simulationsBiology · IGCSE 0610 · 14 Coordination and response: hormones, homeostasis and tropic responsesSix 3D simulations covering Topic 14.3 Hormones, 14.4 Homeostasis and 14.5 Tropic responses. Find the endocrine glands, trigger adrenaline, race a hormone against a nerve impulse, keep blood glucose and body temperature steady, and grow seedlings towards light and against gravity. Tabs marked Extended cover the Supplement.
A hormone is a chemical substance, produced by a gland and carried by the blood, which alters the activity of one or more specific target organs. Click a gland to see the hormone it secretes.
When you are frightened or excited, the adrenal glands secrete adrenaline into the blood. It prepares the body for action. Trigger a fright and watch its effects.
Both systems coordinate the body, but differently. Send a nerve impulse and a hormone at the same moment and compare how fast they act and how long the effect lasts.
Homeostasis is the maintenance of a constant internal environment. Blood glucose is kept near a set point by negative feedback: the pancreas detects changes and secretes insulin or glucagon, and the liver responds. Eat a meal, exercise, or switch on Type 1 diabetes.
Mammals keep their core body temperature close to 37 °C. The brain monitors it and controls the skin's responses. Click the parts of the skin, then change the temperature of the surroundings.
Plants respond to stimuli by growing towards or away from them. Phototropism is a response to the direction of light; gravitropism is a response to gravity. Set up the experiments and let the seedlings grow.
Six interactive 3D simulations for Cambridge IGCSE Biology 0610 topic 14 Coordination and response, hormones, homeostasis and tropic responses: endocrine glands and their hormones, adrenaline and fight or flight, nervous versus hormonal control, blood glucose control by insulin and glucagon with Type 1 diabetes, the skin and body temperature control, and phototropism and gravitropism with auxin.
Six 3D simulations covering Topic 14.3 Hormones, 14.4 Homeostasis and 14.5 Tropic responses. Find the endocrine glands, trigger adrenaline, race a hormone against a nerve impulse, keep blood glucose and body temperature steady, and grow seedlings towards light and against gravity. Tabs marked Extended cover the Supplement.
Hormones, homeostasis and tropisms is a free, browser-based simulation for Cambridge IGCSE Biology 0610 (topic 14 Coordination and response, sections 14.3 Hormones, 14.4 Homeostasis, 14.5 Tropic responses). The course is assessed in Paper 1/2 (Multiple choice), Paper 3/4 (Theory), Paper 5 (Practical Test), Paper 6 (Alternative to Practical). Syllabus for examination in 2026-2028. There are 6 tabs, each a self-contained experiment with its own controls and live readings, and nothing to install: it runs on a laptop, tablet or classroom projector.
Full syllabus map: IGCSE Biology 0610 topic 14.
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