Coordination
- Created by: Mark18
- Created on: 18-05-14 18:16
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- Coordination
- Hormonal System
- Hormones transported in blood
- Slower, long lasting and widespread
- Can affect multiple organs
- Affects cells with specific complementary receptors
- Glucose regulation and menstrual cycle
- Nervous System
- Electrical Impulses
- Release of neurotransmitters
- Rapid transmission
- Localised and temporary effect
- Targets specific areas of the body
- Synapses and neurones
- Chemical mediators
- Histamine
- Stored in white blood cells, triggered by allergens
- Swelling and redness
- Prostaglandins
- Dilation of arterioles increases permeability of capillaries
- Histamine
- Stored in white blood cells, triggered by allergens
- Swelling and redness
- Histamine
- Stored in cell membranes
- Affect blood pressure and neurotransmitters
- Dilation of arterioles increases permeability of capillaries
- Histamine
- Plant Growth Factors
- Used to respond to: light, gravity, water
- Made by cells throughout the plant
- Affect tissues that release them rather than a distant organ
- IAA causes elongation of cells on shaded side
- Hormonal System
- Prostaglandins
- Dilation of arterioles increases permeability of capillaries
- Stored in cell membranes
- Affect blood pressure and neurotransmitters
- Dilation of arterioles increases permeability of capillaries
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