AQA A Level Biology复习笔记6.2.7 Cholinergic Synapses
Cholinergic Synapses Where two neurones meet, they do not actually come into physical contact with each other – a very small gap, known as the synaptic cleft, separates them The ends of the ...
Edexcel IGCSE Biology 复习笔记 2.5.8 Humans: The Digestive System
Edexcel IGCSE Biology 复习笔记 2.5.8 Humans: The Digestive System The Structure & Function of the Alimentary Canal The digestive system is an example of an organ system in which several ...
Edexcel IGCSE Biology 复习笔记 2.5.7 Humans: Balanced Diet
Edexcel IGCSE Biology 复习笔记 2.5.7 Humans: Balanced Diet The Importance of a Balanced Diet A balanced diet consists of all of the food groups in the correct proportions The necessar...
AQA A Level Biology复习笔记6.2.6 Maths Skill: Calculating Maximum Impulse Frequency
Calculating the Maximum Frequency of Impulse Conduction After an action potential passes through a section of an axon it undergoes a period of recovery and is unresponsive This is known as t...
Edexcel IGCSE Biology 复习笔记 2.5.6 Practical: Investigating Chlorophyll & Photosynthesis
Edexcel IGCSE Biology 复习笔记 2.5.6 Practical: Investigating Chlorophyll & Photosynthesis Practical: Investigating Chlorophyll and Photosynthesis Starch is stored in chloroplasts where ...
AQA A Level Biology复习笔记6.2.5 Speed of Conduction of Impulses
Factors that Affect the Speed of Conduction The speed of conduction of an impulse refers to how quickly the impulse is transmitted along a neurone It is determined by multiple factors: The p...
AQA A Level Biology复习笔记6.2.4 The Refractory Period
The Refractory Period Very shortly (about 1 ms) after an action potential has been generated in a section of the axon membrane, all the sodium ion voltage-gated channel proteins in this sect...
AQA A Level Biology复习笔记6.2.3 Nerve Impulses
Action Potentials Neurones transmit electrical impulses, which travel extremely quickly along the neurone cell surface membrane from one end of the neurone to the other Unlike a normal elect...
AQA A Level Biology复习笔记6.2.2 Resting Potentials
Resting Potentials Neurones transmit electrical impulses, which travel extremely quickly along the neurone cell surface membrane from one end of the neurone to the other In a resting axon (o...
