Edexcel IGCSE Biology 復習筆記 2.5.8 Humans: The Digestive System
Edexcel IGCSE Biology 復習筆記 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 復習筆記 2.5.7 Humans: Balanced Diet
Edexcel IGCSE Biology 復習筆記 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復習筆記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 復習筆記 2.5.6 Practical: Investigating Chlorophyll & Photosynthesis
Edexcel IGCSE Biology 復習筆記 2.5.6 Practical: Investigating Chlorophyll & Photosynthesis Practical: Investigating Chlorophyll and Photosynthesis Starch is stored in chloroplasts where ...
AQA A Level Biology復習筆記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復習筆記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復習筆記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復習筆記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...
AQA A Level Biology復習筆記6.1.14 Calculating Cardiac Output
Calculating Cardiac Output Cardiac output?(CO) is the term used to describe the volume of blood that is pumped by the heart (the left and right ventricle) per unit of time An average adult h...
