Edexcel IGCSE Biology 复习笔记 2.4.5 Active Transport
Edexcel IGCSE Biology 复习笔记 2.4.5 Active Transport Active Transport Theory Active transport is: The movement of particles through a cell membrane from a region of lower concentrati...
AQA A Level Biology复习笔记6.1.9 Investigating Touch and Temperature Receptors
Investigating Touch and Temperature Receptors on Skin Within the human skin, there are many temperature and touch receptors that enable humans to interpret and respond to their environment E...
Edexcel IGCSE Biology 复习笔记 2.4.4 Practical: Osmosis
Edexcel IGCSE Biology 复习笔记 2.4.4 Practical: Osmosis Practical: Factors that Influence Osmosis Osmosis is the diffusion of water molecules from a dilute solution (high concentration of water) to...
AQA A Level Biology复习笔记6.1.8 Generator Potential
Establishment of a Generator Potential When Pacinian corpuscles are stimulated by pressure on the skin this leads to the establishment of a generator potential This happens due to the moveme...
Edexcel IGCSE Biology 复习笔记 2.4.3 Osmosis
Edexcel IGCSE Biology 复习笔记 2.4.3 Osmosis Osmosis Theory All cells are surrounded by a cell membrane which is partially permeable Water can move in and out of cells by osmosis Osmosis is ...
AQA A Level Biology复习笔记6.1.7 The Pacinian Corpuscle
The Pacinian Corpuscle Humans possess a wide range of receptor cells that can detect and respond to a large variety of stimuli For example, temperature, taste, sound, heat and light T...
AQA A Level Biology复习笔记6.1.6 Causes of Animal Movement
Investigating Environmental Factors That Cause Animal Movement Environmental factors can be abiotic or biotic Abiotic factors are the non-living parts of an environment For example: temperat...
AQA A Level Biology复习笔记6.1.5 Reflex Arcs
Reflex Arcs There are three main types of neurone: sensory, relay and motor Sensory neurones carry impulses from receptors to the Central Nervous System (CNS - the brain or spinal cord) Rela...
Edexcel IGCSE Biology 复习笔记 2.4.1 Diffusion
Edexcel IGCSE Biology 复习笔记 2.4.1 Diffusion Diffusion Theory Diffusion is the movement of molecules from a region of its higher concentration to a region of its lower concentration Molecu...
