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...
Edexcel IGCSE Biology 复习笔记 2.3.5 Practical: Enzymes & pH
Edexcel IGCSE Biology 复习笔记 2.3.5 Practical: Enzymes & pH Practical: Enzymes & pH Amylase is an enzyme that digests starch (a polysaccharide of glucose) into maltose (a disacchari...
AQA A Level Biology复习笔记6.1.4 Taxis & Kinesis
Taxis & Kinesis An organism must find favourable living conditions in order to survive For complex organisms like monkeys and wolves, this seems like an easy process They possess eyes, e...
Edexcel IGCSE Biology 复习笔记 2.3.4 Practical: Enzymes & Temperature
Edexcel IGCSE Biology 复习笔记 2.3.4 Practical: Enzymes & Temperature Practical: Enzymes & Temperature Amylase is an enzyme that digests starch (a polysaccharide of glucose) into mal...
Edexcel IGCSE Biology 复习笔记 2.3.3 Enzymes
Edexcel IGCSE Biology 复习笔记 2.3.3 Enzymes Enzymes as Biological Catalysts Enzymes Enzymes are proteins that act as biological catalysts to speed up the rate of a chemical reaction without being ...
AQA A Level Biology复习笔记6.1.3 Indoleacetic Acid (IAA)
Indoleacetic Acid (IAA) Indoleacetic acid (IAA) is a specific growth factor found in plants IAA is synthesised in the growing tips of roots and shoots (ie. in the meristems, where cells are ...
