Edexcel IGCSE Biology 復習筆記 2.9.5 Regulating Water Content in the Blood Regulating Water Content in the Blood Osmoregulation?is the process of maintaining water and salt concentrations (o...
Edexcel IGCSE Biology 復習筆記 2.9.4 Kidney Structure & Function The Kidney The kidneys are located in the back of the abdomen and have two important functions in the body: They regulate...
Edexcel IGCSE Biology 復習筆記 2.9.3 The Urinary System The Urinary System: Structure Two key functions of the?urinary system?are: To?filter waste?products from the blood and expel it from t...
Edexcel IGCSE Biology 復習筆記 2.9.2 Excretion in Humans The Organs of Excretion Humans have organs that are specialised for the removal of certain excretory products Excretory organs?of the...
Edexcel IGCSE Biology 復習筆記 2.9.1 Excretion The Need for Excretion in Humans Many of the necessary?metabolic reactions?that take place within the cells of organisms produce?waste products...
Edexcel IGCSE Biology 復習筆記 2.8.11 Blood Vessels & the Circulatory System Blood Vessels There are three main types of blood vessel: Arteries Veins Capillaries Smaller vessels t...
Edexcel IGCSE Biology 復習筆記 2.8.10 The Heart Structure & Function of the Heart The heart organ is a?double pump Oxygenated blood?from the lungs enters the?left?side of the heart and i...
Edexcel IGCSE Biology 復習筆記 2.8.8 Human Transport Systems: White Blood Cells & Immunity White Blood Cells White blood cells are part of the body’s immune system These specialised cells defen...
Uses of Genetic Fingerprinting Polymerase chain reaction?(PCR) is a common molecular biology technique used in most applications of gene technology, for example,?DNA profiling?(eg. identific...
