Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.6.2 Types of Respiration Aerobic Respiration Aerobic respiration requires oxygen It is defined as the chemical reaction in cells that uses oxygen to break down nutr...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.6.1 Energy ATP Organisms need energy for things such as: Chemical reactions?to build larger molecules from smaller molecules Muscle contraction?to allow move...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.5.12 The Energy Content of Food Practical: Energy Content of a Food Sample We can investigate the energy content of food in a simple calorimetry experiment A...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.5.11 Absorption Absorption of Food & Water The Stages of Food Breakdown Food taken into the body goes through several?different stages?during its ...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.5.10 Humans: Bile Bile Production Bile is an?alkaline?substance produced by cells in the?liver Before being released into the?small intestine?bile is stored ...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.5.9 Humans: Digestive Enzymes The Role of Digestive Enzymes The purpose of digestion is to?break down large, insoluble molecules?into?smaller, soluble molecu...
Edexcel IGCSE Biology 復(fù)習(xí)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(fù)習(xí)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...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.5.6 Practical: Investigating Chlorophyll & Photosynthesis Practical: Investigating Chlorophyll and Photosynthesis Starch is stored in chloroplasts where ...
