AQA A Level Biology复习笔记3.4.2 Haemoglobin & Oxygen
The Haemoglobin Group The haemoglobins are a group of chemically similar molecules that are found in many different organisms For example chimpanzee, rats and humans are just some of the org...
AQA A Level Biology复习笔记3.3.5 Visking Tubing Practical
Practical Skill: Visking Tubing Investigating the absorption of the products of digestion using Visking tubing Visking tubing (sometimes referred to as dialysis tubing) is a non-living parti...
AQA A Level Biology复习笔记3.3.4 Mechanisms of Absorption
Mechanisms of Absorption Digestion breaks down food into smaller, soluble molecules The products of digestion are absorbed through the intestinal lining The absorption of amino acids and mon...
AQA A Level Biology复习笔记3.3.3 Enzyme Rate Practical
Practical Skill: Investing Factors Affecting Enzyme Reaction Rates When an enzyme is kept in conditions that are outside its optimum pH the shape of its active site may change As a result, e...
AQA A Level Biology复习笔记3.3.2 Enzymes in Digestion
Enzymes in Digestion Enzymes are substrate specific, meaning different enzymes digest and breakdown the different biological molecules contained in food Digestive enzymes are extracellular e...
AQA A Level Biology复习笔记3.2.11 Correlations & Causal Relationships - The Lungs
Correlations & Causal Relationships - The Lungs Correlation is an association or relationship between variables Causation occurs when one variable has an influence or is influenced by an...
AQA A Level Biology复习笔记3.2.10 Evaluating Data on Lung Disease
Investigating Risk Factors & the Incidence of Lung Disease A risk factor is any factor that correlates with (is linked to) an increased chance of suffering from a particular condition or...
AQA A Level Biology复习笔记3.2.9 Pollution & Smoking
The Effects of Pollution & Smoking on the Incidence of Lung Disease Exposure to pollution and smoking are well-known risk factors in relation to lung disease Environmental pollution sour...
AQA A Level Biology复习笔记3.2.8 The Effects of Lung Disease
The Effects of Lung Disease There are several disorders or diseases that can prevent lungs from functioning properly They can affect the structure of the alveolar walls (gas exchange surface...
