IGCSE Biology Edexcel 4BI1

2: (c) Biological molecules

#2.10

understand the role of enzymes as biological catalysts in metabolic reactions

#2.11

understand how temperature changes can affect enzyme function, including changes to the shape of active site

#2.12

practical: investigate how enzyme activity can be affected by changes in temperature

#2.13

understand how enzyme function can be affected by changes in pH altering the active site

#2.14B

practical: investigate how enzyme activity can be affected by changes in pH

#2.7

identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils)

#2.8

describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units: starch and glycogen from simple sugars, protein from amino acids, and lipid from fatty acids and glycerol

#2.9

practical: investigate food samples for the presence of glucose, starch, protein and fat

2
(b) Cell structure
2
(d) Movement of substances into and out of cells
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