Functions of Proteins Living organisms synthesize many different proteins with a wide range of functions Proteins are so?versatile?that they have many different roles in cells, tissues and organs A...
Protein structure A protein may consist of a single polypeptide or more than one polypeptide linked together Some proteins exist as a?single polypeptide chain?(of amino acids) Other proteins are ma...
Amino Acids & Polypeptides Proteins Proteins are polymers (and macromolecules) made of monomers called?amino acids The?sequence, type?and?number?of the amino acids within a protein determines i...
Body Mass Index Calculations Body Mass Index (BMI) is a?rough and ready measure?of a person’s mass in relation to their height The calculation of BMI is as follows A BMI below 18.5 is considered?un...
Molecular Visualisation: Carbohydrates Online learning tools?exist that can provide?visualisations?of large biomolecules Mouse functions can?zoom?and?rotate?molecules Many of these make use of?JMol...
Long Term Storage Lipids are excellent storage compounds Lipid macromolecules, like carbohydrates, contain?carbon, hydrogen?and?oxygen?atoms However, unlike carbohydrates, lipids contain?a low prop...
Fatty Acids: Types Triglycerides are a form of lipid, made up of one molecule of?glycerol?with three?fatty acids?attached to it These fatty acids have?long hydrocarbon ‘tails’ Fatty acids occur in?...
Edexcel IGCSE Geography 復習筆記 4.3.3 Management of Energy Sources Sustainable Energy Management Sustainable?energy management is essential if future generations are to have the energy resources t...
Edexcel IGCSE Geography 復習筆記 4.3.2 Types of Energy Sources Non-Renewable Energy Non-renewable energy are energy sources which are?finite?and will eventually run out. They include: Gas Oil Coal ...
