IB DP Biology: SL复习笔记2.4.2 Immobilised Enzymes
Immobilised Enzymes Immobilised enzymes are widely used in industry Just before 1900, it was discovered that enzymes could be used to catalyse production of alcohol in the absence of yeast cell Sin...
IB DP Biology: SL复习笔记2.4.1 Enzymes
Structure of Enzymes Enzymes are?biological catalysts ‘Biological’ because they function in?living systems ‘Catalysts’ because they?speed up the rate of chemical reactions?without being used up or ...
IB DP Biology: SL复习笔记2.3.4 Skills: Molecules
Molecular Diagrams: Drawing Drawing biological molecules It is important to be able to?draw a few key molecules There is a huge variety of biological molecules, but?only the most important ones?are...
IB DP Biology: SL复习笔记2.3.3 The Variety of Proteins
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...
IB DP Biology: SL复习笔记2.3.2 Protein Structure & Function
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...
IB DP Biology: SL复习笔记2.3.1 Proteins
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...
IB DP Biology: SL复习笔记2.2.5 Skills: Calculating BMI
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...
IB DP Biology: SL复习笔记2.2.4 Skills: Visualising Carbohydrates
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...
IB DP Biology: SL复习笔记2.2.3 Lipids
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...
