OCR A Level Biology:复习笔记2.2.13 Fibrous Proteins
Fibrous Proteins Fibrous proteins?are long strands of polypeptide chains that have cross-linkages due to hydrogen bonds These proteins have little or no tertiary structure Due to a large number of?...
OCR A Level Biology:复习笔记2.2.12 Globular Proteins
Globular Proteins Globular Globular proteins?are?compact, roughly?spherical?(circular) in shape and?soluble?in water Globular proteins form a spherical shape when folding into their tertiary struct...
OCR A Level Biology:复习笔记2.2.11 Protein: Structure
Levels of Protein Structure There are?four?levels of structure in proteins, three are related to a single polypeptide chain and the fourth level relates to a protein that has two or more polypeptid...
OCR A Level Biology:复习笔记2.2.10 Amino Acids & Peptide Bonds
Amino Acids Proteins Proteins are?polypeptides?(and macromolecules) made up of monomers called?amino acids The sequence, type and number of the amino acids within a protein determines its shape and...
OCR A Level Biology:复习笔记2.2.9 Biochemical Tests: Lipids
Biochemical Tests: Lipids The?emulsion test?can be carried out quickly and easily in a lab to determine if a sample contains lipids Lipids are?nonpolar?molecules that do not dissolve in water but w...
OCR A Level Biology:复习笔记2.2.8 Lipids: Structure & Function
Lipids: Structure & Function Triglycerides Triglycerides are?fats and oils Fatty acid and glycerol molecules?are the components that make up triglycerides Fats and oils have a number of importa...
OCR A Level Biology:复习笔记2.2.7 Lipids & Ester Bonds
Lipids Lipids Lipids are macromolecules that contain carbon, hydrogen and oxygen atoms. Unlike carbohydrates, lipids contain a lower proportion of oxygen Lipids are?non-polar?and?hydrophobic?(insol...
OCR A Level Biology:复习笔记2.2.6 Biochemical Tests: Reducing Sugars & Starch
Biochemical Tests: Reducing Sugars & Starch There are a number of tests that can be carried out quickly and easily in a lab to determine if a sample contains a certain type of sugar The followi...
OCR A Level Biology:复习笔记2.2.5 Polysaccharides
Polysaccharides: Structure Starch,?glycogen?and?cellulose?are?polysaccharides Polysaccharides are macromolecules (polymers) that are formed by?many?monosaccharides joined by?glycosidic?bonds in a?c...
