More AS Biology F211 and F212 0.0 / 5 ? BiologyBiological moleculesASOCR Created by: Amy CockingCreated on: 26-10-13 15:55 Magnification Using lenses to make an image appear larger than reality 1 of 15 Resolution The ability of the eyes or an optical instrument to distinguish between two close points without them merging 2 of 15 SEM Properties 3D image, scans the surface of the object 3 of 15 TEM Properties 2D image, scans through the object 4 of 15 Electron Microscope Magnification and Resolution 500,000x and 1nm 5 of 15 Light Microscope Magnification and Resolution 2000x and 200nm 6 of 15 Extrinsic proteins are usually for: Cell recognition, cell adhesion and hormone binding sites 7 of 15 Amylose Structure Alpha glucose chain, 1,4 glycosidic links, coil/helix shape 8 of 15 Amylopectin Structure Straight chain of alpha glucose, 1,6 glycosidic links, branched 9 of 15 Cellulose Beta glucose chain, has both glycosidic links and hydrogen bonds 10 of 15 Collagen Structure Fibrous protein, triple helix shape, insoluble in water, primary structure contains repeated glycine 11 of 15 Define Primary Structure The order/sequence of amino acids 12 of 15 Define Secondary Structure The folding of the protein to form alpha helices, beta pleated sheets and random coils 13 of 15 Define Tertiary Structure Interactions between R groups causing bonds to form such as disulphide bridges, ionic bonds and hydrophobic interactions 14 of 15 Keratin Structure/ Properties Fibrous protein, insoluble in water, contains cysteine - disulphide bridges form 15 of 15
Comments
No comments have yet been made