Karteikarten
Water Insoluble Compounds
Karten in diesem Stapel (13)
- 1What are biominerals?- inorganic compounds that have exceeded their solubility products and precipitated
- 2Define the solubility product.- maximum point at which a compound is dissolved
- 3What are the two biomineralisation pathways?1. crystal growth/precipitation within an intracellular vesicle
2. precipitation within an intra or extracellular protein or polysaccharide matrix - 4What is the purpose of biomeralisation?- strength
- sensors
- stores - 5What governs the solubility of macromolecules? Give examples.- polarity of surface groups
- molecular weight - 6What are lipids?- low mw organic molecules, non-polar
- few nitrogen or oxygens
- insoluble - 7What are simple lipids?- fatty acids with long hydrocarbon chains
- 8Describe esterification.- fatty acids + glycerol = triglycerides
- 9Give the key features of triglycerides.- highly insoluble
- energy stores
- unsaturated or saturated - 10What are amphipathic lipids? Give examples.- have hydrophobic and hydrophilic properties
- part polar, part non-polar
- usually derivatives of glycerol of sphingosine
- phospholipids, cholesterol, glycolipids - 11Give the role of amphipathic lipids.- often form lipids bilayers, micelles
- polarity causes specific orientation - 12What are other biological lipids?- waxes
- terpenes and terpenoids
- steroid hormones derived rom cholesterol - 13What is the hydrophobic effect?- water molecules adjacent to non-polar groups = constrained
- contact area must be minimised
- forces more ordered, less random arrangement
- random process but driven by increased thermodynamic stability
- minimises disruption of the water network
Informationen
- Beschreibung
- Prelims Cells Karteikarten am Water Insoluble Compounds, erstellt von Kirstin Latimer am 06/01/2016.
- Erstellt von
- Kirstin Latimer · Jan 2016
- Aktualisiert
- 19 Feb 2016
- Aufrufe
- 0
- Tags
- Bewertung