Flashcards
Carbohydrates
Cards in this deck (13)
- 1List the Functions of CarbohydratesEnergy Store
Mechanical support of cells
Structural Backbone in DNA and RNA
Extracellular Matrix; Glycocalyx
Cell to Cell recognition - 2Name Mono and Di saccharidesGlucose, Fructose, Galactose
Maltose, Sucrose, Lactose - 3Describe the structure and function of GlycogenEnergy Storage molecule.
Glyosidic bond 1 to 4. Normally, sometimes 1 to 6 bonding, this introduces branching. This occurs every 8-12 residues. - 4Structure and Function of GlycogenConsists of Amylose (Glc-a-1,4-Glc)
and Amylopectin normally 1,4 glyosidic bond. 1,6 bond every 24-30 residues - 5Structure and Function of CelluloseBeta glucose
1,4 bond
180 flip allows H bonds to form. - 6Draw an aldose and ketose
- 7Which carbon determines if a sugar is L or DCarbon above CH2OH in Fischer Projection.
- 8How is L and D determinedIf OH is on left it is L
If right it is D - 9What are epimersDiffer only at one chiral centre
- 10Structure and Function of Peptidoglycan2 repeating sub units; N acetyl mureic acid and N acetyl-d-glucosamine. Oligopeptides form between the chains.
Structural role in both gram positive and gram negative. - 11How does penicillin workstops glycopeptide transpeptidase activity. Only works with L form. Therefore some bacteria may have evolved D sugars to counteract.
- 12Describe GlycosalationAddition of sugar to protein. Can be N linked(asparagine) or O linked (serine or Threonine) Begins in ER ends in the Golgi (N linked) O linked only occurs in the golgi
- 13Discuss Extracellular MatricesProtein and Carb. found between cells
Glycosaminoglycans
Hyaluronic acid
Chrindroitin-6-sulphate
Keratan Sulphate
Bind to water regulate movement of cells
Proteoglycans are proteins bound to glycosaminoglycans
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- Chemistry Flashcards on Carbohydrates , created by William Lock on 11/02/2019.
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- William Lock
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