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8 Cards in this Set
- Front
- Back
4 Major Functions of Lipids |
1. Phospholipids serve as a structural component of membranes; 2. Triacylglycerols store metabolic energy and provide thermal insulation and padding; 3. Steroids regulate metabolic activities and; 4. Some fatty acids (eicosanoids) seven serves as local hormones |
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Lipoprotein Density |
HDL - High Density - more protein than lipid within lipoprotein molecule. LDL - Low Density - more lipid than protein within lipoprotein molecule. |
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Glucose vs. Fructose |
Glucose is more commonly metabolized than Fructose. (80% of the time) Glucose has 1 primary hydroxyl group and 1 primary sp2 Oxygen. Fructose has two primary Hydroxyl groups. |
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Carbohydrates vs. Lipids |
More hydroxyl groups in Carbohydrates than Lipids. Think of carbohydrates as a compound with molecule with a fixed 1:1 ratio between water and carbon. More energy stored in Lipids because higher concentration of C-H bonds. |
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Starch vs. Cellulose |
Starch = alpha linked molecule
Cellulose = beta linked molecule |
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Alpha linkage vs. Beta linkage |
Beta stability > alpha stability Only bacteria can breakdown beta linkages. Only animals can eat alpha linkages. |
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Division of Metabolism |
Catabolism - the breakdown of large molecule into smaller molecules (think catastrophic). Anabolism - the joining of smaller molecules, forming larger molecule (think Avengers). |
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How do you break Peptide bonds? |
Hydrolysis - a water molecule is used to break the peptide bond, forming two separate compounds (amino acids). |