bio110 1 - EXAM#1 Tutorials 1-6 Tutorial#2 Properties of...

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EXAM #1 Tutorials 1-6 Tutorial #2 Properties of Water and Macromolecules Water: Water is a polar molecule Hydrogen bonds hold water together -creates cohesion High specific heat 4 Main Classes of Bio-Macromolecules: Carbohydrates Proteins Nucleic acids Lipids Carbohydrates: Carbon, oxygen, hydrogen Formula: C n (H 2 O) n Monosaccharaides are monomers of carbohydrates -Glucose, fructose Disaccharides are two monosaccharaides -Sucrose, lactose, maltose -Formed via dehydration synthesis (loss of water molecule to link) Polysaccharides: -Glycogen, chitin, starches, cellulose -Energy storage -Structural Proteins: Amino acids= monomers of proteins R-groups form H-bonds with neighbors, leads to protein folding
Structures of Proteins: Lipids: Carbon and hydrogen equally electronegative Non-polar makes the molecule hydrophobic Generally single molecules Saturated Lipid - each carbon bonded to the maximum amount of hydrogen Unsaturated Lipid - has double bonds between carbons Phospholipids -amphipatic= hydrophilic and hydrophobic
-forms phospholipid bilayers= cell membranes Steriods/ sex hormones are lipids

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