TAMU Biology Lab practical review Questions and Answers 100% Pass

TAMU Biology Lab practical review Questions and Answers 100% Pass functional group - Answer- components of a biochemical molecule, identifies the type of biomolecule hydroxyl group - Answer- a functional group found in alcohols and sugars, polar, OH carbonyl group - Answer- found in carbohydrates, two types terminal aldehyde and an internal ketone one or the other on every monosaccharide carboxyl - Answer- found in fatty acids and amino acids, acidic, double bond between carbon and oxygen and a single bond between carbon to hydroxyl, CO2H or COOH Amino group - Answer- In every amino acid, given away by nitrogen NH2 Macromolecule - Answer- a giant molecule made up of other smaller molecules usually made by a condensation reaction monomer - Answer- a single sub unit, the building block of a polymmer polymer - Answer- a long molecule made up of two or more monomers dehydration synthesis - Answer- also known as condensation, links monomers to polymers, connected by removal of water hydrolisis - Answer- covalent bonds connect monomers into polymers carbohydrates - Answer- a macromolecule who's major functions include carbon supply, structural components, fuel (glucose) and storage of glucose (polysaccharides) monosaccharides - Answer- simple sugars, trioses or pentoses with 5 or 5 carbon atoms, have the functional groups aldose and ketose disaccharides - Answer- consists of two monosaccharides polysaccharides - Answer- chains of linked monosaccharides, three or more, includes starch, glycogen and cellulose starch - Answer- a polysaccharide that is stored food in plants and is composed of amylose and amylopectin glycogen - Answer- stored food animals, is a polysaccharide cellulose - Answer- a polysaccharide found in cell walls of plants reducing sugars - Answer- contains a free aldehyde or ketone group, includes all monosaccharides and disaccharides with a free aldehyde or ketone benedict's test - Answer- tests for the presence of a reducing sugar any color change - Answer- a positive test result for benedicts test ketone - Answer- when the carbonyl group is within the structure aldehyde - Answer- when the carbonyl group is on either end of the molecule lugol's solution - Answer- a solution that tests for starcg purple color - Answer- positive lugol's result is Lipids - Answer- a non polar macromolecule that includes triglycerides, steroids and phospholipids, major functions include energy storage, membrane material and insulation saturated lipid - Answer- a lipid with all bonds between carbon and hydrogen being single bonds. and no double bonds, straight chains solid at room temperature unsaturated lipids - Answer- some carbon carbon bonds are double bonded, chain is somewhat bent, liquid at room temperature triglyceride - Answer- glycerol, 3 fatty acids phospholipids - Answer- the lipid that makes up membrane, built of glycerol, phosphate group and 2 fatty acids sterols - Answer- 4 interconnected rings, cholesterol, hormones, bile lipid chromatography - Answer- a test that looks at the solubility of lipids and uses iodine staining emulsification and sudan IV - Answer- tests that dye lipids