Bio-Chem Module 5 Exam Questions &
Definitions.
Lipid - Answer: An organic molecule that dissolves in non-polar solvent
-non-polar
-characterized by function not structure*
Lipid Clasifications - Answer: 1. Fatty Acid
2. Triacylglycerides
3. Phosphoglycerides
4. Sphingophospholipids
5. Isoprenoid Compounds
Lipid Functions - Answer: 1. energy
2. storage
3. vitamin
4. protection
5. insulation
Carotenoid molecules - Answer: possess vibrant colors
Zeaxanthin - Answer: yellow; finch & pedobacterheparinus
-protection from harmful UV rays
, Fatty Acids - Answer: Consists of a long carbon chain containing carboxylic acid
function group at one end (-COOH)
-chain length varies 8-30 carbons
-most often even numbered w/ chains of 12-24 carbons typical
Saturated - Answer: with Hydrogen, so no double bonds
Simplified Notation - Answer: 14:0 - 14 carbons, no double bonds
16:1 (Δ9) - 16 carbons, 1 double bond at carbon 9
Unsaturated - Answer: Contain one or more double bonds
-'kinky'
Polyunsaturated Fatty Acid (PUFA) - Answer: Contain 2 or more double bonds in a
single FA chain
*require less energy to digest
"good fat"
Omega System - Answer: Indicates the position of the double bond end opposite
of the -COOH group
-numbered from the -CH3 end of molecule
*discussing FA's in human diet
Triacylglyceride - Answer: Long chains of carbon and Hydrogen in the form of FA
chains
Definitions.
Lipid - Answer: An organic molecule that dissolves in non-polar solvent
-non-polar
-characterized by function not structure*
Lipid Clasifications - Answer: 1. Fatty Acid
2. Triacylglycerides
3. Phosphoglycerides
4. Sphingophospholipids
5. Isoprenoid Compounds
Lipid Functions - Answer: 1. energy
2. storage
3. vitamin
4. protection
5. insulation
Carotenoid molecules - Answer: possess vibrant colors
Zeaxanthin - Answer: yellow; finch & pedobacterheparinus
-protection from harmful UV rays
, Fatty Acids - Answer: Consists of a long carbon chain containing carboxylic acid
function group at one end (-COOH)
-chain length varies 8-30 carbons
-most often even numbered w/ chains of 12-24 carbons typical
Saturated - Answer: with Hydrogen, so no double bonds
Simplified Notation - Answer: 14:0 - 14 carbons, no double bonds
16:1 (Δ9) - 16 carbons, 1 double bond at carbon 9
Unsaturated - Answer: Contain one or more double bonds
-'kinky'
Polyunsaturated Fatty Acid (PUFA) - Answer: Contain 2 or more double bonds in a
single FA chain
*require less energy to digest
"good fat"
Omega System - Answer: Indicates the position of the double bond end opposite
of the -COOH group
-numbered from the -CH3 end of molecule
*discussing FA's in human diet
Triacylglyceride - Answer: Long chains of carbon and Hydrogen in the form of FA
chains
