Test
Week 4 Lecture
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Preguntas del test (37)
1Define Lipids.
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2Lipids are are soluble oraganic solvents including
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3Fatty acid short chains have: 2-4 Carbon atoms.
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4Fatty acids medium chain have: 12-26 C atoms?
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5Fatty acids long chain have: 12-26 C atoms?
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6Fatty acids are:
- AStraight chain hydrocarbons with a carboxyl end
- BStraight chain hydrocarbons alcohol group
7What is the difference between saturated and non-saturated fatty acids?
- AUnsaturated are hydrophilic and saturated are hydrophilic.
- BUnsaturated are longer that saturated
- CSaturated are more commonly consumed than unsaturated
- DUnsaturated have double bonds and saturated have no double bonds.
8The molecule CH3(CH2)3CH=CH(CH2)7COOH has an omega reference of?
- A5:1 n-4
- B8:1 n-4
C=8 Bond=1 Bond number=4
9The omega system that has multiple bonds shows this by only showing the first bond. This is because it is assumed that the second bond comes 4 carbons after.
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10Is this 18:2 ^ 9,12 the:
- AStandard Notation
- BOmega Notation
11What is in this molecule? 18:2 n-6
- A18 Carbon
- B1 bond
- C2 bonds
- DBond at 6th carbon
- EOther bond at 8th carbon
- FOther bond at 9th carbon
12The Omega system counts from the?
- ACarboxy end
- BMethyl end
13Standard notation counts from the
- ACarboxyl End
- BMethyl end
14Triglycerides are composed of 6 fatty acids and 2 glycerol
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15Fatty acids can't circulate in blood seperated because:
- AThey cause plague formation
- BThey are basic
- CThey are acidic
16Fatty acids can be stores alone
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17A triglyceride is the most commonly consumed form of lipids
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18 Ester bond is compound formed from an alcohol and an acid by removal of water.
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19An ester bond looks like O2CH
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20Cholesterol is:
- AA sterol.
- BA monohydroxy alcohol
- CLarge
- DHydrophilic
- EFree formed
- FIn cholesteryl ester
21Free formed cholesterol contains a fatty acid attached to the hydroxyl group at C-3
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22When measuring cholesterol measure the:
- AFree forms
- BCholersterol Ester
- CCholersterol Ester & Free forms
23The difference between a cholesterol and a cholesterol ester is that the cholesterol ester has a fatty acid attached to the alcohol group.
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24Phospholipids
- AAre triglycerides
- BAre similar to cholesterol esters
- CContain polar group
- Dcontain phosphate
- EContain alcohol
- Fglycerol
- Ghydrophobic
- Hone or more fatty acids
25Glycerol functions
- ATo bind fatty acids together
- BTo make fatty acids pH neutral
26The two groups of of phospholipids are phosatidic acid and glycerophosphatides
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27That is one group of phospholipid?
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28The other group of phosolipids is ethanolamine
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29The other group of phospholipid is sphingophosphatides
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30Phospholipids has 2 esters and 2 fatty acids.
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31What is the anatomy of a glyerophophate.
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32Attached to phosphatidic acid are
- Aalcohol groups
- Bserine
- Cinositol
- Dethanolamine
- Echoline
33LCAT is:
- ALecithin—cholesterol acyltransferase
- BConverts free cholesterol into cholesteryl ester
- CEnzyme
34LCAT is:
- ALecithin—cholesterol acyltransferase
- BConverts free cholesterol into cholesteryl ester
- CEnzyme
35What is a blood lipoprotein?
- ABig balls of lipoprotiens surrounded by a protein coast
- BSimilar in numeric structure to a phospholipid
- CPhospholipids are the passengers and the protein coat is the bus
36Structure of a blood lipoproteins.
Outer most - Inner most
1. Phospholipid layer - same layer contains:
Unesterified cholesterol
2. Apolipoprotein (spans outer phosopholipid layer; function: receptors and transporters)
3. Cholesterol ester (ester's have increased hydrophobicity therefore are in centre hiding from blood)
4. Triglycerides- AVerdadero
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37Hydrophobic core means that two phosolipid layers can be found on a blood lipoprotein.
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Información
- Descripción
- University Biochemistry Test sobre Week 4 Lecture, creado por Leah MacDonald el 20/08/2014.
- Autor
- Leah MacDonald
- Idioma
- English
- Visitas
- 14
- Etiquetas
- Valoración
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