Bioc 2580 Exam 2024/2025 Exam
Questions and Answers 100%
Guaranteed Success | Already Rated A+
naming fatty acids simplified - 🧠ANSWER ✔✔-specifies number of Cs
followed by number of double bonds separated by a colon
-position of double bonds is specified relative to the carbonyl carbon
naming fatty acids pufa - 🧠ANSWER ✔✔-specify position of double bonds
relative to the methyl carbon
commonly occurring saturated fatty acids - 🧠ANSWER ✔✔12 laurate, 14
myristate, 16 palmitate, 18 stearate, 20 arachidate (LMPSA)
trans fatty acids - 🧠ANSWER ✔✔-partial hydrogenation of unsaturated fats
isomerizes double bonds
-allows fatty acid to adopted extended configuration
solubility and melting point of saturated fats - 🧠ANSWER ✔✔-saturated
chains adopt extended configurations and pack in an orderly way
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
1
STATEMENT. ALL RIGHTS RESERVED
,-as chain length increases melting point increases and solubility decreases
melting point and double bonds - 🧠ANSWER ✔✔- unsaturated fats pack
less regularly due to kink cause by cis double bonds, lowering favourable
interactions
-less thermal energy is required to disrupt disordered packing
-melting temperature is drastically lowered
-trans fatty acids can pack more regularly and have higher melting points
than cis forms
triacylglycerols - 🧠ANSWER ✔✔-3 fatty acids linked to a glycerol molecule
through ester linkages
-major constituent of bulk fats and oils
-highly hydrophobic, as the polar carboxylic acids are tied up as esters
-melting point depends on the length and degree of saturation
phosphate derivatives - 🧠ANSWER ✔✔-phosphoric acid is a triprotic acid
-at neutral pH it exists as an equilibrium of H2PO4- and HPO4-2
-mixture is represented as Pi
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
, -phosphoylation adds negative charges to molecules, leading to an
increase in water solubility
glycerophospholipids - 🧠ANSWER ✔✔-primary constituent of biological
membranes
-carbon atoms 1 and 2 of glycerol are esterified to 2 fatty acids (tail) with a
highly charged group attached through a phosphodiester linkage to the
third (head)
-they are ampiphatic, allowing them to form lipid bilayers
phosphatidylcholine - 🧠ANSWER ✔✔-net charge 0
phosphatidylethanolamine - 🧠ANSWER ✔✔-net charge 0
phosphatidylserine - 🧠ANSWER ✔✔-net charge -1
phosphatidylglycerol - 🧠ANSWER ✔✔-net charge -1
lipid complexes - 🧠ANSWER ✔✔-fatty acids aggregate to form spherical
micelles
-hydrophobic tails are too bulky to pack together in micells, so they form
bilayers which fold back on themselves to form liposomes/vesicles
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
Questions and Answers 100%
Guaranteed Success | Already Rated A+
naming fatty acids simplified - 🧠ANSWER ✔✔-specifies number of Cs
followed by number of double bonds separated by a colon
-position of double bonds is specified relative to the carbonyl carbon
naming fatty acids pufa - 🧠ANSWER ✔✔-specify position of double bonds
relative to the methyl carbon
commonly occurring saturated fatty acids - 🧠ANSWER ✔✔12 laurate, 14
myristate, 16 palmitate, 18 stearate, 20 arachidate (LMPSA)
trans fatty acids - 🧠ANSWER ✔✔-partial hydrogenation of unsaturated fats
isomerizes double bonds
-allows fatty acid to adopted extended configuration
solubility and melting point of saturated fats - 🧠ANSWER ✔✔-saturated
chains adopt extended configurations and pack in an orderly way
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
1
STATEMENT. ALL RIGHTS RESERVED
,-as chain length increases melting point increases and solubility decreases
melting point and double bonds - 🧠ANSWER ✔✔- unsaturated fats pack
less regularly due to kink cause by cis double bonds, lowering favourable
interactions
-less thermal energy is required to disrupt disordered packing
-melting temperature is drastically lowered
-trans fatty acids can pack more regularly and have higher melting points
than cis forms
triacylglycerols - 🧠ANSWER ✔✔-3 fatty acids linked to a glycerol molecule
through ester linkages
-major constituent of bulk fats and oils
-highly hydrophobic, as the polar carboxylic acids are tied up as esters
-melting point depends on the length and degree of saturation
phosphate derivatives - 🧠ANSWER ✔✔-phosphoric acid is a triprotic acid
-at neutral pH it exists as an equilibrium of H2PO4- and HPO4-2
-mixture is represented as Pi
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
, -phosphoylation adds negative charges to molecules, leading to an
increase in water solubility
glycerophospholipids - 🧠ANSWER ✔✔-primary constituent of biological
membranes
-carbon atoms 1 and 2 of glycerol are esterified to 2 fatty acids (tail) with a
highly charged group attached through a phosphodiester linkage to the
third (head)
-they are ampiphatic, allowing them to form lipid bilayers
phosphatidylcholine - 🧠ANSWER ✔✔-net charge 0
phosphatidylethanolamine - 🧠ANSWER ✔✔-net charge 0
phosphatidylserine - 🧠ANSWER ✔✔-net charge -1
phosphatidylglycerol - 🧠ANSWER ✔✔-net charge -1
lipid complexes - 🧠ANSWER ✔✔-fatty acids aggregate to form spherical
micelles
-hydrophobic tails are too bulky to pack together in micells, so they form
bilayers which fold back on themselves to form liposomes/vesicles
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
