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BIOC 3021 Chapter 11 Review Set Exam Questions and Answers 100% Solved $10.99
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BIOC 3021 Chapter 11 Review Set Exam Questions and Answers 100% Solved

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  • BIOC 3021
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  • BIOC 3021

BIOC 3021 Chapter 11 Review Set Exam Questions and Answers 100% Solved Sterols - as hormones. have a perhydrocyclopentaneophenanthrene ring structure. not aromatic and not planar Fatty acids - linear hydrocarbons with 1 carboxyl group at one end and many methylene groups in the side chain. ge...

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  • December 7, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIOC 3021
  • BIOC 3021
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JOSHCLAY
BIOC 3021 Chapter 11 Review Set Exam

Questions and Answers 100% Solved


Sterols - ✔✔as hormones. have a perhydrocyclopentaneophenanthrene

ring structure. not aromatic and not planar

Fatty acids - ✔✔linear hydrocarbons with 1 carboxyl group at one end and

many methylene groups in the side chain.



generally have even number of C because they are synthesized and

degraded 2 C at a time.



most range from 12-24 C



hydrophobic character increases as the chain length increases



double bonds increases the solubility of the compounds in water and

decreases their melting point

Triaglycerols - ✔✔major storage lipids


1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

,3 FA esterified to glycerol



relatively non-polar, highly reduced(saturated)

Phosphoglycerols - ✔✔membrane components.



2 FA, glycerol, phosphate, ionic or polar alcohol



FA at position 2 = unsaturated

FA at 1 = saturated



phosphatidyl choline (lecithin) is its derivative

Sphingolipids - ✔✔membrane functions. similar overall structure and

similar capacity in biological membranes

Poluisoprenoid - ✔✔resembles polymers of isoprene but have a very

different biochemical origin. Vitamin A and beta-carotene.

Which lipid types serve as energy storage material, membrane

components, hormones, biological detergents, insulating material and

vitamins? - ✔✔Energy storage - Triaglycerols


2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

, Membrane components - phosphoglycerol (phospholipids)



hormones - sterols



biological detergents - bile acids



Insulating material - phospholipid & sphingomyelin



vitamins - polyisoprenoid

What are the most common characteristics and functions of fatty acids, and

how do these properties change with the size and degree of unsaturation of

the fatty acid? - ✔✔characteristics:

1) highly hydrophobic (non-polar) so can be extracted into non-polar

solvents (chloroform etc.)

2) most reduces of the biological polymers so can potentially release the

most energy per gram upon biological oxidation.

3) limited solubility in water, but often have some amphipathic character

(some region of polarity)



3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

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