Drawing structures

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    • #6134
      biology_06er
      Participant

      First off…Whats a good way to remember structures…I have a exam next thursday and whilst gng ova past tests I saw most questions were related to structure drawings of fatty acid oxdn, tyrosine synthesis, ketogenesis..ANYTHING metabolism….i counted around 50 or so i have to remeber-ANY useful adive on how to remember them-

      anyway my question is..
      i had to draw C16 acyl-CoA

      we were given CH3(CH2)11CH2……

      I finished it off by writing CH2CH2CO-CoA..

      is this right?

      Thanks
      biology_06er

    • #57427
      oppox
      Participant

      well eh no… I dont have this completly fresh but, havent u forgotten the 16 carbons?
      you said u were given CH3(CH2)11CH2…… was that all, that doesnt do much except making me not understanding why its given.

      oh now I understand, u were going to draw the rest of the molecule….bing bing the coin fell down now. you forgot the sulphur linking the carbon chain to the CoA (CO-S-CoA)

    • #57429
      biology_06er
      Participant

      Ok well besides the S linkage is it right?

      Is it ALWAYS written with a sulphur linkages CO-S-CoA–cos I’m preeety sure I’ve seen it without (I’ll have another look though)–but yeah is it best to write it with a S?

    • #57434
      oppox
      Participant

      yes I cant see any wrong with your answer except the S.

      I havent found it written as u got in this assignment, CH2CH2CO…
      only as structural forms so I cant answer that question for sure.

    • #57468
      biology_06er
      Participant

      I think people have misunderstood my question

      we were given the name C16 acyl-CoA and were asked to draw it and were given the starting…

      CH3(CH2)11CH2…and then I had to finish it off from there

      and I wrote CH2CH2CO-CoA (but now I would put in the S)

      so is my "filled in" answer correct (with the S)

      Thanks
      biology_06er

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