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BusySpR MRCOG PART I - BIOCHEMISTRY
MRCOG Part 1 , MRCOG I

1400 SBAs. ALL are recalls from last 10 years MRCOG 1 exams. 

 

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Forum >> cofactors
cofactors Posted by javeria S.
Fri Jan 13, 2012 03:00 pm

Enzyme cofactors

May be inorganic ions                True False                      Your answer: False                Correct answer: True

 

The notes say that both coenzyme and prosthetic groups have organic molecules.May be I am missing something . Can someone explain why  is it marked true 

Notes Posted by PAUL A.
Sat Jan 14, 2012 12:13 pm

This is what the notes say:

 

 

COFACTORS *****



  •          Non-protein molecules that are necessary for enzyme action. Tow main groups

  •          COENZYMES - may be metal ions such as Mn2+ or Zn2+ or or complex organic molecules such as NAD+, NADP+, FAD and Flavine mononucleotide (FMN) - they are non-covalently bound to the enzyme

  •          PROSTHETIC GROUPS - are covalently bound to the enzyme at its active site and include metal ions and organic molecules such as biotin