APPENDIX I 



R 



N N 



CHr/V Y ^ 



NH 



CHoOHCCHOH-ONH-CHjCHjCOOH 



I 

 CH3 



Pantothenic acid 



Riboflavin 



O NHj^^^ , 



,<r\ 



COOH 



N 



il 



HN NH 



HC— CH 

 H2C CH(CH2)4COOH 



Biotin 



CONH. 



p-Aminobenzoic 

 acid 



Nicotincrr.ide 



C-NH2 X 



H^ "C-CH2-N=CH 

 I II II 



V CHa^C-CH^CHpH 



Aneurin (Thiamine) 



Figure 1 . Some of the vitamins — substances essential to life. 



CH 



... ,. . HC^\-CONH2 

 Nicotinic 11 I 



Gcid amide |_|^ q 



d-Ribose 



HC 



I 

 HCOH 



I 

 HCOH 



I 



HC 



CH: 



I 

 HCOH 



HCOH 



I 

 O OH HC 



I I i 



•o — P — o~ P-O-CH2 



II II 



O o 



N=CH-N 



I II 



C=C— C— NHj 



{s| N Adenine 



I CH 

 HC 



Phosphoric acid 

 (2 mols.) 



d-Ribose 



Figure 2. Structual formula of co-enzyme I. ATP consists of the 

 right-hand side (adenine and J-ribose) combined with three mols 



of phosphoric acid. 



