Biologia

Solo disponible en BuenasTareas
  • Páginas : 4 (916 palabras )
  • Descarga(s) : 0
  • Publicado : 12 de mayo de 2011
Leer documento completo
Vista previa del texto
[pic]

Las cuatro bases nitrogenadas en el ADN: adenina, guanina, citosina y timina

Lista de cetosas.Pentosas:

• D-ribosa D-arabinosa D-xilosa D-lixosa
CHO CHOCHO CHO
| | | |
H-C-O-H H-O-C-H H-C-O-H H-O-C-H
| | | |
H-C-O-H H-C-O-H H-O-C-HH-O-C-H
| | | |
H-C-O-H H-C-O-H H-C-O-H H-C-O-H
| | | |
CH2OH CH2OH CH2OH CH2OH
•Hexosas: alosa, altrosa, glucosa, manosa, gulosa, idosa, galactosa, talosa.
D-alosa D-altrosa D-glucosa D-gulosa

CHO CHO CHO CHO
| | ||
H-C-O-H H-O-C-H H-C-O-H H-C-O-H
| | | |
H-C-O-H H-C-O-H H-O-C-H H-C-O-H
| | | |
H-C-O-H H-C-O-HH-C-O-H H-O-C-H
| | | |
H-C-O-H H-C-O-H H-C-O-H H-C-O-H
| | | |
CH2OH CH2OH CH2OH CH2OHD-manosa D-idosa D-galactosa D-talosa

CHO CHO CHO CHO
| | | |
H-O-C-H H-O-C-H H-C-O-H H-O-C-H
| | ||
H-O-C-H H-C-O-H H-O-C-H H-O-C-H
| | | |
H-C-O-H H-O-C-H H-O-C-H H-O-C-H
| | | |
H-C-O-H H-C-O-HH-C-O-H H-C-O-H
| | | |
CH2OH CH2OH CH2OH CH2OH
Triosa:
D-gliceraldehído L-gliceraldehído Dihidroxicetona

CHOCHO CH2OH
| | |
H-C-O-H H-O-C-H C=O
| |...
tracking img