Biologia

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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
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H-C-O-H H-O-C-H H-C-O-H H-O-C-H
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H-C-O-H H-C-O-H H-O-C-HH-O-C-H
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H-C-O-H H-C-O-H H-C-O-H H-C-O-H
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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
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H-C-O-H H-O-C-H H-C-O-H H-C-O-H
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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
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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
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H-C-O-H H-O-C-H C=O
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