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Free notes of Biomolecules short revision part 2

 Biomolecules part 2.


  1. DNA has bases like adenine , gunine , cytosine , thymine.                                                 
  2. RNA has bases like adenine, gunine , cytosine , urasil.                                                       
  3. Adenine have hydrogen bond with thymine and cytosine have hydrogen bond with gunine.                                                                      
  4. D- fructose , D - manose ,D- glucose , form a same osazone product .                                         
  5. Osazone product is form when the glucose etc . Are reacts with phenyl hydrazine .            
  6. Osazone reduce with Zn and acetic acid  then it forms the ketone as a product.              
  7. When glucose undergoes osazone process then it will be  converted into fructose. Then Futher hydrolysis gives the osone as a product .these process use to conver the aldoes sugar ( glucose) to ketones sugar ( fructose ).                                                                 
  8. When glucose reacts with alkali with hydrolysis gives the gives the cis enol and trans enol both. While cis enol is tautomerise to give fructose . And trans enol is tautomerise to give D- manose.                   
  9. Despite having aldehyde on glucose does not give 2-4 DNP test or Schiff base test .         
  10. Glucose pentacetate does not reacts with hydroxyl amine .                                                    
  11. Fructose is known as the fruit sugar.                
  12. Maltose is an reducing sugar.                              
  13. If a is a naturally occurring amino acid the the maximum number of tripeptides are cube of a or( a cube).                                             
  14. Proteins when treated with conc.HNO3 give yellow colour this is called as xanthaoprotic test .                                                                              
  15. D-ribose and 2-deoxy-D-ribose present in nucleic acid.

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