Question
Distinguish between:
- Reducing sugars and non-reducing sugar.
- Purine and pyrimidine.
|
S. No
|
Reducing Sugars
|
Non-Reducing Sugars
|
|
(a)
|
The sugars have a free aldehyde or ketone group. The sugars can reduce cupric ions of Benedict's or Fehling's solution to cuprous ions.
|
A free aldehyde or ketone group is absent. They do not reduce cupric ions of Benedict's or Fehling's solution to cuprous ions.
|
|
(b)
|
e.g., ribose, glucose, erythose.
|
e.g., sucrose, maltose, lactose
|
|
S. No
|
Purine
|
Pyrimidine
|
|
(a)
|
Purines are large sized nitrogen containing biomolecules.
|
Pyrimidines are smaller sized nitrogen containing biomolecules.
|
|
(b)
|
It is nine membered and has a double ring. A purine contains four nitrogen atoms at 1', 3', 7'
|
It is 6 membered and has a single ring. A pyrimidine has nitrogen atoms at two places -1’ and 3' and 9'.
|
|
(c)
|
e.g., adenine and guanine.
|
e.g., cytosine, thymine and uracil.
|
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.