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  1. >>Class 12
  2. >>Chemistry
  3. >>Biomolecules
Tricky questions
3 min read

Biomolecules

- Some questions are often misinterpreted by students. Here are a few.
1
Stereochemistry of any molecule can be quite confusing, especially with so many different terms being used, like enantiomers, epimers, isomers and so on! Let's see if you can crack one such question.
Which of the following represents epimer of D-glucose?
A
B
C
D
2
Amino acids can be acidic, basic or neutral depending on the relative number of their amine and carboxylic groups. You need to know which amino acids are acidic and which are basic, as it is easy to get confused between the two. The fact that amino acids behave like zwitter ions add to the confusion. So, get your concepts right!
Nature of aqueous solutions of two different amino acids X and Y are acidic and basic, respectively. X and Y can be:

A
Alanine and valine
B
Aspartic acid and Asparagine
C
Glutamine and Glutamic acid
D
Aspartic acid and Lysine
3
It's possible to go wrong when answering questions related to structure of nucleic acids. There are many different components of RNA and DNA that you should be thorough with.
Guanine is an example of:
A
Nucleotide
B
Nucleoside
C
Purine base
D
Pyrimidine base