Q9 of 27 Page 1

Carefully examine structures A and B of pentose sugar given below. Which one is more reactive? Give reasons.


Structure A is Ribose sugar. Structure B is Deoxyribose sugar.

In structure A, i.e., ribose sugar, there is a hydroxyl (-OH) group on the second carbon. Whereas in structure B, i.e., deoxyribose sugar, instead of the hydroxyl group, there is a hydrogen atom on the second carbon.


Chemically, hydroxyl group is more reactive than a hydrogen atom. Thereby, making the compound easily degradable and catalytic.


Therefore, structure A is said to be more reactive than structure B, i.e., ribose sugar is more reactive than deoxyribose sugar.


More from this chapter

All 27 →
7

Name any two copper related IUD’s. Explain how it acts as a contraceptive?

 8

Why is it not possible to study the inheritance pattern of traits in human beings, the same way as it is done in pea plant? Name the alternate method employed for such an analysis of human traits.

 10

Name the technology and the procedure involved which can help a scientist recover virus free sugarcane plants from diseased canes for his crop breeding experiments.

 11

Explain the events that occur in the host cell on introduction of nematode resistant gene into the tobacco plant by using Agrobacterium vectors.