CBSE-CLASS-XII SERIES Chemistry
Biochemistry
2 previous year questions.
Volume: 2 Ques
Yield: Medium
High-Yield Trend
2
2025 Chapter Questions 2 MCQs
01
PYQ 2025
easy
chemistry ID: cbse-cla
What is meant by essential amino acids? Why are amino acids amphoteric in nature?
02
PYQ 2025
easy
chemistry ID: cbse-cla
Ribose and 2-deoxyribose have an important role in biology. Among the most important derivatives are those with phosphate groups attached at the 5 position. Mono-, di- and tri-phosphate forms are important, as well as 3-5 cyclic monophosphates. Purines and pyrimidines form an important class of compounds with ribose and deoxyribose. When these purine and pyrimidine derivatives are coupled to a ribose sugar, they are called nucleosides.