Biomolecules: Class 12 Chemistry (CBSE) important questions and practice
Biomolecules is chapter 10 of 10 in CBSE Class 12 Chemistry. Below are the topics the paper draws from, the question types that come up again and again, and a free practice test on this chapter alone.
Topics in this chapter
- Carbohydrates: classification, glucose structure and reactions, fructose, sucrose, maltose, lactose, starch, cellulose, glycogen
- Proteins: amino acids, zwitterion, peptide bond, primary to quaternary structure, denaturation
- Enzymes: mechanism and specificity
- Vitamins: classification (fat-soluble, water-soluble), sources and deficiency diseases
- Nucleic acids: DNA and RNA structure, nucleoside versus nucleotide, biological functions
- Hormones (brief)
What examiners usually ask
- What are reducing and non-reducing sugars? Why is sucrose a non-reducing sugar?
- Differentiate between the primary and secondary structure of proteins; what is denaturation?
- Write the differences between DNA and RNA and define a nucleotide
Exam tip
Prepare the vitamin-deficiency table (A night blindness, B1 beri beri, C scurvy, D rickets, K bleeding) and the glucose open-chain reactions that establish its structure; the DNA-RNA comparison and the sucrose non-reducing reason are asked almost every year.
Biomolecules on other boards and exams
Frequently asked questions
What are the important questions from Biomolecules for CBSE Class 12?
The question types listed above repeat most often in CBSE Class 12 Chemistry papers for this chapter. Practise them with the chapter test and then attempt them inside a full previous-year paper under time.
Is Biomolecules in the CBSE Class 12 Chemistry syllabus?
Yes. Biomolecules is part of the current CBSE Class 12 Chemistry syllabus, as listed on this site from the prescribed textbook.
Can I practise Biomolecules MCQs in Hindi?
Yes. The chapter test and explanations are available in Hindi and English, with an AI doubt solver for any question.