Biomolecules — Important Questions
ICSE · Class 12 · Chemistry
104 important questions from Biomolecules for ICSE Class 12 Chemistry, with answers. Includes multiple choice and true false questions.
Interactive on Super Tutor
Studying Biomolecules? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
Free trial, no card needed.
Important Questions from Biomolecules
DNA contains which of the following sugar?
Show answer
Deoxyribose
DNA contains deoxyribose (2-deoxyribose) as the pentose sugar. RNA contains ribose.
The bond between amino acids in a protein is called:
Show answer
Peptide bond
Peptide bond (-CO-NH-) links amino acids. Glycosidic bonds link sugars; phosphodiester links nucleotides in DNA/RNA.
Starch turns which colour with iodine solution?
Show answer
Blue-black
Starch gives a characteristic blue-black colour with iodine. Glycogen gives red-brown. This is a diagnostic test for starch.
Which vitamin deficiency causes rickets in children?
Show answer
Vitamin D
Vitamin D (calciferol) deficiency causes rickets in children (soft and deformed bones) and osteomalacia in adults.
+100 more questions on Biomolecules (ICSE Class 12 Chemistry)
Practise AllFrequently Asked Questions
What are the important topics in Biomolecules for ICSE Class 12 Chemistry?
How many important questions are there in Biomolecules?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Biomolecules
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Formula Sheet
The chapter's formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect
Study Plan
Step-by-step plan for this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
For serious students
Get the full Biomolecules chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 12 Chemistry. Free to start, no card needed.