9th Class Biology Chapter Wise Test Chapter 6

9th Class Biology Chapter Wise Test Chapter 6 covers the complete chapter of Biology, BIOMOLECULES, in a 36-mark bilingual paper with every question given in both English and Urdu. It follows the board pattern: ten MCQs with a bubble sheet, ten short questions of which any eight are attempted, and two detailed questions. An answer key for the MCQs is included at the end.

What Chapter 6 Covers

This test paper is set on the whole of Chapter 6, Biomolecules, rather than a single exercise, so it is a fair check of whether the chapter is actually finished. The questions are drawn from across these topics:

• Why water is essential to life, including its solvent properties and high specific heat capacity.
• Carbohydrates — monosaccharides, disaccharides and polysaccharides, with glucose, sucrose, starch, glycogen and cellulose as the standard examples.
• Proteins — amino acids, the peptide bond, and the roles proteins play as enzymes, hormones and structural material.
• Lipids — fats and oils, their structure from glycerol and fatty acids, and why they store more energy than carbohydrates.
• Nucleic acids — the structure and function of DNA and RNA, and the nucleotide as their building block.
• The building block of each class of biomolecule, which is the single most tested fact in this chapter.

Revise These Before You Attempt It

Most marks in this chapter are lost on the same handful of points. Read through these once before you start:

• Learn the monomer of each biomolecule: monosaccharides for carbohydrates, amino acids for proteins, glycerol and fatty acids for lipids, and nucleotides for nucleic acids.
• Glucose is a monosaccharide, sucrose a disaccharide, and starch, glycogen and cellulose are all polysaccharides of glucose.
• The bond joining two amino acids is a peptide bond; the bond joining two monosaccharides is a glycosidic bond.
• Lipids give roughly twice the energy per gram that carbohydrates do.
• DNA is double stranded and contains thymine; RNA is single stranded and contains uracil instead.

How This Test Paper Is Built

The paper follows the board pattern for a chapter test rather than inventing its own, so sitting it is useful practice for the real thing:

• 36 marks in total, enough for a full class test.
• Ten multiple-choice questions with a bubble sheet to fill, exactly as in the board objective paper.
• Ten short questions, of which you attempt any eight.
• Two detailed questions carrying the longer written answers.
• Bilingual throughout — every question is printed in English and in Urdu, so both mediums use the same file.
• An MCQ answer key is included at the end of the paper.

Mistakes Students Make in This Chapter

When you mark your paper, check whether any of your lost marks came from these:

• Calling sucrose a monosaccharide.
• Naming the bond between amino acids a glycosidic bond rather than a peptide bond.
• Putting thymine in RNA or uracil in DNA.
• Saying carbohydrates store more energy per gram than lipids.

After You Finish

Mark the objective section against the key at the end of the paper first, then mark the written sections against your textbook. Write down the topic behind every question you got wrong rather than just the question number, because it is the topic you need to revise, not the single question. If you want the same chapter marked for you automatically, take the Chapter 6 online test linked below: it shows the correct option and an explanation under every question the moment you submit, which is the quickest way to find out whether the gap has actually closed.

Frequently Asked Questions

What are the building blocks of proteins?

Amino acids. They join together through peptide bonds to form long chains called polypeptides, which fold into the final protein shape.

What is the difference between DNA and RNA?

DNA is double stranded, contains deoxyribose sugar and the base thymine, and stores genetic information. RNA is single stranded, contains ribose sugar and the base uracil, and is mainly involved in making proteins.

Is this test paper free?

Yes. The PDF is free to download and print, there is no sign-up, and the MCQ answer key is included in the file.

Is it available in Urdu medium?

Yes. Every question in the paper is printed in English and in Urdu, so Urdu medium and English medium students download exactly the same file.

Related Class 9 Biology Resources

Take the Chapter 6 online test for 25 self-marking MCQs on Biomolecules with an explanation for every answer. Carry on with Chapter 5 test paper (Tissues, Organs and Organ Systems) and Chapter 7 test paper (Enzymes). When several chapters feel solid, sit a full paper from the 25 Class 9 Biology guess papers, each a complete 60-mark bilingual paper. Everything for the subject is collected on the Class 9 Biology page, and you can browse all Class 9 Biology test papers or every Class 9 Biology online test.