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Punjab (PTB) · Chapter test · Free

10th Class Chemistry Chapter 12 TestBIOCHEMISTRY

30 marks · 40 minutes · 21 questions. Covers: CHAP 25: BIOCHEMISTRY.

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10th Class Chemistry Chapter 12 Test

10th Class · Chemistry · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

  1. What serves as the basic building blocks for most lipids?

    1. Amino acids

    2. Glucose molecules

    3. Fatty acids

    4. Glycerol

  2. Which fatty acid do we get from olive oil?

    1. Lauric acid

    2. Palmitic acid

    3. Oleic acid

    4. Stearic acid

  3. Which of the following is a primary source of cellulose?

    1. Potatoes

    2. Rice

    3. Wheat

    4. Wood and cotton

  4. A healthy and balanced diet helps prevent which of the following diseases?

    1. Heart disease

    2. Diabetes

    3. Osteoporosis

    4. All

  5. What does the abbreviation RNA stand for?

    1. Ribonucleic acid

    2. Ribonitric acid

    3. Radionucleic acid

    4. Reoxyribonucleic acid

  6. In which of the following is glucose present in fruits?

    1. Grapes

    2. Apple

    3. Orange

    4. Apricot

  7. Chemically, soap is defined as:

    1. Sodium salts of long chain fatty acids

    2. Pure glycerol

    3. A type of fibrous protein

    4. A mixture of vitamins

  8. According to the Basics of Healthy Eating, which of the following should be reduced in the diet?

    1. Lean proteins

    2. Water intake

    3. Sodium and sugar

    4. Whole grains

  9. Gene therapy may be helpful in the future to fight a wide range of diseases including:

    1. Diabetes and AIDs

    2. Cancer

    3. Haemophilia

    4. All of these

  10. Which functional groups react to produce a peptide linkage in proteins?

    1. Carboxyl group and hydroxyl group

    2. Carboxyl group and amino group

    3. Hydroxyl group and amino group

    4. Ester group and amino group

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

  1. What is HCG and when is it produced in the body?

  2. Which commercial products are obtained from oils and fats?

  3. How do vitamins differ from carbohydrates, lipids, and proteins regarding energy provision?

  4. Name the type of animal fats that are made from milk.

  5. What are the basic differences between DNA and RNA?

  6. List four structural components of animals that are made of proteins.

  7. How much proteins does an adult consume?

  8. What is triglyceride?

Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)

  1. What are DNA and RNA? Describe the role played by them in our body.

  2. Construct peptide linkage and explain the structure of a polypeptide.

  3. What is biochemistry? Describe three main classes of food.