10th Class Chemistry Chapter 13 Test13. Biochemistry

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

1. Vitamin C supports:
   1. Digestion
   2. Collagen synthesis and immunity
   3. Red blood cells
   4. Hormone regulation
2. Which vitamin is essential for blood clotting?
   1. Vitamin A
   2. Vitamin C
   3. Vitamin D
   4. Vitamin E
3. Gene therapy typically targets:
   1. All body cells
   2. A single faulty cell
   3. Lipids
   4. Enzymes only
4. Vitamin E acts as:
   1. Antioxidant
   2. Blood clotting agent
   3. Bone builder
   4. Enzyme
5. Fats and oils are:
   1. Proteins
   2. Simple lipids
   3. Carbohydrates
   4. Hormones
6. Carbohydrates are made of:
   1. Amino acids
   2. Carbon, hydrogen, oxygen
   3. Nitrogen and sulfur
   4. Fatty acids
7. Which molecule provides instructions to make proteins?
   1. RNA
   2. DNA
   3. Lipids
   4. Carbohydrates
8. Which groups are present in an amino acid?
   1. Hydroxyl and phosphate group
   2. Amino group and carboxylic group
   3. Carbonyl and aldehyde group
   4. Ketone and hydroxyl group
9. Which vitamin helps the body absorb calcium and is fat - soluble?
   1. Vitamin B12
   2. Vitamin C
   3. Vitamin D
   4. Vitamin E
10. Examples of lipids include:
    1. Cholesterol, fats, oils
    2. DNA and RNA
    3. Enzymes and hormones only
    4. Hemoglobin