Biology MCQ Quiz – CHEMASH
Welcome to this week’s Biology MCQ Quiz designed for Class 9, Class 11, Boards & NEET 2026 aspirants. Test your understanding of Cells, Biomolecules, Enzymes and Metabolism.
Revise before attempting: Cell: The Unit of Life | Biomolecules Simplified | Enzymes & Metabolism
Section A – Cell Biology
1. Powerhouse of the cell is:
a) Nucleus b) Ribosome c) Mitochondria d) Golgi Body
2. Genetic material is present in:
a) Lysosome b) Nucleus c) ER d) Vacuole
3. Ribosomes help in:
a) Respiration b) Digestion c) Protein synthesis d) Storage
4. Lysosomes contain:
a) DNA b) ATP c) Enzymes d) Chlorophyll
Section B – Biomolecules
5. Monomer of proteins:
a) Nucleotide b) Fatty acid c) Amino acid d) Glucose
6. DNA is made of:
a) Amino acids b) Nucleotides c) Fatty acids d) Sugars
7. Main energy source of cell:
a) Lipids b) Proteins c) Carbohydrates d) Vitamins
8. Lipids are:
a) Hydrophilic b) Hydrophobic c) Water soluble d) Polar only
Section C – Enzymes & Metabolism
9. Enzymes are:
a) Lipids b) Proteins c) Carbohydrates d) DNA
10. Breakdown reactions are called:
a) Anabolism b) Catabolism c) Synthesis d) Mutation
11. Substrate binds at:
a) Active site b) Matrix c) Cristae d) Cytoplasm
12. Enzymes lower:
a) Temperature b) Activation energy c) pH d) Pressure
Answers with Explanation
1. c) Mitochondria – Produces ATP.
2. b) Nucleus – Contains DNA.
3. c) Protein synthesis – Ribosomes make proteins.
4. c) Enzymes – Lysosomes contain digestive enzymes.
5. c) Amino acid – Proteins are made of amino acids.
6. b) Nucleotides – DNA is polymer of nucleotides.
7. c) Carbohydrates – Main energy source.
8. b) Hydrophobic – Lipids repel water.
9. b) Proteins – Most enzymes are proteins.
10. b) Catabolism – Releases energy.
11. a) Active site – Substrate fits here.
12. b) Activation energy – Speeds reaction.
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Official syllabus reference: NCERT Biology
