No cap, this Biology test is basically a “How to Be a Human 101” vibe check. Whether you’re trying to figure out how your brain lag works or why your gym gains need calcium, these questions have the receipts.
11th Class Biology (Intermediate Part-I)
Most of the biochemistry and cell-related questions are from the first half of the Pre-Medical track.
| Question Nos. | Chapter Name & Number | Key Topics Covered |
| Q12, Q13, Q14, Q15, Q42, Q63, Q79 | Ch 2: Biological Molecules | Polysaccharides (Chitin), Lipids, Proteins (Peptide bonds, Collagen), Glycoproteins. |
| Q3, Q25, Q29 | Ch 4: The Cell | Golgi apparatus (Cisternae), Cartilage cells, Nucleic acids. |
| Q38, Q48 | Ch 3: Enzymes | Non-competitive inhibitors (Allosteric site), Transferase enzymes. |
| Q40, Q41 | Ch 11: Bioenergetics | Cellular respiration, Krebs cycle (NADH production). |
| Q61, Q65 | Ch 12: Nutrition / Ch 13: Gaseous Exchange | Appendix (Caecum), Pharynx functions. |
12th Class Biology (Intermediate Part-II)
The majority of the physiology, genetics, and biotechnology questions come from the 2nd-year book.
| Question Nos. | Chapter Name & Number | Key Topics Covered |
| Q23, Q44, Q46, Q81 | Ch 18: Reproduction | Menstrual cycle phases, Urogenital organs, Leydig cells. |
| Q26, Q31, Q45 | Ch 16: Support and Movement | Sarcoplasmic reticulum, Calcium ions, Arthritis types. |
| Q1, Q24, Q30 | Ch 20: Chromosomes and DNA | Translation, mRNA vaccines, Chemical composition of Chromosomes. |
| Q28, Q77 | Ch 21: Cell Cycle / Ch 22: Variation and Genetics | Crossing over (Meiosis), Dihybrid cross ratios (9:3:3:1). |
| Q11, Q27, Q43, Q70, Q80 | Ch 17: Coordination and Control | Neuron impulse, Reflex actions, Brain structure (Cerebellum/Cortex). |
| Q60, Q66, Q68 | Ch 15: Homeostasis | Glomerular filtration, Kidney failure, ADH/Osmoregulation. |
| Q22, Q64 | Ch 23: Biotechnology | Insulin production, Monoclonal antibodies. |
| Q78 | Ch 24: Evolution | Darwin’s Theory (Natural Selection). |
9th & 10th Class Biology (Matric)
While these are MDCAT-level (Intermediate) questions, many find their “foundation” in the 9th and 10th books:
- 9th Class Ch 3 & 4: Basic cell structure and Biodiversity.
- 10th Class Ch 14 & 15: Basics of Reproduction and Inheritance (where you first learn about Mendel and basic anatomy).
Summary of Distribution
- 12th Biology (STBB): ~60% of the test (Focus on Physiology & Genetics).
- 11th Biology (STBB): ~40% of the test (Focus on Molecules & Cell biology).
Q1. Which process uses mRNA to make protein at ribosomes?
A. Replication B. Transcription C. Translation D. Cell fractionation
Right Answer : C
Q2. Which of the following is the sexually transmitted disease?
A. Syphilis B. Lung Cancer C. Tuberculosis D. Autoimmune disorders
Right Answer : A
Q3. The Golgi apparatus is structurally made of a series of flattened membrane bounded sacs:
A. Grana B. Cristae C. Cisternae D. Vesicles
Right Answer : C
Q4. Which type of change is a nerve impulse?
A. Electrical and mechanical change B. Chemical and mechanical change C. Electrical and chemical change D. Chemical change only]
Q11. Which of the following best describes the direction of impulse traveling in a typical neuron?
A. Axon …… dendrite …… cell body B. Dendrite ….. cell body …… axon C. Synapse ….. axon …… dendrite D. Cell body ….. dendrite …… axon
Right Answer : B
Q12. Homopolysaccharide that is found in the cell wall of fungi and in the exoskeleton of arthropods is:
A. Cellulose B. Glycogen C. Starch D. Chitin
Right Answer : D
Q13. The most abundant lipids in living things are:
A. Terpenes B. Waxes C. Steroids D. Acylglycerols
Right Answer : D
Q14. Name the type of bond that join amino acids to form a polypeptide chain:
A. Hydrogen bond B. Ionic bond C. Glycosidic bond D. Peptide bond
Right Answer : D
Q15. Which of the following is not a globular protein?
A. Enzyme B. Hormone C. Channel protein D. Collagen
Right Answer : D
Q22. Which product is produced by genetically modified bacteria for patients with Diabetes mellitus? A. Insulin B. Erythropoietin C. Growth hormone D. Vaccine
Right Answer : A
Q23. Which changes occur in the endometrium during the proliferate phase of the menstrual cycle? A. It begins to shed B. It regenerates and thickens C. It becomes secretory D. No change occurs Right Answer : B
Q24. Role of mRNA in COVID-19 vaccines like Pfizer and Moderna is to:
A. Helps the immune system recognize the virus B. Instructs cells to produce the viral spike protein C. Triggers immediate antibody release from memory cells D. Delivers enzymes that destroy the virus
Right Answer : B
Q25. Living cells of cartilage are called as:
A. Osteocytes B. Thrombocytes C. Chondrocytes D. Osteoblasts
Right Answer : C
Q26. The regulator of muscle contraction, which is released from sarcoplasmic reticulum is:
A. Tropomyosin B. Troponin C. Calcium ions D. ATP
Right Answer : C
Q27. Automatic and rapid actions that do not involve the conscious part of brain is:
A. Reflex actions B. Conditioned reflexes C. Taxes D. Synapses
Right Answer : A
Q28. Crossing over involves exchange of genetic material between:
A. Sister chromatids of same chromosome B. Non-sister chromatids of homologous chromosomes C. Chromatids of non-homologous chromosomes D. Sister chromatids of homologous chromosomes
Right Answer : B
Q29. Name the biomolecule essential for information storage and transmission within cells.
A. Carbohydrates B. Lipids C. Nucleic acids D. Proteins
Right Answer : C
Q30. What is the chemical composition of chromosomes?
A. RNA and lipids B. DNA and proteins C. Carbohydrates and nucleic acids D. Proteins and carbohydrates Right Answer : B
Q31. Which of the following surrounds myofibril in skeletal muscle that stores and distributes calcium ions during muscle functioning?
A. Sarcoplasma B. Sarcoplasmic reticulum C. Transverse tubules D. Sarcoplasm
Right Answer : B
Q32. Shivering thermogenesis involves:
A. Voluntary muscle contraction B. Involuntary muscle contraction
Q38. Which of the following is a characteristic of a non-competitive enzyme inhibitor?
A. Binds to the enzyme active site B. Can be overcome by increasing substrate concentration C. Increases the speed of the reaction D. Point of action is allosteric site
Right Answer : D
Q39. Which of the following event prevent backflow of blood from ventricles to atria during ventricular systole?
A. Contraction of the atrial wall muscles B. Closure of tricuspid and bicuspid valves C. Opening of semilunar valve D. Opening of tricuspid and bicuspid valves
Right Answer : B
Q40. In the following process the cells release energy from oxidation of food molecules?
A. Cellular respiration B. Photosynthesis C. DNA replication D. Protein synthesis
Right Answer : A
Q41. How many NADH are produced, when one Acetyl co-A is oxidized during Krebs’s cycle?
A. 1 B. 2 C. 3 D. 6
Right Answer : C
Q42. Which of the following best describes glycoproteins?
A. Proteins linked with carbohydrates B. Proteins linked with DNA C. Proteins linked with lipids D. Proteins linked with minerals
Right Answer : A
Q43. The function which is common between Cerebellum and Hippocampus is:
A. Equilibrium B. Memory formation C. Body positioning D. Sexual arousal
Right Answer : B
Q44. In males, which of the following is considered a urogenital organ?
A. Urethra B. Ureter C. Urinary bladder D. Vas deferens
Right Answer : D
Q45. The most common type of arthritis is:
A. Gout B. Rheumatoid arthritis C. Osteoarthritis D. Spondylitis
Right Answer : C
Q46. The other name for Interstitial cells in male testes is:
A. Leydig cell B. Spermatogonia cell C. Sertoli cell D. Spermatocyte
Right Answer : A
Q47. Binding of hemoglobin with oxygen is catalyzed by the enzyme:
A. Carbonic anhydrase B. Carboxylase C. Oxygenase D. Dehydrogenase
Right Answer : A
Q48. Transfer of phosphate from one compound to the other compound requires an enzyme called:
A. Oxidoreductase B. Transferase C. Hydrolase D. Ligase
Right Answer : B
Q60. Which of the following substances pass through the glomerulus into Bowman’s capsule?
A. Glucose B. Red blood cells C. Platelets D. Albumin
Right Answer : A
Q61. The appendix is attached to which part of large intestine?
A. Rectum B. Caecum C. Colon D. Ileum
Right Answer : B
Q62. Which structural characteristic is most accurate for arteries?
A. Thin walls with valves B. Thick and muscular walls C. Highly permeable walls D. Large lumen lacking muscle
Right Answer : B
Q63. A food sample contains long chains of amino acids bounded together. This indicates the presence of:
A. Carbohydrates B. Lipids C. Proteins D. Nucleic acids
Right Answer : C
Q64. Monoclonal antibodies are useful in cancer diagnosis by:
A. Replacing damaged tissue B. Changing the genetic code of cancer cells C. Killing healthy cells to reduce tumor spread D. Detecting specific tumor markers in samples
Right Answer : D
Q65. The main function of the pharynx in respiratory system:
A. Serves as passage for both food and air B. Produces mucus C. Produces voice D. Filters air
Right Answer : A
Q66. The main cause of acute kidney failure is:
A. Less sweating B. Hypothermia C. Liver failure D. Drinking of excess water
Right Answer : C
Q67. During diastole, the heart chambers:
A. Relax and fill with blood B. Contract strongly C. Eject blood into arteries D. Remain closed
Right Answer : A
Q68. Kidneys perform their osmoregulatory role under the effect of Antidiuretic Hormone, which type of urine is produced in this situation?
A. Hypotonic urine with decreased volume B. Hypotonic urine with increased volume C. Hypertonic urine with decreased volume D. Hypertonic urine with increased volume
Right Answer : C
Q69. A person has swollen lymph nodes after throat infection. What does this indicate?
A. Failure of circulatory system B. Extra glucose storage C. Active immune response D. Blockage of digestive track
Right Answer : C
Q70. Which of the following is correct about the structure of brain?
A. Cerebral cortex is outer part consists of grey matter B. Cerebral medulla is inner part consists of grey matter C. Cerebral cortex is inner part consists of white matter D. Cerebral medulla is outer part consists of white matter
Right Answer : A
Q77. If “RRYY” is crossed with “rryy”, what will be the ratio of “RRYY” to “rryy” in F2 generation?
A. 9 : 3 : 3 : 1 B. 3 : 1 C. 1 : 3 D. 1 : 1
Right Answer : A
Q78. Name the idea of Darwin that best explains the ability of populations to reproduce those individuals who possess beneficial traits.
A. Gene flow B. Genetic drift C. Artificial selection D. Natural selection
Right Answer : D
Q79. At least how many saccharide units must be present in polysaccharide?
A. 1 B. 2 C. 10 D. 11
Right Answer : C
Q80. A doctor taps below the knee and the leg kicks forward. What does this show?
A. A conditional response B. Voluntary muscle contractions C. An involuntary reflex to external stimuli D. A delayed response due to brain processing
Right Answer : C
Q81. If fertilization does not occur, which part of uterus degenerate?
A. Myometrium B. Endometrium C. Perimetrium
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