JKBOSE 11th Class 2026 Bi-Annual Private Exam Biology Guess Paper

JKBOSE 11th Class 2026 Bi-Annual Private Exam Biology Guess Paper

JKBOSE 11th Class Biology Guess Paper 2026 for the Bi-Annual Private Examination is provided in this article to help students prepare effectively for their upcoming exams. Here, you will find the most important and expected Biology questions selected from the latest syllabus, previous year trends, and high-weightage topics to boost your exam preparation and scoring potential.

BOTANY Important Questions:-

1. Define Binomial Nomenclature and state the universal rules for naming organisms.

2. Explain the role of Herbaria, Botanical Gardens, and Zoological Parks as taxonomical aids.

3. Differentiate between Species and Taxon.

4. List the hierarchical sequence of taxonomic categories (Kingdom to Species).

5. What does ICBN stand for?

6. Carolus Linnaeus devised a nomenclature system known as: (A) Monomial (B) Binomial (C) Trinomial (D) Polynomial

7. What are Viruses? What are Viroids?

8. Differentiate between Virus and Viroid.

9. What do you understand by Photoperiodism and Vernalisation? Describe their significance.

10. Draw schematic representation of the various steps of glycolysis. How is glycolysis different from citric acid cycle?

11. Enumerate the diagnostic characters, floral formula and floral diagram of family Liliaceae.

12. Define Flower. Describe parts of typical flower. Write the functions of the flower.

13. Give the diagrammatic representation of Hatch and Slack cycle.

14. Discuss in detail the different steps of Calvin Cycle with the help of schematic representation.

15. Give an account of distinguishing features of Family Solanaceae.

16. Briefly describe conditions necessary for growth.

17. What are the important events and end products of Light Reaction?

18. Describe Chemiosmotic Production of ATP.

19. State the criteria followed by R.H. Whittaker for his Five Kingdom Classification.

20. How is the Five Kingdom Classification advantageous over the Two Kingdom system?

21. Write the characteristic features of Kingdom Monera.

22. Write the characteristic features of Kingdom Protista.

23. Differentiate between Red, Green, and Brown Algae based on pigments, stored food, and cell wall composition.

24. Write two important features of Lichens.

25. Write any three distinguishable characters of Lichens.

26. Why are Bryophytes called the Amphibians of the Plant Kingdom?

27. Describe the salient features of Bryophytes.

28. Explain the economic importance of Bryophytes (e.g., Sphagnum).

29. Differentiate between Pteridophytes and Gymnosperms.

30. Define Heterospory and state its significance in the evolution of seed habit.

31. Enumerate the important characteristics of Gymnosperms.

32. Differentiate between Gymnosperms and Angiosperms.

33. Define and classify Plant Tissues (Meristematic and Permanent).

34. Explain the structure and function of Parenchyma, Collenchyma, and Sclerenchyma.

35. Select the statement which is not applicable to Sclerenchyma: (A) Consists of long narrow cells (B) The cells are living (C) The cell wall is lignified (D) Provides mechanical support

36. Write general characteristics of Roots.

37. Name three basic Tissue Systems in Flowering Plants.

38. Give two differences between Vascular Bundles of Monocot and Dicot stems.

39. Give two differences between Radial and Conjoint Vascular Bundles.

40. Draw a neat labelled diagram of Internal Structure of Dicot Stem.

41. Draw a neat labelled diagram of Internal Structure of Dicot Root (T.S.) and Monocot Root (T.S.).

42. Differentiate between Anatomy of Dicot and Monocot Stem.

43. Define Photosynthesis. State the role of accessory pigments.

44. Explain the Light Reaction (Cyclic and Non-cyclic Photophosphorylation).

45. Explain the factors affecting Photosynthesis.

46. Define Respiratory Quotient (RQ). What is the RQ of carbohydrates?

47. Compare RQ values for Carbohydrates, Proteins, and Lipids.

48. What is Osmosis? State its types.

49. Explain Kreb's Cycle (brief outline).

50. Compare Fermentation and Aerobic Respiration.

51. Explain the Electron Transport System.

52. What is Vascular Tissue system?

 ZOOLOGY Important Questions 

1. Write down the salient features of phylum Coelenterata & Arthropoda.

2. Differentiate between chordata and non-chordata.

3. Explain the digestive system & reproductive system of frog with well labelled diagram.

4. Explain the events occurring during the cardiac cycle.

5. What do you understand by oxygen-haemoglobin dissociation curve? What are the various factors affecting this curve?

6. Describe the mechanism of transport of O2 and CO2 in blood.

7. Explain the process/mechanism of muscle contraction with respect to sliding filament theory.

8. Describe the process of generation, conduction & transmission of nerve impulse across an axon.

9. Enlist the hormones of adrenal gland & pancreas along with their functions.

10. What are the stages of Cell cycle?

11. Differentiate between cell wall and cell membrane.

12. Write down the composition of Blood.

13. Give few distinguishing features of Phylum Porifera.

14. Write down three differences between Museum and Zoological Park.

15. Explain diagrammatically the behavior of chromosomes in Meiosis-I.

16. What is a Joint? List any two types of Synovial joint.

17. Enumerate the hormones secreted by Pituitary gland.

18. What are Enzymes? How are Lyases different from Ligases? Give one example for each.

19. Give the details of events which occur during interphase of a cell cycle.

20. Write a short note on oxygen dissociation curve.

21. What are primary and secondary metabolites?

22. Write short note on Dachigam National Park.

23. What are Plastids? Give their types.

24. Draw a well labelled diagram of female reproductive system of Frog. Describe Glomerular filtration in human Nephron.

25. Meiosis-I is often considered a complete cell division. What is the necessity of occurrence of Meiosis-II in cell cycle?

26. Give a brief account of the countercurrent mechanism.

27. What is meant by Double Circulation? Write its significance.

28. Explain the mechanism of breathing with labelled diagrams.

29. How does tubular secretion help in maintaining acid base balance in the body fluids?

30. Describe the various steps involved in Urine formation.

31. Describe the internal structure of the human heart and show how blood circulates in it.

32. Explain the structure of Internal ear.

🔬 COMMON SECTION (Botany + Zoology) (18 Questions)

1. Briefly discuss the phases of Mitosis and Meiosis.

2. Differentiate between mitosis and meiosis & write down their significance.

3. Describe the structure and functions of mitochondria.

4. Describe the structure and functions of chloroplast.

5. Describe the structure and functions of ribosomes.

6. Describe the structure of proteins / levels of protein structure.

7. What are enzymes? Define the nature of enzyme action & the factors affecting its action.

8. How saturated fatty acids are different from unsaturated fatty acids?

9. What is a cell? Give an account of the structure of Mitochondria.

10. What are Macromolecules? Describe the structure of Carbohydrates.

11. Draw a well labelled diagram of Human Kidney and with the help of a flow chart highlight path of urine drainage from collecting ducts to outside.

12. Define a Neuron. Give an account on mechanism of synaptic transmission.

13. Define a Neuron. Describe the process of generation and conduction of nerve impulse in man.

14. What are Skeletal Muscles? Give a detailed account on the mechanism of muscle contraction.

15. Differentiate between Chordates and Non-Chordates.

16. Write two salient features of Animal kingdom.

17. Write short note on Dachigam National Park.

18. What are Plastids? Give their types.

Best Of Luck Dear Students