Tiêu đề 12th-class-guess-papers-2024-bio-short.pdf ✅

Guess Paper Annual 2025 BIOLOGY 12 (SUBJECTIVE PART) SECTION-I SHORT QUESTIONS (SQs) 1. What is lithotripsy? 2. What are pyrogens? 3. Differentiate between hypotonic and hypertonic environment. 4. What are osmoconformers and osmoregulators? 5. What is extracorporal shock wave lithotripsy? 6. What are flame cells? Why they are called so? 7. Write structural formula of urea and uric acid. 8. Define homeostasis. Give its importance. 9. Differentiate between poikilotherms and homeotherms. 10. Differentiate between ectotherms and endotherms. 11. Differentiate between hemodialysis and peritoneal dialysis. 12. What are xerophytes? Give two adaptations of xerophytes. 13. Draw and label urea cycle. 14. Illustrate the function of Malpighian tubules. 15. What is sciatica and its causes? 16. What is foreman triosseum? How it is formed? 17. What is the role of vascular cambium? 18. What is axial skeleton? www.kazmibooks.com 19. What are synovial joints? 20. Differentiate between active and passive flight. 21. How is rickets produced? (LB-2012) 22. What are the causes of herniation of discs? 23. What is the difference between tetanus and muscle tetany? 24. What is the difference between exoskeleton and endoskeleton? 25. What is the hematoma formation? (LB-2016) 26. Differentiate between effective and recovery stroke. 27. What are plantigrade and unguligrade? 28. Characterize collenchyma cells. 29. Compare phototropism and geotropism. 30. Compare hinge joint with ball and socket joint. 31. Define haptonastic movement. 32. Define antagonistic movement of muscles. 33. What is the process of ecdysis (moulting). 34. Differentiate between sclerenchyma and collenchyma cells. 35. Differentiate between fibers and sclereids. 36. Differentiate between compact bone and spongy bone. Give only two differences.
Guess Paper Annual 2025 BIOLOGY 12 37. Distinguish between axial skeleton and appendicular skeleton. 38. Differentiate between Osteoporosis and Osteomalcia. 39. Differentiate between brachialis and brachioradialus. 40. Differentiate between bone and cartilage. 41. Differentiate between ligament and tendon. 42. What is the role of placenta in human? 43. What is seed dormancy? Give its importance. 44. What is the role of interstitial cells in sperm production? 45. What is the structure and function of corpus luteum? 46. Write down at least two important measures to prevent AIDS. 47. What are Oviparous, Viviparous and Ovoviviparous animals? 48. Classify the plants according to photoperiodic requirement for flowering. 49. Define photoperiodism and write its effects in plants. 50. Differentiate between haploid parthenogenesis and diploid parthenogenesis. 51. Differentiate between menupause and ovulation. 52. Differentiate between internal and external fertilization. 53. Differentiate between spermatogenesis and oogenesis. 54. Differentiate between identical twins and fraternal twins. 55. How lactation differ from gestation? 56. How test tube babies are produced? 57. What is the composition of air of terrestrial ecosystem? 58. What is the effect of human impact on Tundra ecosystem? 59. What is the effect of human impact on Desert ecosystem? 60. What is the range of rainfall and temperature in Temperate Deciduous Forest 61. What are the four major requirements for life? 62. What is meant by layering in a grassland ecosystem? 63. Differentiate between climate and weather. 64. Differentiate between Alpine and Boreal forests. 65. Differentiate between Zooplankton and Phytoplankton. 66. Differentiate between Prairies and Savanna. 67. Differentiate among littoral, limnetic and profundal zone. 68. Enlist two adaptations in plants and two in animals for a terrestrial ecosystem. 69. Give the name of some major ecosystems on land in Pakistan. 70. Name six major terrestrial biomes. 71. Mention the characteristics of plant life in desert ecosystem. 72. What is acid rain? www.kazmibooks.com 73. What is Eutrophication? 74. Write names of various types of pollution. 75. What are the main sources of water pollution?
Guess Paper Annual 2025 BIOLOGY 12 SECTION-II SHORT QUESTIONS (SQs) 1. What is innate behavior? 2. What is the role of hypothalamus? 3. What is habituation? Give an example 4. What is the role of thyroxine? 5. What is the role of vasopressin/ADH and oxytocin hormone? 6. What is the function of estrogen and progesterone? 7. What are axons and dendrites? 8. What is reflex arc? 9. What are the symptoms of Alzheimer’s disease? 10. What is the difference between CNS and PNS? 11. What is the function of parathyroid gland or parathormone? 12. What is Parkinson’s disease? 13. What are gastrin and secretin? 14. Write function of photoreceptors and nociceptors 15. Compare Circadian and Circannual rhythms 16. Define the term hormone, give one example? 17. Define feedback mechanism 18. Differentiate between biorhythms and diurnal rhythms 19. Differentiate between etiolation and chlorosis 20. Differentiate between sympathetic and parasympathetic nervous system 21. Differentiate between active and resting membrane potential 22. Give two commercial applications of Gibberellins 23. Give effects of nicotine on blood vascular system and digestive system in man 24. Explain the functions of two hormones secreted by Islets of Langerhans 25. What is Bombay phenotype? 26. What is SRY gene? How it is transferred? 27. What are the genes and alleles? 28. What do you know about hypophosphatemic rickets? 29. What are pseudoautosomal genes? 30. What is haemophilia and its various types? 31. What is the role of blood groups in establishing parentage? 32. What is meant by universal blood donor and universal recipient? 33. What is crossing over? What is its importance? 34. What is meant by erythroblastosis foetalis? 35. What is meant by linkage, linked genes and linkage groups? 36. What is test cross? Why did Mendel suggest this cross? 37. What is test cross? Give its uses 38. What is the difference between heterogametic and homogametic individuals? 39. What are compound sex chromosomes and their example? 40. Compare monohybrids with dihybrids 41. Define laws of Mendel 42. Differentiate between phenotype and genotype 43. Differentiate between incomplete dominance and co-dominance 44. Differentiate between gene and genome 45. Differentiate between homozygous and hemizygous www.kazmibooks.com
Guess Paper Annual 2025 BIOLOGY 12 46. Differentiate between homozygous and heterozygous 47. Differentiate between dominant trait and recessive trait 48. Differentiate between qualitative and quantitative traits 49. Differentiate between IDDM and NIDDM 50. Differentiate between multifactorial and polygenic traits 51. Differentiate between probability and product rule 52. Differentiate between protanopia, deuteranopia and tritanopia 53. Differentiate between sex-limited and sex-influenced traits 54. Distinguish between polygenes and pleiotropy 55. Give the concept of fixed allele 56. How sex determination occurs in yeast? 57. What is a probe? 58. What is gene pharming? 59. What is aspartame? 60. What is gene therapy? 61. What is meant by cloning? 62. What are Palindromic sequences? 63. What are the various methods of gene or DNA sequencing? 64. What is the biodegradable plastic and its origin? 65. What is the role of suicide gene in transgenic bacteria? 66. What is the advantage of genetic engineering of C4 plants? 67. What is Ex-vivo gene therapy? 68. What is a genome and genomic library? 69. Define biotechnology 70. Define Molecular scissors 71. What is the role of molecular carrier-the vector? 72. Explain the importance of gene sequencing 73. What is ammonification? 74. What is a Mycorrhiza? 75. What is grazing? How grazing affect the texture of soil? 76. What is biome? 77. Briefly write about secondary succession 78. Define succession and name its types 79. Define biogeochemical cycles 80. Define and describe biotic components of an ecosystem 81. Define food chain and food web 82. Differentiate between population and community 83. Differentiate between habitat and niche 84. Differentiate between autecology and synecology 85. Differentiate between consumers and decomposers 86. Differentiate between primary and secondary succession SECTION-III SHORT QUESTIONS (SQs) 1. What do you mean by open growth? 2. What is neurocoel? 3. What is present goal of gerontology? 4. What is gastrocoel and from which germ layer it is originated? 5. What is Henson’s node? Give its role. 6. What is meant by discoidal cleavage? 7. What do you mean by lateral meristem. www.kazmibooks.com