Home / Guess Paper / 11th Class Guess Paper / 11th Class Biology Guess Paper 2019

11th Class Biology Guess Paper 2019

11th class biology guess Paper 2019

Fsc 1st year guess paper 2019. 11th class biology guess 2019. Bio guess Fsc first year.

11th class biology guess



Short Questions 11th class biology Guess Paper

Q.NO# 2 (8/12)

CH # 2, 3, 8, 10, 11

  1. Define the transfer RNA and messenger RNA.
  2. Describe different types of RNA molecules. (Most imp.)
  3. Differentiate between saturated and unsaturated fatty acids.
  4. Draw peptide linkage between glycine and alanine (Most imp.)
  5. Draw structures of ribofuranose and glucopyranose.
  6. How fibrous proteins differ from globular proteins? (Most imp)
  7. How is peptide bond formed? Show peptide bond between amino acids. (Most imp.)
  8. What are conjugated molecules? Give examples.
  9. What do you know about waxes? Give their chemical composition. (Most imp.)
  10. What is an ester? Express it with equation.
  11. What is the function of mRNA? (Most imp)
  12. Why the heat capacity of water is very high Give its importance.
  13. Write general formula of amino acid (sketch it). Most Imp.)
  14. Define enzyme inhibitors. Give its two types. (Most imp.)
  15. Define feedback inhibition of enzymes with diagram. (Most imp.)
  16. Differentiate between activator and prosthetic group. (Most imp.)
  17. Differentiate between competitive and non-competitive inhibitors. (Most imp.)
  18. Differentiate between irreversible and reversible inhibitors. (Most imp.)
  19. Differentiate between prosthetic ground coenzyme. (Most imp.)
  20. Differentiate between the terms apoenzyme and holoenzyme. (Most imp.)
  21. How do irreversible inhibitor check the reaction rate of enzymes?
  22. How do slight and extreme changes in pH affect enzymes? (Most imp.)
  23. State the effect of ph on the activity of enzyme.
  24. What do you know about optimum pH of an enzyme? Give one example. (Most imp.)
  25. What is active site and What are its two regions? (Most imp.)
  26. What is cofactor Give its types. (Most imp.)
  27. What is induced model of enzyme action, who proposed it? (Most imp.)
  28. What is meant by optimum temperature? Give an example.
  29. Why enzyme are denatured at high temperature? (Most imp.)
  30. Write basic difference between lock and key model and induced fit model of enzyme action.
  31. Differentiate between plasmogamy and karyogamy. (Most imp.)
  32. Define in clear mitosis in fungi? (Most imp.)
  33. Define parasexuality. In which group of fungi is it present? (Most imp.)
  34. Compare obligate parasites with facultative parasites. (Most imp.)
  35. Give names of four plant diseases caused by fungi. (Most imp.)
  36. What is histoplasmosis? How does its infection spread? (Most imp.)
  37. What is lichen? Give their significance. (Most imp.)
  38. What is mycorrhiza? (Most imp.)
  39. Differentiate between endo-mycorrhizae and ecto-mycorrhiza.
  40. What is the importance of mycorrhizae for plants?
  41. Write structural characters of penicillium.
  42. What is carnivorous fungus? Give examples.
  43. Differentiate between septate and non-septate hyphae. (Most imp)
  44. What do you mean by budding and parasexuality?
  45. What are lichens? Give their role in ecology.
  46. Define placenta. What is its function? Describe briefly harmful insects.
  47. Differentiate between Amniotes and Anamniotes.
  48. Differentiate between parazoa and eurnetazoa. (Most imp)
  49. Differentiate between spiral and radial cleavage. (Most imp)
  50. Give three fundamental characters of chordates.
  51. Summarize importance of sharks. (Most imp)
  52. What are diploblastic animals (Most imp)
  53. What are gemmules? Give their function
  54. What are the reptilian features of archaeopteryx? Most imp.)
  55. What is hermaphroditic animal? Give example. Most imp.)
  56. What is metamorphosis? (Most imp)
  57. What is polymorphism? Give example (Most imp.)
  58. Write down affinities of echinoderms with chordates. ( Most imp.)
  59. Write down two characteristic of amphibians.
  60. Write four parasitic adaptation of flatworms. (Most imp.)
  61. Write the four names of harmful insets.
  62. Define swim bladder, what its function?
  63. Differentiate between radial bilateral symmetry. (Most imp.)
  64. What is infestation how is it caused?
  65. Give two differences between protostomes and deuterostomes.
  66. Name four harmful effects of insects.
  67. What is metameric segmentation? In which phylum is it present? (Most imp.)
  68. Define bioenergetics. (Most imp.)
  69. Define chemiosmosis. (Most imp.)
  70. Define photosynthesis with equation. (Most imp.)
  71. Differentials between Absorption spectrum and Action spectrum. (Most imp.)
  72. Differentiate between alcoholic fermentation and lactic acid fermentation.
  73. Name the processes which act as energy capturing and energy releasing. (Most imp.)
  74. What are accessory pigments? State their role. (Most imp.)
  75. What is an action spectrum? (Most imp.)
  76. What is spectrophotometer? Give its uses. (Most imp.)
  77. What are porphyrin rings? (Most imp.)
  78. Give importance of ATP.
  79. What is fermentation? Give its two types.
  80. Define photosynthesis with the help of an equation.
  81. Differentiate between photolysis and glycolysis.
  82. Differentiate between antenna complex and reaction center.
  83. Write photolysis of water in photosynthesis. (Most imp.)
  84. What is Z-scheme of phosphorylation?
  85. Differentiate between photophosphorylation and oxidative phosphorylation Most imp.)
  86. Define alcoholic fermentation. Write its equation. (Most imp.)

Q.NO# 3 (8/12)

CH # 1, 4, 7,9,14

  1. Compare organelle and organ. (Most imp.)
  2. Define biosphere.
  3. Define chemotherapy. Mention its disadvantage.
  4. Define ecosystem with an example. (Most imp.)
  5. Define population and give an example.
  6. Differentiate between anatomy and morphology (Most imp.)
  7. Differentiate between deductive and inductive reasoning. (Most imp.)
  8. Differentiate between gene therapy and chemotherapy.
  9. Micro molecules and macromolecules.
  10. Differentiate between population and Community. (Most imp.)
  11. Give four characteristics of living organisms.
  12. What are bio elements? Give their proportion in body. (Most imp.)
  13. What do you know about gene thrapy? (Most imp.)
  14. What is a theory? Write down important features of a good theory. (Most imp.)
  15. What is biotechnology?
  16. What is deductive reasoning? Give example?
  17. What is hydroponic culture technique? Give its uses. (Most imp.)
  18. What is phyletic lineage (Most imp?)
  19. Who discovered cell theory?
  20. Write salient features of cell theory. (Most imp.)
  21. What is cell fractionation? (Most imp.)
  22. What is fluid mosaic model of cell membrane? (Most imp.)
  23. Write non in differentially permeable / semi-permeable membranes. (Most imp.)
  24. What is endocytosis?
  25. Differentiate between phagocytosis and pinocytosis. (Most imp.)
  26. Give important functions of cytoplasm. (Most imp.)
  27. Give two functions of smooth endoplasmic reticulum. (Most imp.)
  28. What are proxisomes? Give their function. (Most imp.)
  29. . What are chromoplasts? Give their function. (Most imp.)
  30. . Differentiate between Chromoplast and Leucoplast. (Most imp.)
  31. What is stroma in a chloroplast? Give function.
  32. What is chemical composition of primary and secondary cell wall. (Most imp.)
  33. Write down two functions of Golgi complex.
  34. What are storage diseases? Give an example.
  35. . What is glycogenosis type II disease?
  36. What are microfilaments? Give their functions.
  37. What is nucleolus? Give its function. (Most imp.)
  38. Define autophagosome.
  39. What is resolution of human eye and electron microscope? (Most imp)
  40. What are Foraminiferans and Actinopods?
  41. Write two characteristics of apicomplexans. (Most imp)
  42. What are trichonymphas?
  43. What is a Giant Amoeba? (Most imp.)
  44. Write down three characters of giant amoeba.
  45. What is red tide?
  46. Describe the nuclei of ciliates.
  47. What is the function of micronucleus and macronude diliates?
  48. Write two characteristics of ciliates.
  49. How ciliates differ from other protozoans
  50. How algae differ from Plants?
  51. Write down importance of algae. (Most imp )
  52. Why Phytophthora infestans was infamous in human history? (Most imp.)
  53. Discuss the differences and similarities between fungi and fungus-like protists.
  54. Write two benefits of algae and fungh Most imp.)
  55. What is chlorella? Give its importance (Most imp.)
  56. What are choanoflagellates? Most imp.)
  57. What are apicomplexans? Give example.
  58. What are diatoms?
  59. What are kelps?
  60. Write four important feature of algae.
  61. What are diatoms? Write their Importance.
  62. What are the redtides? Now they are formed? (Most imp.)
  63. What are the apicomplexes?
  64. Write down the importance of algae.
  65. Write down evolutionary significance of euglenoids.
  66. How flagellates obtain food?
  67. Write down the ecological role of dinoflagellates.
  68. Define alternate of generations. (Most imp.)
  69. What the significance of alternation of generation in plants? (Most imp.)
  70. Give four example of ferns.
  71. Define double fertilization angiosperms Give its importance? (Most imp.)
  72. Define circinate vernation? (Most imp.)
  73. What advanced characters are present in sporophyte of anthoceropsida?
  74. Differentiate between dicots and monocots.
  75. How overtopping and webbing occurred in evolution of leaves?
  76. What is double fertilization? (Most imp.)
  77. Why anthoceropsida is considered advanced than other bryophytes?
  78. Write two steps involved in the evolution of seed.
  79. Differentiate between ovule and seed.
  80. Why bryophytes are called amphibious plants? (Most imp.)
  81. Why selaginella is called ancestor of seed plants?
  82. . What are gymnosperms? Give an example.
  83. Differentiate between bryophytes and tracheophytes. (Most imp.
  84. Differentiate between active immunity and passive immunity (Most imp)
  85. Define imbibition. (Most imp.)
  86. Differentiate between plasmolysis and deplasmolysis.
  87. Describe difference between cohesion and adhesion.
  88. Differentiate between single circuit heart and double circuit heart. (Most imp.)
  89. Define solute and pressure potential.
  90. Differentiate between water potential and solute potential.
  91. What are platelets? Give its function. (Most imp.)
  92. What are blue babies? (Most imp.)
  93. What do you know about bleeding in plats?
  94. Tell us about guttation?
  95. What is blood pressure?
  96. Differentiate between cell mediated response and humeral immune response.
  97. What is difference between antigun and antibody?
  98. What is pulmonary circulation?
  99. Differentiate between pulmonary systematic circulations.
  100. What is single circuit heart? Give an example. (Most imp.)
  101. Write a note on electrocardiogram
  102. Write down pressure flow theory who proposed it?
  103. Define active immunity.
  104. State names of two types of leucocytes.
  105. Discuss emphysema.
  106. What is pressure potential?
  107. Differentiate between apoplactic and syrriplastic pathway.
  108. Differentiate between thrombus and embolus.


Q.NO# 4 (6/9)

Ch. # 5, 6, 12, 13

  1. Define Species. (Most imp.)
  2. What is binomial nomenclature? Give an example. (Most imp.)
  3. What are the rules of binomial nomenclature?
  4. Write four characteristics of viruses.
  5. Define obligate intracellular parasite? (Most imp.)
  6. Differentiate between procariotique and eucariotique.
  7. Write names of four common human viral diseases.
  8. What are pocks? (Most imp.)
  9. What is the role of reverse transcriptase in retroviruses? (Most imp.)
  10. Write down biological classification of corn. (Most imp.)
  11. Differentiate between microbicidal and microbistatic effect of chemicals on bacteria.
  12. Differentiate between photosynthetic and chemosynthetic bacteria.
  13. What are pili? Give their function.
  14. Write a note on bacterial nucleoid. (Most imp.)
  15. Write down two postulates of germ theory of disease. (Most imp.)
  16. List the various phases in bacterial growth curve. (Most Imp)
  17. Write the difference between saprophytic and parasitic bacteria (Most imp)
  18. Differentiate between streptococcus and staphylococcus (Most imp)
  19. What is periplasmic space? In which bacteria it is present?
  20. Differentiate between hormogonia and akinetes.
  21. Recognise lophotrichous and amphitrichous/
  22. Differentiate between amphitrichous and peritrichous bacteria.
  23. Define detritivores. (Most imp.)
  24. Define the term heterotrophic.
  25. Define the term omnivores with two examples.
  26. Differentiate between absorption and assimilation. (Most imp.)
  27. Differentiate between secretin and gastrin.
  28. Give the composition of saliva (Most imp.)
  29. Give the features of saprophyte. LNR 2008
  30. How constipation and diarrhea are caused? (Most imp.)
  31. How does the problem of gall stone develop?
  32. What are the symptoms of deficiency of potassium and magnesium in plants?
  33. What are the types of salivary gland in man? (Most imp.)
  34. What do you know fluid feeders?
  35. What is botulism Give its causes. (Most imp.)
  36. What is heart burn and pyrosis? (Most imp.)
  37. Define dyspepsia and also mention its characteristics. (Most imp.)
  38. What are ingredients of gastric juice?
  39. Give two main functions of human liver.
  40. Give name of hormones secreted by digestive system.
  41. Differentiate between sac-like and tube-like digestive system.
  42. What is Chlorosis?
  43. Wat are causes and symptoms of food poisoning?
  44. Differentiate between detritivores and omnivores. ( Most imp.)
  45. How secretion of pancreatic juice and bile is stimulated?
  46. Differentiate between appendix and appendicitis.
  47. Differentiate between ingestion and egestion.
  48. Write the role of human pancreas in digestion. (Most imp.)
  49. What are the piles?
  50. How Sundew (Drosera ) shows its insectivorous activity? (Most imp.)
  51. What are alveoli? Give their function. (Most imp.)
  52. Differentiate between external and cellular respiration. (Most imp.)
  53. Differentiate between inspiration and expiration.
  54. Give percentage of CO2 in arterial and venous blood. (Most imp.)
  55. Give the composition of exhaled air in man.
  56. How respiration takes place through cork tissue?
  57. How the concentration of CO2 affects the capacity of hemoglobin to combine with 02?
  58. What is operculum? (Most imp.)
  59. What are parabronchi? (Most imp.)
  60. . What are spiracles? (Most imp.)
  61. What are two properties of respiratory surfaces in animals? (Most imp.)
  62. How the volume of chest cavity is reduced during expiration.
  63. What changes occur in diving reflex? (Most imp.
  64. What is photorespiration?
  65. What is respiratory distress syndrome? (Most imp.)
  66. Why is air better respiratory medium than water? (Most imp.)
  67. Write causes of lung cancer.
  68. What is cutaneous respiration?
  69. What is cancer or carcinoma?
  70. Write down first two steps of photorespiration.
  71. What do you know about Rubisco function? (Most imp.)
  72. . How exhalation and inhalation occur in Cockroach?
  73. Define respiratory surface. Write their properties.
  74. Differentiate between pulmonary and cutaneous respiration. (Most imp.).
  75. How do spiracles differ from tracheoles?
  76. What is myoglobin? Give its functions.
  77. How carbon dioxide is budded by the cell wall of the mesophyll cells?
  78. How does respiration take place in earthworm?
  79. Enlist types of respiration in frog.
  80. What is asthma Give causes? (Most imp.)
  81. Describe the Cos concentration in artery and venous blood of man.
  82. Give percentage of CO2 in arterial and venous blood.
  83. What the important factors which affect the capacity of hemoglobin to combine with oxygen.
  84. Write different ways of respiration in frog.
  85. What is larynx or voice box?
  86. What is the rate of breathing at rest and during exercise? (Most imp.)
  87. Differentiate between bronchi and bronchioles.
  88. What is diving reflex? (Most imp.)


Long Questions 11th Class Biology Guess Paper 

Question No # 5 (Ch. # 1+14)

  1. What is cloning? Discuss its methods and applications.
  2. Describe biological organization at organelles and cell level.
  3. Write a note on conservation and protection of environment.
  4. Discuss Biology in the service of mankind in field of disease control.
  5. Soil water moves and reaches xylem tissues by various pathways explain.
  6. Give various components and functions of Lymphatic System.
  7. Write a comprehensive note on functions of blood.
  8. Discuss transpiration as a necessary evil.
  9. Discuss two main types of immunity.
  10. Define transpiration and describe the mechanism of opening and closing of stomata

    Question No # 6 (Ch. # 2+8) 11th class biology guess paper

    1. What are polysaccharides? Describe different types and give example.
    2. Describe three main types of Ribonucleic Acids (RNA )
    3. Write the Watson and Crick model of DNA.
    4. Compare monosaccharide with oligosaccharide.
    5. Describe biological properties and importance of water.
    6. Explain taxonomic status of fungi.
    7. Give a detailed account on economic losses due to fungi?
    8. Explain mutualistic nutrition in fungi.
    9. Explain various economic gains due to fungi.
    10. Describe asexual reproduction in fungi.

Question No # 7 (Ch. # 4+12) 11th class biology guess

  1. What are plastids? Explain the structure and function of chloroplast. Draw figure.
  2. Write a note on cytoskeleton.
  3. Explain the structure and functions lysosomes.
  4. Write a note on Ribosomes.
  5. Discuss structure and function chloroplast.
  6. Write a note on glyoxisomes.
  7. Describe digitation in stomach of man.
  8. Explain role of small intestine in food absorption in man.
  9. Give the role large intestine in human beings.
  10. Discuss the process of nutrition insectivorous plants.
  11. Write a note on digestion in amoeba (with diagram)
  12. Discuss digestion and absorption in small intestine.

Question No # 8 (Ch. # 5+11) 11th class biology guess

  1. Describe Linnaeus’s system of binomial nomenclature in detail and Give its rules.
  2. What are viruses and Give their three characteristics
  3. Describe structure of viruses.
  4. Draw life cycle of bacteriophage.
  5. Describe lytic cycle of bacteriophage (with diagram)
  6. Tell about infection cycle of HIV (with diagram)
  7. What is hepatitis?
  8. Write the process of non-cyclic phosphorylation in detail.
  9. Describe in detail cyclic phosphorylation with the help of a diagram.
  10. Give in detail the phases of Calvin cycle.
  11. What is glycolysis and Give its outline (sketch).
  12. Explain and sketch Krebs cycle and discuss its energy yielding steps.
  13. Sketch the Krebs cycle (no description)

Question No # 9 (Ch. # 6+9) 11th class biology guess

  1. Explain general characteristics of cyanobacteria with special reference to Nostoc.
  2. Describe habitat, structure and reproduction in Nostoc.
  3. Explain about use and misuse of antibiotics.
  4. Differentiate between gram positive and gram negative bacteria.
  5. Discuss nutrition in bacteria.
  6. Give detailed life cycle of adiantum and sketch it.
  7. Write main steps of evolution of seed.
  8. Discuss economic importance of family poaceae.
  9. Describe the different adaptive characters for terrestrial environment in bryophyte
  10. Discuss evolution of megaphyll leaf.

11th Class Computer Science Guess paper

11th Class English Guess Paper

12th Class All Subjects Guess Paper


Check Also

12th Class Pak Study Guess Paper 2019

12th Class Pak Study Guess Paper 2019 This is the 12th class pak study guess …

Leave a Reply

Your email address will not be published. Required fields are marked *