Guess Paper 9th Class Biology English Medium

• Very Important Multiple Choice Questions of full book Biology in Urdu and English Medium class 9 from previous 20 years past papers of all Punjab Boards.
• Here are the detailed Guess Paper 9th Class Biology 2025 English Medium to help you prepare for your exams.
• Important Short and Long Questions of Biology in Urdu and English Medium class 9 from previous 20 years past papers of all Punjab Boards.
• In 1876 meiosis was discovered by: (A) August Weismann  (B) Golgi  (C) Walther Fleming  (D) Oscar Hertwing 
• Look and key model of enzyme action was proposed by:  (A) Emil Fischer  (B) Winhelm  (C) Calvin  (D) Daniel Koshland 
• The most important photosynthetic pigment is: (A) Chlorophyll a  (B) Chlorophyll b,  (C) Chromoplast  (D) Carotenoid 
• One gram lipids contains energy.  (A) 04K. Cal  (B) 06.K. Cal  (C) 09 K. Cal  (D) 3.8 K. Cal
• About what percentage of our population is diabetie?  (A) 10%  (B) 12%  (C) 25%  (D) 33%
• In normal adult  the mass of heat is:  (A) 210…250g  (B) 250…. 350g  (C) 250 … 350g  (D) 350….400g
• Which of these major bio-elements is in the highest percentage of protoplasm? (A) Carbon  (B) Hydrogen  (C) Oxygen  (D) Nitrogen 
• The part of earth inhabited by organisms communities is known as:  (A) Population  (B) Biosphere  (C) Species  (D) Co- ordination 
• The basic step  of biological method is:  (A) Hypothesis  (B) Deduction  (C) Experiments  (D) Observation
• Scientific name of star fish (Sea Stat) is:  (A) Allium Cape  (B) Zia _ maize  (C) Asterias rubens  (D) Carvus Splendens
• Chemical present in the cell wall of plant is: (A) Chitin  (B) Lignin  (C) Cellulose  (D) Plasmodes 
• In 1974 Noble Prize Physiology and medicines won by:  (A) Rene de Due  (B) Golgi  (C) Lamark  (D) Aristotle 
• Define biochemistry and morphology.
• Define molecular biology.
• Differentiate morphology and physiology.
• Give examples of qualitative and quantitative observations.
• How quantitative observations are better in biological method?
• Write two bases of five kingdom system of classification.
• What is difference between autotrophs and heterotrophs?
• Write down the characteristics of a kingdom Monera.
• What is the difference between primary and secondary walls of a cell wall of plants?
• What is the difference between micro tubules and micro filaments?
• What is the difference between hypertonic and hypotonic solution?
• Differentiate between plasma membrane and cell membrane.
• Differentiate between diffusion and osmosis. And give example.
• What is the difference between disjunction and non disjunction?
• What are the effects of errors in Meiosis? 
• Differentiate between catabolism and anabolism.
• Define the terms enzyme and substrate.
• Write down the two characteristics of enzymes.
• Enzymes lower the activation energy in several ways. How?
• Differentiate between protease enzyme and amylase enzyme.
• What is the difference between intracellular and extracellular enzymes?
• What are lenticels? Where are they found in plant body?
• Write down two reasons for creation of transpiration pull.
• Why transpiration is called a necessary evil?
• What are the offerings professions that a biology student can plan to adopt? Describe the details of each one.
• Describe the work of some Muslim scientists in the field of biology.
• What is meant by binomial nomenclature? Describe the rules which are adopted while suggesting the scientific names.
• 5. (a). Define any five divisions of Biology.
• (b). Explain the structure of cell membrane.
• 6. (a). Describe the factors which affect  the rate of enzyme action.
• (b). Describe the mechanism of respiration.
• 7.(a). Write down the importance of fertilizers.
• (b). Write down the detail of disorders of blood.