Important MCQs of Biology Class 9

• Important Multiple Choice Questions ( MCQs ) for Biology 9th Class in English and Urdu Medium Punjab Textbook Board.
• Here are the detailed important mcqs of biology class 9 2025 to help you prepare for your exams.
• Note: Four possible answers A, B, C and D to each question are given. The choice which you think is correct, fill that circle in front of that question with Marker or Pen ink.
• In most plants food is transported in the form of:  (A) Glucose  (B) Sucrose  (C) Starch  (D) Protein
• Which chamber has thickest walls in human heart?  (A) Left atrium  (B) Right atrium  (C) Left ventricle  (D) Right ventricle
• Scientific study of animals is called:  (A) Biology  (B) Zoology  (C) Botany  (D) Microbiology
• The author of the book “Al-Qanun-fil-Tib” is:  (A) Jabir Bin Hayan  (B) Abdul Malik Asmai  (C) Bu Ali Sina  (D) Robert Brown
• Those hypothesis that stand the test of time and never rejected.  (A) Theories  (B) Laws  (C) Principle  (D) Deductions
• In bionomial nomenclature the first letter of the ____ name is capitalized:  (A) Family  (B) Class  (C) Genus  (D) Species
• Ribosomes are produced:  (A) Endoplasmic reticulum  (B) Nucleoid  (C) Nucleolus  (D) Nuclear pore
• Colourless plastids are called:  (A) Chloroplast  (B) Chromoplast  (C) Leucoplast  (D) Etioplast
• Cells which form the body of organism are called:  (A) Germ cells  (B) Gametes  (C) Somatic cells  (D) Parent cell
• Enzyme involved in break down of starch is:  (A) Lipase  (B) Protease  (C) Amylase  (D) Pepsin
• Process of glycolysis occurs in:  (A) Cytoplasm  (B) Nucleus  (C) Mitochondria  (D) Chloroplast
• In stomach, pepsinogen is converted into. (A) Pepsin  (B) Bicarbonate  (C) HCL  (D) Gastrin
• A related group of Genera comprises of:  (A) A Phylum  (B) A Class  (C) A Family  (D) An order
• The Tentative Explanation of Observation is called: (A) Experiments  (B) Hypothesis  (C) Deduction  (D) Theory
• Members of the same species living in the same place at the same time makes a: (a) Population (b) Community (c) Biosphere (d) Habitat
• Houbara Bustard migrates to Pakistan in the Season:  (A) Winter  (B) Autumn  (C) Spring  (D) Summer
• In which Phase of Mitosis, Spindle are formed:  (A) Metaphase  (B) Prophase  (C) Interphase  (D) Telophase
• Resolving Power of Light Microscope is: (A) Micrometer 0.6 (B) Micrometer 0.4 (C) Micrometer 0.2 (D) Micrometer 0.8
• Cell Wall is absent in which Organism:  (A) Fungi  (B) Bacteria  (C) Animals (D) Plants
• The Enzyme which acts only on Lipids is: (A) Protease (B) Pepsin (C) Amylase (D) Lipase
• Temperature at which transpiration stops: (A) 20 – 50° (B) 30 – 40° (C) 10 – 20° (D) 40 – 45°
• Villi are found in the Organ: (A) Large Intestine (B) Small Intestine (C) Stomach (D) Oesophagus
• Oxygen is produced as a by Product in the Process:  (A) Photosynthesis (B) Fermentation (C) Transpiration (D) Respiration
• Death of Heart Tissues is called:  (A) Arteriosclerosis  (B) Atherosclerosis  (C) Thalasssaemia  (D) Myocardial Infarction
• Chromosomes are composed of:  (A) DNA and protein  (B) lipids  (C) DNA  (D) RNA
• Cell wall prokaryotes is composed of:  (A) Cellulose  (B) peptidoglycan  (C) chitin  (D) plasmodes
• Nuclear envelope is absent in: (A) monera  (B) protista  (C) fungi  (D) plantae
• Five kingdom classification system was introduced by:  (A) E.Chatton  (B) Margulis  (C) Ibn Rushd  (D) Robert Whittaker
• The first step in solving a biological problem is:  (A) Experimentation  (B) Formulation of hypothesis  (C) Observation  (D) Deduction
• The study of fossils is called:  (A) Taxonomy  (B) Palaeontology  (C) Sociobiology  (D) Genetics