Practise Biology Class 9th MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Study Biology Class 9th MCQs through multiple-choice questions in General Science. This subtopic contains 178 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Biology Class 9th MCQs MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
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میٹابولک رد عمل ______ ہیں؟
Answer: Both A and B
Explanation Metabolic reactions are both constructive (anabolic) and destructive (catabolic) reactions.
کیمیائی رد عمل کو مناسب شرح سے نیچے لے جانے کے لیے خاص حالات کی ضرورت ہوتی ہے، خاص طور پر؟
Answer: Temperature and Pressure
Explanation Chemical reactions require specific conditions to proceed at a proper rate. Temperature and pressure are two of the most important factors that influence reaction rates.
دوران خون کی ایک قسم جو ٹشوز کے درمیان خالی جگہوں سے گزرتی ہے؟
Answer: Open type circulatory system
Explanation In an open circulatory system , blood bathes the tissues directly, flowing through spaces among tissues , such as sinuses or lacunae . This type of circulation is found in: Invertebrates like insects, mollusks, and crustaceans Some lower vertebrates like fish and amphibians
پرنٹ ہونے پر کسی بھی جاندار کا سائنسی نام _____ ہونا چاہیے۔
Answer: Italicized
Explanation Scientific names of organisms , also known as binomial nomenclature, should be printed in italics. This is a universal convention in scientific writing to distinguish the scientific name from the rest of the text.
وہ رجحان جس میں ہومولوس کروموسوم کا جوڑا الگ ہونے میں ناکام ہو جاتا ہے جسے _____ کہا جاتا ہے؟
Answer: Non-disjunction
Explanation Non-disjunction is the phenomenon where a pair of homologous chromosomes (or a pair of sister chromatids) fails to separate properly during meiosis. Resulting in an abnormal number of chromosomes in the daughter cells. This can lead to genetic abnormalities , such as Down syndrome (trisomy 21), or other chromosomal disorders.
انسانی دل میں پھیپھڑوں سے لوٹنے والا خون پہلے _____ میں جاتا ہے؟
Answer: Left atrium
Explanation In the human heart, blood returning from the lungs via the pulmonary veins drains into the left atrium. From there, it flows through the mitral valve into the left ventricle, which pumps it out to the rest of the body through the aorta.
دو قدروں کے موازنہ کو _____ کہا جاتا ہے؟
Answer: Ratio
Explanation A ratio is a comparison of two values or quantities , often expressed as a fraction or a decimal. It shows the relative size or magnitude of one value compared to another. For example : 2:3 or 2/3 is a ratio comparing the value 2 to the value 3.
مندرجہ ذیل میں سے عجیب کو منتخب کریں؟
Answer: Active transport
Explanation The odd one out is Active transport. Active transport requires energy (ATP) to move substances against their concentration gradient. Whereas diffusion, facilitated diffusion and osmosis are passive processes.
سب سے زیادہ ارتکاز میں مطلوبہ غذائی اجزاء کو ______ کہتے ہیں؟
Answer: Macronutrients
Explanation Macronutrients are the nutrients that are needed in the highest concentration by living organisms. They include carbohydrates, proteins, and fats , which provide energy and support growth and maintenance of tissues.
مماثل ایک کو منتخب کریں؟
Answer: Fats → Starch
Explanation The Fats is Lipid or Fatty acid, not Starch. Starch is a type of carbohydrate .
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