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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تمام کیلشیم کے ذرائع ہیں سوائے؟
Answer: Red meat
Explanation Red meat is a good source of protein and other nutrients. It is not a significant source of calcium.
ہر گرام چربی جسم کو تقریباً ______ کیلوریز فراہم کرتی ہے۔
Answer: 9
Explanation Each gram of fat supplies the body with approximately 9 calories. This is more than the energy provided by carbohydrates (4 calories per gram) and protein (4 calories per gram).
مییووسس کا مرحلہ جس میں سنٹرومیرز چھوٹے ہو جاتے ہیں اور جوڑے ہوئے کرومیٹڈس ایک دوسرے سے دور ہو جاتے ہیں؟
Answer: Anaphase-II
Explanation In Anaphase-II of meiosis, the centromeres shorten and the paired chromatids (sister chromatids) are pulled away from one another, moving to opposite poles of the cell. This is the stage where the genetic material is finally separated, and each pole receives a complete set of chromosomes.
وسیع میٹابولک سرگرمی کا دورانیہ، جس میں سیل بڑھتا ہے، انزائمز کی ترکیب ہوتی ہے؟
Answer: G1 phase
Explanation The G1 phase (Gap 1 phase) is the period of extensive metabolic activity in the cell cycle where the cell grows , enzymes are synthesized, and DNA is replicated. This phase is also known as the interphase or the growth phase.
کروموسوم دھاگے کی طرح ہیں جیسے ڈھانچے _____ کے وقت ظاہر ہوتے ہیں؟
Answer: Cell division
Explanation Chromosomes are thread-like structures that appear during cell division, specifically during the prophase stage of mitosis or meiosis. They are made up of condensed chromatin and carry genetic information from one generation of cells to the next.
سیلولر سانس لینے کے عمل میں 180 اے ٹی پی مالیکیولز تیار ہوتے ہیں، اس عمل کے دوران گلوکوز کے کتنے مول استعمال ہوتے ہیں؟
Answer: 5
Explanation In cellular respiration, each mole of glucose typically produces about 36-38 ATP molecules. To determine how many moles of glucose are consumed to produce 180 ATP molecules, we can use the following calculation: 180 ATP/36 ATP or mole of glucose = 5 moles of glucose Thus, 5 moles of glucose are consumed to produce 180 ATP molecules.
ریڈیو لیبلنگ اور کاربن ڈیٹنگ بھی فوسلز کے ____ کا تعین کرنے میں تابکار آاسوٹوپس کے کچھ استعمال دکھاتی ہے۔
Answer: Age
Explanation Radioactive isotopes, such as carbon-14 and uranium-238, decay at a steady rate. It allowing scientists to measure the age of fossils and rocks. This technique is known as radiometric dating.
سیل ڈویژن کی ایک قسم جس میں بیضہ مادر سیل بیضہ پیدا کرتا ہے؟
Answer: Meiosis
Explanation Meiosis is a type of cell division that occurs in spore-producing organisms, such as plants and fungi, to produce spores. In meiosis, a diploid spore mother cell (sporocyte) undergoes two successive cell divisions (meiosis I and meiosis II) to produce four haploid spores.
مقداری مشاہدہ _____ کا استعمال ہے؟
Answer: Equipment
Explanation Quantitative observation involves the use of instruments, tools, or equipment to measure and collect numerical data about the world. This approach focuses on quantifying properties , such as length, mass, temperature, or time, to describe phenomena accurately. Examples of equipment used in quantitative observation include: Thermometers Spectrophotometers Microscopes Telescopes Stopwatches Balances
انزائمز _____ ایکٹیویشن انرجی کے ذریعے کیمیائی رد عمل کو متحرک کرتے ہیں۔
Answer: Lowering
Explanation Enzymes lower the activation energy , allowing the reaction to proceed faster and more efficiently. This enables the reaction to occur with less energy input , making it more feasible and rapid.
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