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.
Continue your revision with related topics: Biology Class 10th MCQs MCQs, Chemistry Class 10th MCQs MCQs, Chemistry Class 9th MCQs MCQs, General Science Class 10 MCQs MCQs, General Science Class 4 MCQs MCQs, General Science Class 5 MCQs MCQs, General Science Class 6 MCQs MCQs, General Science Class 7 MCQs MCQs.
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Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.
پودوں میں، سیل کی دیوار بنیادی طور پر ____ کے مضبوط ریشوں پر مشتمل ہوتی ہے؟
Answer: Cellulose
Explanation In plants, the cell wall is primarily composed of strong fibers of cellulose , a type of carbohydrate. Cellulose is a polymer of glucose molecules that provides structural support, rigidity, and protection to the plant cell.
غذائی پروٹین کی کمی، گیسٹرو آنتوں کے نظام میں عدم توازن کا سبب بنتی ہے؟
Answer: Kwashiorkor
Explanation Kwashiorkor is a condition caused by a deficiency of dietary protein, leading to an imbalance in the gastro-intestinal system. It is characterized by: Edema (swelling) in the legs, feet, and face Diarrhea Weight loss Hair loss Skin lesions Impaired immune function
تالا اور کلیدی ماڈل کے بارے میں صحیح بیان کا انتخاب کریں؟
Answer: Enzyme and substrate posses' specific complementary geometric shapes
Explanation The lock and key model proposes that the enzyme and substrate have specific, complementary geometric shapes that fit together perfectly , like a key fitting into a lock. This means that the active site of the enzyme is a rigid, pre-formed structure that perfectly complements the shape of the substrate.
وہ جاندار جو اپنی خوراک مردہ اور بوسیدہ نامیاتی مادوں سے حاصل کرتے ہیں؟
Answer: Saprotrophs
Explanation Some organisms feed on dead and decaying organic matter instead of living organisms. These organisms are called saprotrophs . They play an important role in decomposition and nutrient recycling in ecosystems. Examples include fungi, bacteria, and some protists . Last verified on 01-02-2026
مندرجہ ذیل میں سے کون سا مماثل ہے؟
Answer: Proteases → Carbohydrate
Explanation The mismatched pair is : Proteases → Carbohydrate Proteases are enzymes that break down proteins, not carbohydrates.
جانداروں میں توانائی ایک خاص مالیکیول میں ذخیرہ ہوتی ہے جسے _____ کہتے ہیں؟
Answer: ATP
Explanation ATP (Adenosine Triphosphate) is a molecule that stores energy in the form of phosphate bonds. It is often referred to as the " energy currency " of the cell, as it can be easily converted into other forms of energy that are needed by the cell.
سائنسی طریقہ کار کا آخری مرحلہ ترقی کر رہا ہے؟
Answer: Conclusion
Explanation The final step of the scientific method is developing a conclusion. It involves summarizing the findings , interpreting the data, and determining whether the hypothesis was supported or rejected. The scientific method steps in order: Observation Hypothesis Prediction Research Experimentation Data Analysis Conclusion
مائٹوسس کے میٹا فیز میں کیا ہوتا ہے؟
Answer: Chromosome line up on the equator of the cell
Explanation In metaphase , the chromosomes (now consisting of two sister chromatids each) align themselves at the center of the cell, attached to the microtubules of the mitotic spindle. This forms the metaphase plate , where each chromosome is positioned at the equator of the cell, ready for separation.
الیکٹران میں نظر آنے والی روشنی سے بہت کم طول موج ہے، اور یہ الیکٹران خوردبین کو _____ تصاویر بنانے کی اجازت دیتا ہے۔
Answer: Higher-resolution
Explanation Electron microscopes produce higher-resolution images due to the shorter wavelength of electrons compared to visible light. This enables them to reveal smaller details and structures that are not visible with light microscopes.
مندرجہ ذیل میں سے کون سا وٹامن اس کے استعمال سے صحیح طور پر منسلک ہے؟
Answer: Vitamin A → Incorporated into the visual pigment of the eye
Explanation Vitamin A is essential for the production of rhodopsin, the visual pigment in the retina that allows us to see in low light conditions.
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