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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کاربوہائیڈریٹ جو جلدی ہضم ہو جاتے ہیں انہیں ____ کہتے ہیں؟
Answer: Starch
Explanation Starch is a type of carbohydrate that is quickly digested by the body. It is a complex carbohydrate made up of long chains of glucose molecules. It found in foods such as bread, pasta, and potatoes.
مچھلی ______ کے بہترین ذرائع میں سے ایک ہے؟
Answer: Protein
Explanation Fish is an excellent source of protein. It is essential for building and repairing muscles, organs, and tissues in the body.
خلیے میں موجود کروموسوم جو شکل اور جسامت میں ایک دوسرے سے ملتے جلتے ہیں انہیں ____ کہا جاتا ہے؟
Answer: Homologous pair
Explanation Homologous pairs are chromosomes that are similar in shape, size, and genetic content, and contain the same genes in the same order. They are pairs of chromosomes that are inherited one from each parent. They are responsible for determining the traits and characteristics of an organism.
سائنسی استدلال مخصوص سے عمومی ____ میں منتقل ہوتا ہے؟
Answer: Inductive
Explanation Scientific reasoning involves both inductive and deductive approaches: Inductive reasoning moves from specific observations to general conclusions ( specific → general ). Deductive reasoning moves from general principles to specific conclusions ( general → specific ).
کیریئر پروٹین کے ذریعے مخصوص مادوں کی خاص قسم کی حرکت _____ ہے؟
Answer: Facilitated diffusion
Explanation Facilitated diffusion is a type of passive transport that uses carrier proteins to move specific substances across the cell membrane without energy input. This process allows cells to regulate the movement of essential molecules, like sugars and amino acids, into or out of the cell.
حیاتیاتی عناصر جو زندگی کے لیے اہم سمجھے جاتے ہیں وہ ______ اراکین یا تعداد میں ہوتے ہیں۔
Answer: 16
Explanation The number of bioelements considered vital for life is 16 . These essential elements include: Carbon (C) Hydrogen (H) Oxygen (O) Nitrogen (N) Phosphorus (P) Sulfur (S) Potassium (K) Calcium (Ca) Magnesium (Mg) Iron (Fe) Sodium (Na) Chlorine (Cl) Copper (Cu) Zinc (Zn) Manganese (Mn) Iodine (I)
ایک جانور جو بہت فاصلے پر منتقل ہوتا ہے اپنی توانائی کو ____ کے طور پر ذخیرہ کرنے سے سب سے زیادہ فائدہ حاصل کرے گا؟
Answer: Fats
Explanation Animals that migrate long distances need a compact and energy-dense source of fuel to sustain them during their journey. Fat is the most energy-dense nutrient , providing approximately 9 kcal/g, compared to carbohydrates (4 kcal/g) and protein (4 kcal/g).
دو کرومیٹڈز ______ پر ایک دوسرے سے منسلک ہیں؟
Answer: Centromere
Explanation The centromere is the region where the two chromatids (sister chromatids) are attached to each other. It serves as a constricted region that holds the chromatids together until they separate during cell division.
فتوسنتھیسس کے دوران پیدا ہونے والا بنیادی مالیکیول ______ ہے؟
Answer: Glucose
Explanation The fundamental molecule produced during p hotosynthesis is glucose Key Product: Glucose (sugar/carbohydrate) is the main energy-storing molecule. Purpose: It is used for plant respiration and as a building block for cellulose. By-product: Oxygen is also produced and released into the atmosphere
فعال سائٹ مسلسل اپنی شکل بدلتی رہتی ہے جب تک کہ سبسٹریٹ اس سے منسلک نہ ہو جائے، یہ ______ کا بیان ہے؟
Answer: Induce fit model
Explanation The induced fit model proposes that the active site of an enzyme is flexible and changes shape until the substrate binds, much like a glove molding to fit a hand. This model suggests that the enzyme adapts to the substrate, rather than the substrate simply fitting into a pre-existing lock.
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