Biology Class 9th MCQs MCQs - General Science Practice | PakExamPoint

Practise Biology Class 9th MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.

Biology Class 9th MCQs MCQs and revision practice

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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Biology Class 9th MCQs: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

41. Laws and techniques of physics are applied to explain the living processes of life?

زندگی کے زندہ عمل کی وضاحت کے لیے طبیعیات کے قوانین اور تکنیکوں کو کیا کہتے ہیں؟

Check answer and explanation

Answer: Biophysics

Explanation Biophysics is an interdisciplinary field that applies the laws and techniques of physics to study the structure, function, and behavior of living systems, from molecules to entire organisms. It seeks to understand the physical principles underlying biological processes, such as energy transfer, transport, and signaling.

42. Which of these are involved in the clotting of blood?

ان میں سے کون سے خون جمنے میں ملوث ہیں؟

Check answer and explanation

Answer: Platelets

Explanation Platelets, also called thrombocytes. They are blood cells that play a vital role in blood clotting. When a blood vessel is injured , platelets aggregate to form a plug that stops the bleeding. Last verified on 02-04-2026

43. Ratio is comparison of _____ values.

تناسب _____ اقدار کا موازنہ ہے۔

Check answer and explanation

Answer: Two

Explanation A ratio is a comparison of two values , often expressed as a fraction or a decimal. It shows the relative size or quantity of one value in relation to another. For example : A ratio of 3:4 (or 3/4) compares two values, 3 and 4.

44. Biological name of cat?

بلی کا حیاتیاتی نام کیا ہے؟

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Answer: Felis catus

Explanation Felis catus is the scientific name for the domestic cat. It belongs to the family Felidae and is a member of the order Carnivora.

45. Which of the following is true of bile salts?

پتوں کے نمکیات کے بارے میں مندرجہ ذیل میں سے کون سا سچ ہے؟

Check answer and explanation

Answer: They emulsify fats in the duodenum

Explanation Bile salts are produced by the liver and stored in the gallbladder. They are released into the duodenum (the first part of the small intestine) to facilitate fat digestion.

46. Each mole of ATP store energy?

اے ٹی پی کا ہر تل کتنی توانائی ذخیرہ کرتا ہے؟

Check answer and explanation

Answer: 7.3 kcal/mole

Explanation Each mole of ATP (Adenosine Triphosphate) stores energy equivalent to: 7.3 kilocalories (kcal) per mole (approximately) 17.3 kilojoules (kJ) per mole (approximately)

47. Identify the correct sequence of classifying an organism?

جاندار کی درجہ بندی کی صحیح ترتیب کی نشاندہی کریں؟

Check answer and explanation

Answer: Kingdom → Phylum → Class → Order → Family → Genus → Species

Explanation The correct sequence of classifying an organism is : Kingdom → Phylum → Class → Order → Family → Genus → Species This sequence is known as the taxonomic hierarchy or Linnaean system, developed by Carl Linnaeus. It categorizes living things from most general (Kingdom) to most specific (Species).

48. Microscopes are instrument designed to produce _____ visual image.

خوردبین ایک ایسا آلہ ہے جسے _____ بصری تصویر بنانے کے لیے ڈیزائن کیا گیا ہے۔

Check answer and explanation

Answer: Magnified

Explanation Microscopes are instruments designed to produce magnified visual images of small objects or samples. It allowing us to see details that are not visible to the naked eye.

49. Cutting down of trees called?

درختوں کی کٹائی کو _____ کہتے ہیں؟

Check answer and explanation

Answer: Deforestation

Explanation Deforestation is the permanent removal of forests , usually as a result of human activities like logging, agriculture, urbanization, and mining. It leads to the loss of habitats , biodiversity, and ecosystem services, as well as contributing to climate change.

50. Chloroplast is double membrane bounded organelle have semifluid protein containing membrane called ____?

کلوروپلاسٹ دوہری جھلی سے منسلک آرگنیل ہے جس میں نیم سیال پروٹین ہوتا ہے جس میں جھلی ____ کہا جاتا ہے؟

Check answer and explanation

Answer: Stroma

Explanation Chloroplasts are double membrane-bound organelles found in plant cells and some algae, responsible for photosynthesis. The stroma is the semifluid protein-containing region within the chloroplast where light-dependent reactions occur.

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