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.

1. In human digestive system trachea and oesophagus both connect to the _____?

انسانی نظام انہضام میں ٹریچیا اور غذائی نالی دونوں _____ سے جڑتے ہیں؟

Check answer and explanation

Answer: Pharynx

Explanation The pharynx (throat) is a shared passage for both the respiratory and digestive systems. The trachea (windpipe) and esophagus both connect to the pharynx: The trachea connects to the pharynx anteriorly (front) and leads to the lungs. The esophagus connects to the pharynx posteriorly (back) and leads to the stomach.

2. In the taxonomic hierarchy choose the term which encompasses all other in the list?

درجہ بندی کے درجہ بندی میں اس اصطلاح کا انتخاب کریں جس میں فہرست میں موجود دیگر سبھی شامل ہوں؟

Check answer and explanation

Answer: Class

Explanation In the taxonomic hierarchy , Class is the most inclusive and encompasses all the other terms: Class includes multiple Orders Order includes multiple Families Family includes multiple Genera (plural of Genus) Genus includes multiple Species

3. Rate of reaction will increase when temperature ______?

درجہ حرارت ______ ہونے پر رد عمل کی شرح بڑھے گی؟

Check answer and explanation

Answer: Increases

Explanation The rate of a chemical reaction typically increases when the temperature increases . As higher temperatures provide more energy for the reactant molecules to collide and react.

4. Feeding sequences and relationships are called?

کھانا کھلانے کے سلسلے اور رشتوں کو ____ کہتے ہیں؟

Check answer and explanation

Answer: Food chains

Explanation Food chains are linear sequences showing the feeding relationships between organisms in an ecosystem. They illustrate how energy and nutrients are passed from one organism to another , from producers (like plants) to consumers (like animals).

5. There are ____ types of metabolic reactions.

میٹابولک رد عمل کی ____ اقسام ہیں۔

Check answer and explanation

Answer: Two

Explanation There are indeed two main types of metabolic reactions: Anabolic reactions ( building molecules, requiring energy ) Catabolic reactions ( breaking down molecules, releasing energy )

6. The point where the enzyme is most active is known as ______?

وہ نقطہ جہاں انزائم سب سے زیادہ فعال ہے ______ کے نام سے جانا جاتا ہے؟

Check answer and explanation

Answer: Optimum pH

Explanation Optimum pH is the point where an enzyme is most active. It is the pH at which the enzyme catalyzes the reaction at its maximum rate. Different enzymes have different optimum pH values , depending on their structure and function.

7. The study of distribution of different living organisms in different regions of the world is called?

دنیا کے مختلف خطوں میں مختلف جانداروں کی تقسیم کے مطالعہ کو کیا کہتے ہیں؟

Check answer and explanation

Answer: Biogeography

Explanation Biogeography is the study of the distribution of living organisms across different regions of the world. Including the factors that influence their distribution. Such as geography, climate, geology, and evolutionary history.

8. In data organization, which method is mostly useful?

ڈیٹا آرگنائزیشن میں، کون سا طریقہ زیادہ تر مفید ہے؟

Check answer and explanation

Answer: Both a and b

Explanation Tables and graphs are both essential methods for organizing and visualizing data, and they complement each other. Tables are useful for: Displaying precise values and data points Organizing large datasets Performing calculations and data analysis Graphs are useful for: Visualizing trends and patterns Displaying relationships between variables Communicating complex data insights effectively

9. Colourless, irregular in shape, nucleated and larger sized cell than R.B.Cs called?

بے رنگ، شکل میں بے ترتیب، نیوکلیٹیڈ اور خون کے سرخ خلیے سے بڑے خلیے کو کہتے ہیں؟

Check answer and explanation

Answer: Leucocytes

Explanation Leucocytes are also known as white blood cells. They are colorless, irregularly shaped , nucleated cells that are larger in size compared to red blood cells (RBCs). They play a vital role in the immune system , helping to fight infections and diseases.

10. Biological method involves all of the following except?

حیاتیاتی طریقہ میں درج ذیل میں سے سب شامل ہیں سوائے؟

Check answer and explanation

Answer: Proportion

Explanation Proportion is a mathematical concept, not a step in the biological method. The biological method involves observation , data collection, and experimentation to develop and test hypothesis.

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