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.

101. In five kingdom system virus placed in ______?

پانچ بادشاہی نظام میں وائرس ______ میں رکھا گیا ہے؟

Check answer and explanation

Answer: None of these

Explanation In the five-kingdom system , viruses are not placed in any of the five kingdoms: Monera (bacteria) Protista (eukaryotic organisms) Plantae (plants) Animalia (animals) Fungi (fungi) Viruses are considered non-living entities. So, in the five-kingdom system , viruses are not classified in any of the five kingdoms.

102. In chloroplast different pigments absorb light of different _____?

کلوروپلاسٹ میں مختلف روغن مختلف _____ کی روشنی کو جذب کرتے ہیں؟

Check answer and explanation

Answer: Wavelength

Explanation Chloroplasts contain various pigments like chlorophyll, carotenoids, and phycobiliproteins, which absorb light of different wavelengths. This allows plants to capture a broad spectrum of light energy and use it for photosynthesis.

103. Which of the following is the correct way of writing a scientific name of an organism?

کسی جاندار کا سائنسی نام لکھنے کا درج ذیل میں سے کون سا طریقہ درست ہے؟

Check answer and explanation

Answer: Houbara bustard

Explanation The correct way of writing a scientific name of an organism is in italics, with the genus capitalized and the species in lowercase. Therefore, the correct example among the options should be: Houbara bustard.

104. All are characters of enzymes except?

تمام خامروں کے حروف ہیں سوائے؟

Check answer and explanation

Answer: Enzyme activity enhanced by inhibitors

Explanation Inhibitors are molecules that bind to enzymes and decrease their activity, thereby slowing down or preventing the biochemical reaction. Enzyme activity is not enhanced by inhibitors , but rather inhibited.

105. Light dependent reaction takes place in ______?

روشنی پر منحصر ردعمل ______ میں ہوتا ہے؟

Check answer and explanation

Answer: Thylakoid

Explanation The light-dependent reactions (also known as the Hill reaction) occur in the thylakoid membranes of the chloroplast. Thylakoids are specialized membranous structures found in chloroplasts, where light energy is absorbed and converted into ATP and NADPH.

106. Part of earth where life exists is called ______?

زمین کا وہ حصہ جہاں زندگی موجود ہے ______ کہلاتا ہے؟

Check answer and explanation

Answer: Biosphere

Explanation The biosphere is the region of the Earth where life exists , including the land, oceans, and atmosphere. It encompasses all living organisms, from the tiniest microbe to the mightiest tree. Includes the interactions between living things and their environment.

107. Which one of the following are achlorophyllous and absorptive living organism?

مندرجہ ذیل میں سے کون سا آکلوروفیلس اور جذب کرنے والا جاندار ہے؟

Check answer and explanation

Answer: Fungi

Explanation Fungi are achlorophyllous, meaning they lack chlorophyll and are unable to photosynthesize. Instead, they are absorptive living organisms , obtaining their nutrients by breaking down and absorbing organic matter from their surroundings.

108. Plant utilizes simple inorganic molecules (CO2 and H2O) to prepare _____?

پلانٹ _____ کی تیاری کے لیے سادہ غیر نامیاتی مالیکیولز کا استعمال کرتا ہے؟

Check answer and explanation

Answer: Glucose and oxygen

Explanation Plants, algae, and some bacteria use photosynthesis to convert simple inorganic molecules like carbon dioxide (CO2) and water (H2O) into glucose (a type of sugar) and oxygen (O2). This process is essential for life on Earth , as it provides energy and organic compounds for food chains.

109. Root hairs are most important to a plant because they ______?

جڑوں کے بال پودے کے لیے سب سے اہم ہیں کیونکہ وہ ______؟

Check answer and explanation

Answer: Increase the surface area for absorption

Explanation Root hairs are thin, hair-like structures that extend from the roots of plants, increasing the surface area for absorption of water and nutrients from the soil . They play a crucial role in: Absorbing water and minerals Anchoring the plant in the soil Facilitating the uptake of nutrients

110. Resolution of a microscope is defined as the smallest distance between _____ points.

مائکروسکوپ کی ریزولوشن کو _____ پوائنٹس کے درمیان سب سے چھوٹا فاصلہ قرار دیا جاتا ہے۔

Check answer and explanation

Answer: Two

Explanation The resolution of a microscope is defined as the smallest distance between two points that can still be distinguished as separate. The field of view of a microscope is defined as the largest distance between two points that can be observed simultaneously without moving the sample or the microscope.

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