PPSC PAST PAPERS ALL MCQS 2025 OF EVERYDAY SCIENCE
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
A set of Proteins
A set of all proteins in the cell
Protein in Specific Region of the cell
None of these
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Explanation
The term "proteome" refers to the entire set of proteins produced or modified by an organism or system , which can vary based on time, stress, and distinct requirements.
Hydrozoa
Scyphozoa
Anthozoa (Highlighted in red)
Cubozoan
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Explanation
Coral reefs are primarily formed by stony corals (Scleractinia) , which belong to the class Anthozoa of the phylum Cnidaria
Anthozoans include corals and sea anemones, which have a polyp-only life stage and contribute to reef-building through calcium carbonate deposition.
Jurassic period
Triassic Period
Cretaceous period
Devonian period
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Explanation
The first true mammals evolved during the Triassic Period (around 225 million years ago) , emerging from therapsid reptiles.
Sponges
Cnidaria
Flatworm
Nematodes
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Explanation
Mesohyl is a gelatinous, protein-rich layer found in sponges, acting as a connective tissue b etween their inner and outer layers.
اوہیپس ____ کا آباؤ اجداد سمجھا جاتا ہے؟
Elephant
Camel
Horse
None of these
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Explanation
Eohippus , also known as Hyracotherium . It is an early ancestor of the modern horse . It lived around 50-60 million years ago . It had four toes on its front feet and three on its back feet .
انسانی جسم کا کون سا حصہ "ہیپاٹائٹس وائرس" سے زیادہ نقصان کا شکار ہوتا ہے؟
Liver
Spleen
Lungs
Kidneys
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Explanation
The part of the human body more prone to damage from the Hepatitis Virus is the Liver.
Hepatitis is an inflammation of the liver , caused by various hepatitis viruses (A, B, C, etc.).
It can lead to liver damage, cirrhosis, or liver cancer.
مختصرا. _____ انسانی طرز عمل اور انسانی تعلقات کا مطالعہ ہے۔
Research
Psychology
Physical activity
None of these
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Explanation
Psychology is the scientific study of human behavior, emotions, and cognitive processes. It also examines human relationships and social interactions to understand mental and emotional well-being.
کوئلے کی گیس بنیادی طور پر ______ پر مشتمل ہے؟
Hydrogen and oxygen
Methane and hydrogen
Ethane and hydrogen
None of these
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Explanation
Coal gas primarily consists of methane (CH₄) and hydrogen (H₂) , along with small amounts of other gases. It is produced during the destructive distillation of coal , where methane and hydrogen are key components.
خون کی بیماری کی ایک قسم جو تابکاری کی وجہ سے ہوتی ہے جیسے ایکس رے اور گاما کرنوں کی وجہ سے ہے؟
Malaria
Leukemia
Hepatitis
None of these
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Explanation
Leukemia is a blood cancer caused by mutations in blood-forming cells . It often triggered by radiation exposure . X-rays and gamma rays can damage DNA in bone marrow. This leading to uncontrolled white blood cell production.
موبائل فون پیغامات بھیجنے اور وصول کرنے کے لیے کس چیز کے ذریعے کام کرتا ہے؟
Sound waves
Microwaves
U/V waves
Radio waves
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Explanation
Mobile phones communicate using radio waves.
These waves are a type of electromagnetic radiation.
Signals are sent to and received from cell towers (base stations).
