EVERYDAY SCIENCE
Download PDF Click here
فری تیاری کیلے Whatsappجوائن کریںClick
here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
انسانی نظامِ تنفس، جس میں پھیپھڑے، ٹریکیا اور برونکائی شامل ہیں، کون سا عمل انجام دیتا ہے؟
- Gas exchange
- Exhalation
- Inspiration
- All of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- The respiratory system performs inspiration (inhalation), expiration (exhalation), and gas exchange.
- Inspiration is the process of taking air into the lungs.
- Expiration is the process of removing air from the lungs.
- Gas exchange occurs in the alveoli, where oxygen enters the blood and carbon dioxide leaves it.
- The trachea carries air, while the bronchi transport air into the lungs.
Last verified on 31-10-2026
ایڈرینل غدود سے ہارمونز کی ناکافی پیداوار کس بیماری کا سبب بنتی ہے؟
- Addison's disease
- Cushing's syndrome
- Diabetes Mellitus
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Addison's disease occurs when the adrenal glands produce insufficient amounts of hormones, particularly cortisol and often aldosterone.
- The condition is also called adrenal insufficiency.
- Common symptoms include fatigue, weight loss, low blood pressure, and skin darkening.
Last verified on 31-10-2026
رائبو نیوکلیک ایسڈ میں تھائمین کی جگہ کون سی بیس آتی ہے؟
- Adenine
- Guanine
- Uracil
- Cytosine
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- In RNA, the nitrogenous base uracil (U) replaces thymine (T).
- This change means RNA contains the bases adenine (A), cytosine (C), guanine (G), and uracil (U).
- DNA contains adenine (A), thymine (T), cytosine (C), and guanine (G).
Last verified on 31-10-2026
ضیائی تالیف کے عمل میں خارج ہونے والی آکسیجن کا ذریعہ کیا ہے؟
- Water
- Salt
- Mineral
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- During photosynthesis, water molecules are split in the light-dependent reactions. This process is called photolysis.
- The oxygen released into the atmosphere comes from water (H₂O).
- The splitting of water also provides electrons and hydrogen ions needed for photosynthesis.
Last verified on 31-10-2026
ایچ آئی وی کے بارے میں درج ذیل میں سے کون سا بیان غلط ہے؟
- It does not cause AIDS
- It's a retrovirus
- It's surrounded by an envelop
- It cause deficiency of human
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- HIV (Human Immunodeficiency Virus) causes AIDS (Acquired Immunodeficiency Syndrome).
- HIV is an enveloped retrovirus that attacks CD4 T-helper cells.
- It weakens the immune system, making the body more vulnerable to infections.
Last verified on 31-10-2026
- Serine
- Glucose
- Alanine
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Alanine is an α-amino acid with the molecular formula C₃H₇NO₂.
- It contains an amino group (–NH₂), a carboxyl group (–COOH), and a methyl group (–CH₃).
- Alanine is one of the 20 standard amino acids used to build proteins.
Last verified on 31-10-2026
خون کے گروپ او والا شخص کن بلڈ گروپس کو خون عطیہ کر سکتا ہے؟
- A and O
- A, B, AB, O
- AB only
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- O-negative (O−) red blood cells can generally be donated to all ABO and Rh blood groups, making O− the universal red-cell donor.
- O-positive (O+) red blood cells can be donated to O+, A+, B+, and AB+ recipients.
Last verified on 30-10-2026
خصیوں کے اندر سپرم کس حصے میں پیدا ہوتے ہیں؟
- Collecting Duct
- Seminiferous tubules
- Sperm Duct
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Seminiferous tubules are tiny, highly coiled tubes inside the testes where sperm are produced through a process called spermatogenesis.
- The testes also produce testosterone, the primary male sex hormone.
- After production, sperm mature further in the epididymis, where they are stored temporarily.
Last verified on 30-10-2026
مدافعتی نظام کے افعال اور اس کی خرابیوں کے مطالعے کو کیا کہتے ہیں؟
- Immunology
- Immunity
- Immune response
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Immunology is the branch of biology and medicine that studies the immune system, its functions, and its disorders.
- Immunity is the body's ability to resist infections and harmful substances.
Last verified on 30-10-2026
- Aspirin
- Resorcinol
- Picric acid
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Picric acid is the common name for 2,4,6-trinitrophenol.
- It contains one hydroxyl group (–OH) and three nitro groups (–NO₂) at positions 2, 4, and 6.
- Its molecular formula is C₆H₃N₃O₇.
Last verified on 30-10-2026
