{"questions":[{"id":"matric-bio9-cell-01","v":1,"subject":"biology-9","chapter":"cells-and-tissues","seed":true,"difficulty":1,"stem":"The cell theory was put forward by:","options":["Schleiden and Schwann","Robert Hooke and Newton","Darwin and Wallace","Mendel and Morgan"],"answer":0,"explain":{"en":"Matthias Schleiden (plants, 1838) and Theodor Schwann (animals, 1839) proposed that all living things are made of cells. Rudolf Virchow later added that new cells come only from existing cells.","ur":"شلائیڈن (پودے، 1838) اور شوان (جانور، 1839) نے کہا کہ تمام جاندار خلیوں سے بنے ہیں۔ بعد میں ورخو نے اضافہ کیا کہ نیا خلیہ صرف پہلے سے موجود خلیے سے بنتا ہے۔"},"source":{"kind":"parcha-original"},"status":"sample","exam":"matric"},{"id":"matric-bio9-cell-02","v":1,"subject":"biology-9","chapter":"cells-and-tissues","difficulty":1,"stem":"Which plant tissue carries water and minerals from the roots to the leaves?","options":["Phloem","Epidermis","Xylem","Cork"],"answer":2,"explain":{"en":"Xylem carries water and dissolved minerals upwards from the roots. Phloem carries food (sugars) made in the leaves to other parts of the plant.","ur":"زائلم پانی اور معدنیات جڑوں سے اوپر لے جاتا ہے۔ فلوئم پتوں میں بنی خوراک (شکر) پودے کے دوسرے حصوں تک پہنچاتا ہے۔"},"source":{"kind":"parcha-original"},"status":"sample","exam":"matric"},{"id":"matric-bio9-cell-03","v":1,"subject":"biology-9","chapter":"cells-and-tissues","difficulty":1,"stem":"Phloem tissue transports:","options":["Water only","Food made in the leaves","Oxygen","Minerals from the soil"],"answer":1,"explain":{"en":"Phloem carries dissolved food, mainly sucrose, from the leaves to growing parts and storage organs (translocation). Water and minerals move in the xylem.","ur":"فلوئم پتوں سے حل شدہ خوراک (زیادہ تر سکروز) بڑھتے حصوں اور ذخیرہ کرنے والے اعضا تک لے جاتا ہے۔ پانی اور معدنیات زائلم میں چلتے ہیں۔"},"source":{"kind":"parcha-original"},"status":"sample","exam":"matric"},{"id":"matric-bio9-cell-04","v":1,"subject":"biology-9","chapter":"cells-and-tissues","difficulty":1,"stem":"Which animal tissue covers the body surface and lines its cavities?","options":["Muscle tissue","Nervous tissue","Connective tissue","Epithelial tissue"],"answer":3,"explain":{"en":"Epithelial tissue forms the skin's outer layer and lines organs such as the stomach and intestines, protecting them and controlling absorption and secretion.","ur":"اپی تھیلیل ٹشو جلد کی بیرونی تہہ بناتا ہے اور معدے اور آنتوں جیسے اعضا کی اندرونی تہہ بھی؛ یہ حفاظت، جذب اور اخراج کا کام کرتا ہے۔"},"source":{"kind":"parcha-original"},"status":"sample","exam":"matric"},{"id":"matric-bio9-cell-05","v":1,"subject":"biology-9","chapter":"cells-and-tissues","difficulty":2,"stem":"Meristematic tissue in plants consists of cells that:","options":["Store food only","Are dead and hollow","Keep dividing to produce new cells","Carry water"],"answer":2,"explain":{"en":"Meristems, found at root and shoot tips (apical) and in stems (lateral), are made of small cells that keep dividing, so the plant can grow in length and girth.","ur":"میرسٹم، جو جڑ اور تنے کے سروں اور تنے میں ہوتے ہیں، چھوٹے خلیوں سے بنتے ہیں جو مسلسل تقسیم ہوتے ہیں، اس لیے پودا لمبائی اور موٹائی میں بڑھتا ہے۔"},"source":{"kind":"parcha-original"},"status":"sample","exam":"matric"},{"id":"matric-bio9-cell-06","v":1,"subject":"biology-9","chapter":"cells-and-tissues","difficulty":2,"stem":"Blood is classified as which type of tissue?","options":["Connective tissue","Epithelial tissue","Muscle tissue","Nervous tissue"],"answer":0,"explain":{"en":"Blood is a fluid connective tissue: its cells float in a liquid matrix (plasma). It connects body parts by carrying oxygen, food, wastes and hormones.","ur":"خون مائع کنیکٹو ٹشو ہے: اس کے خلیے ایک مائع (پلازما) میں تیرتے ہیں۔ یہ آکسیجن، خوراک، فضلہ اور ہارمون لے جا کر جسم کے حصوں کو جوڑتا ہے۔"},"source":{"kind":"parcha-original"},"status":"sample","exam":"matric"},{"id":"matric-bio9-cell-07","v":1,"subject":"biology-9","chapter":"cells-and-tissues","difficulty":1,"stem":"The size of most cells is measured in:","options":["Centimetres","Kilometres","Micrometres","Metres"],"answer":2,"explain":{"en":"Most cells are between about 1 and 100 micrometres (1 μm = 10⁻⁶ m) across, too small to see without a microscope.","ur":"زیادہ تر خلیے تقریباً 1 سے 100 مائیکرومیٹر (1 μm = 10⁻⁶ m) کے ہوتے ہیں، جو خوردبین کے بغیر نظر نہیں آتے۔"},"source":{"kind":"parcha-original"},"status":"sample","exam":"matric"},{"id":"matric-bio9-cell-08","v":1,"subject":"biology-9","chapter":"cells-and-tissues","difficulty":1,"stem":"The cell wall of a plant cell is mainly made of:","options":["Protein","Chitin","Lipids","Cellulose"],"answer":3,"explain":{"en":"Plant cell walls are made mainly of cellulose fibres, which give the cell shape and strength. Fungal walls contain chitin instead.","ur":"پودوں کی خلوی دیوار زیادہ تر سیلولوز کے ریشوں سے بنتی ہے جو خلیے کو شکل اور مضبوطی دیتے ہیں۔ فنجائی کی دیوار میں کائٹن ہوتا ہے۔"},"source":{"kind":"parcha-original"},"status":"sample","exam":"matric"}]}