10-sinf Biologiya olimpiada №3 Oktabr 24, 2022Oktabr 24, 2022 da chop etilgan InfoMaster tomonidan 10-sinf Biologiya olimpiada №3 ga 6 fikr bildirilgan 0 123456789101112131415161718192021222324 10-sinf Biologiya olimpiada №3 2022-yil 13-oktabr: 2022-2023 o'quv yili tuman bosqichida tushgan savollar! 1 / 24 1. Qaysi javobda olma (a) va qulupnay (b)ning o‘zaro farqi to‘g‘ri berilgan? 1) ra’noguldoshlar oilasiga mansub; 2) bargi oddiy; 3) bargi murakkab; 4) yonbargchali; 5) yonbargchasiz; 6) soxta mevali; 7) chin mevali A) a-2; b-3 B) a-1, 4, 6; b-2, 5, 7 C) a-7; b-6 D) a-1, 4; b-3, 5 2 / 24 2. Diploid navli makkajo‘xori changdonida dastlabki jinsiy hujayralar soni 1260 ta. Bu hujayralar meyoz va mitoz usulda bo‘lindi. Urug‘lanish jarayonida makkajo‘xori spermiylarining 40%i qatnashgan bo‘lsa, urug‘lanish jarayonida qatnashmagan spermiylardagi xromosomalar sonini aniqlang. A) 60512 B) 70580 C) 80280 D) 60480 3 / 24 3. Markaziy nerv sistemasida faqat miyachasida burmalari bo‘lgan hayvonlarni aniqlang. 1) qizilquyruq; 2) malla revun; 3) laylak; 4) kakku;5) gornostay; 6) kaptar; 7) Grenlandiya tyuleni A) 2, 5, 6 B) 1, 3, 4, 6 C) 2, 5, 7 D) 1, 2, 7 4 / 24 4. Juft (a) va toq (b) ayirish organlariga ega bo‘lgan organizmlarni ko‘rsating. 1) letyaga; 2) kalmar; 3) ay-ay; 4) kanna; 5) bitiniya; 6) tridakna; 7) dafniya; 8) nereida; 9) dreysena; 10) perlovitsa; 11) semga. A) )a-1, 3, 7, 8; b-2,4, 5, 6, 9, 10, 11 B) a-1, 3,4,7,8, 11; b-2, 5, 6,9, 10 C) a-1,4, 7, 8,11; b-2, 3, 5, 6, 9, 11 D) a-1, 3, 4,7,8; b-2, 5, 6, 9,10, 11 5 / 24 5. Oshqovoq mevasining og`irligi ikki juft kumulativ polimer genlar ta`sirida irsiylanadi. Agar 2 juft dominat gendan iborat bo`lsa 4kg, agar 2 juft retsissev gendan iborat bo`lsa 1,2kg bo`lsa, A1a1A2a2 va A1a1A2a2 chatishtirilganda olingan o`simliklar orasida ajralish ro`y beradigan mevasi eng yengil o`simliklar sonini aniqlang. A) 8 B) 6 C) 4 D) 2 6 / 24 6. Tajriba maydonida seleksioner olim g‘o‘za o‘simligining tolalari oq va malla rangli xillarini chatishtirdi. F2 duragaylari 2192 tani tashkil qildi. Ular orasidan 548 tasi malla, 1104 tasi novvot rang, 540 tasi oq rangda bo‘ldi. Ushbu tajribada olingan novvot rangli duragaylarning nazariy jihatdan olinishi kerak bo‘lgan novvot rangli duragaylardan farqini toping. A) 4 ta kam B) 4 ta ko‘p C) 8 ta kam D) 8 ta ko‘p 7 / 24 7. Gastrula jarayoni blastula devorining qat-qat joylashuv yo‘li bilan amalga oshadigan sovuqqonli organizmlarni aniqlang. 1) iguana; 2) kivi qushi; 3) alligator; 4) tustovuq; 5) lira qushi; 6) emu; 7) nandu; 8) xameleon. A) 4, 6 B) 5, 7 C) 1, 8 D) 2, 3 8 / 24 8. Glukoza sintezlanishi (a) va oksidlanishi (b) bilan bog‘liq jarayonlarni aniqlang. 1) CO2 sarflanadi; 2) CO2 hosil bo‘ladi; 3) ATF energiyasi sarflanadi; 4) O2 sarflanadi; 5) ATF sintezlanadi; 6) O2 hosil bo‘ladi; 7) fotoliz jarayoni sodir bo‘ladi A) a – 1, 3, 6; b – 2, 4, 5 B) a – 1, 5, 6; b – 2, 3, 4 C) a – 2, 3, 7; b – 1, 6, 7 D) a – 2, 4, 5; b – 1, 3, 6, 7 9 / 24 9. Yeryong‘oq va yerbag‘ir tugmachagulga tegishli umumiy tushunchalarni aniqlang. 1) murakkab barg; 2) hujayra devoriga ega; 3) quruq meva; 4) qiyshiq gul; 5) fitosenoz vakili; 6) murakkab gulqo‘rg‘on A) 1, 5, 6 B) 3, 4, 6 C) 2, 3, 5 D) 1, 2, 4 10 / 24 10. Ko‘sak mevaga ega bo‘lgan oddiy gulqo‘rg‘onli o‘simliklarni aniqlang. 1) oqquray; 2) chuchmoma; 3) boychechak; 4) lola; 5) bangidevona; 6) g‘o‘za. A) 1, 3 B) 2, 3 C) 2, 6 D) 5, 6 11 / 24 11. Qanday jarayonda quyidagi reaksiya amalga oshadi? ATF + H2O → ADF + H3PO4 + energiya (40 kJ) A) bir molekula glukozadan 2 molekula sut kislotasi hosil bo‘lishi B) kislorodli sharoitda sut kislotasining to‘liq parchalanishi C) membrana orqali moddalarning aktiv transporti D) fotosintez jarayonining yorug‘lik bosqichi 12 / 24 12. Odam organizmidagi timozin garmoniga xos bo‘lgan xususiyatlarni aniqlang? a) organizmda pigment almashinuvni boshqaradi; b) jinsiy bezlarni funksiyasini pasaytiradi; c) limfosit hosil bo‘lishini kuchaytiradi va immunitetni oshiradi; d) qon tomirlarini toraytirib, qon bosimini oshiradi; organizmda kalsiy-fosfor almashinuvini boshqaradi; f) bolalar o‘sishiga ijobiy ta’sir ko‘rsatadi. A) a, d, e B) b, c, f C) a, b, f D) d, e, c 13 / 24 13. Qaysi javobda vabo kasalligi qo‘zg‘atuvchisiga xos xususiyat keltirilgan? A) organik moddalarni anorganik moddalardan sintez qiladi B) DNK si gistonli oqsillar bilan kompleks hosil qiladi C) transkripsiya jarayoni sitoplazmada amalga oshadi D) mitoxondriyalarida ATF sintezlanadi 14 / 24 14. Himoya funksiyasini bajaruvchi oqsilni aniqlang. A) kollagen B) polimeraza C) amilaza D) antitana 15 / 24 15. Quyidagi organizmlarga tegishli to‘g‘ri ta’riflarni juftlang. a)parmeliya; b) batsidiya A) a - fototrof organizm; b - prokariot organizm B) a - eukariot organizm; b - yopishqoq lishaynik C) a - prokariot organizm; b - fototrof organizm D) a - eukariot organizm; b - bargsimon lishaynik 16 / 24 16. Sariq silliq donli (AaBb) no‘xatlarda tahliliy chatishtirish o‘tkazilganda qanday natijalar olinadi? 1) har ikki belgi bo‘yicha dominant genga ega organizmlar 50%ni tashkil qiladi; 2) fenotip bo‘yicha nisbat 1:1:1:1 bo‘ladi; 3) organizmlarning 1/4 qismi ikkinchi belgi bo‘yicha retsessiv gomozigota bo‘ladi; 4) genotip bo‘yicha ota-onaga o‘xshash organizmlar 50%ni tashkil qiladi; 5) dominant digomozigota organizm hosil bo‘ladi A) 1, 2 B) 2, 4 C) 2, 3 D) 3, 5 17 / 24 17. Qaysi javobda sershox qirqbo‘g‘imning jinssiz bo‘g‘iniga xos xususiyatlar keltirilgan? A) spermatozoid hosil qiladi, gametofit hisobiga oziqlanadi B) mustaqil oziqlanadi, zigota hosil qiladi C) fotosintez qiluvchi ildizpoyali o‘simlik D) tuxum hujayra hosil qiladi, poya-bargli o‘simlik 18 / 24 18. Qaysi javobda aminokislotalar berilgan? A) tirozin, mum B) prolin, tirozin C) triptofan, uratsil D) fenilalanin, guanin 19 / 24 19. Autotrof oziqlanish xususiyatiga ega prokariot (a) va eukariot (b) organizmlarni aniqlang. 1) ossillatoriya; 2) oltingugurt bakteriyasi; 3) pichan bakteriyasi; 4) uchqat; 5) nitella; 6) volvoks; 7) midiya; 8) floks; 9) perlovitsa A) a-3; b-7, 9 B) a-1, 2, 5; b-4, 8 C) a-2; b-5, 8 D) a-2, 3; b-6, 7, 8 20 / 24 20. Maltoza va saxarozaning umumiy xususiyatlarini ko‘rsating. 1) glikozid bog‘larga ega; 2) tarkibiga fruktoza kiradi; 3) suvda yaxshi eriydi; 4) qand lavlagi shakari hisoblanadi A) 2, 4 B) 1, 3 C) 1, 4 D) 2, 3 21 / 24 21. Shimpanze somatik hujayrasi mitoz siklining G2 davridagi DNK (a), xromosoma (b), hujayra markazi (c) va sentriolalar (d) sonini aniqlang. A) a-96; b-48; c-1; d-2 B) a-48; b-48; c-1; d-2 C) a-96; b-48; c-2; d-4 D) a-96; b-96; c-2; d-2 22 / 24 22. Bevosita rivojlanadigan germafrodit organizmlarni (a) va bilvosita rivojlanadigan ayrim jinsli organizmlarni (b) ko‘rsating. 1) korall aspidi; 2) gelikonius; 3) chuchuk suv shillig‘i; 4) qizil chuvalchang; 5) aureliya; 6) perlovitsa; 7) povituxa; 8) nematoda A) a-1, 4; b-2, 6 B) a-2, 6; b-3, 5 C) a-4, 7; b-1, 8 D) a-3, 4; b-7, 8 23 / 24 23. Oddiy amyoba (a), nursimonlar (b), yashil evglena (c), tufelka (d) uchun xos bo‘lgan xususiyatlarni aniqlang. 1) bakteriyalar, mayda suv o‘tlari va organik qoldiqlar bilan oziqlanadi; 2) xromatoforidagi xlorofill pigmenti yordamida fotosintez qiladi; 3) qisqaruvchi vakuolaga ega; 4) kremniy skeletli; 5) hazm qilish va ayirish organoidlari nisbatan murakkab tuzilgan A) a-2; b-4, 5; c-1, 2; d-3 B) a-4; b-1, 5; c-1, 3; d-2 C) a-1, 2; b-4; c-5; d-3 D) a-3; b-4; c-2; d-5 24 / 24 24. Quyidagi organizmlarning diploid hujayrasida 2 va 5-juft gomologik xromosmolarining har biri bittaga kamaysa, ular kariotipida nechta xromosoma bo‘ladi? a) makkajo‘xori; b) suvarak; c) qalampir A) a-22; b-50; c-50 B) a-16; b-50; c-50 C) a-20; b-44; c-44 D) a-18; b-46; c-46 0% Testni qayta ishga tushiring Author: InfoMaster Biologiya olimpiada
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