10-sinf Biologiya olimpiada №1 Dekabr 7, 2021Avgust 19, 2024 da chop etilgan InfoMaster tomonidan 10-sinf Biologiya olimpiada №1 ga 10 fikr bildirilgan 8 12345678910111213141516171819202122232425 Tomonidan yaratilgan InfoMaster 10-sinf Biologiya olimpiada №1 2021-yil tuman bosqichida tushgan savollar. 1 / 25 1. Sog‘lom odam umurtqa pog‘onasining kifozida (orqa tomonga egilma) nechta umurtqa suyaklari qatnashadi? A) 5 B) 17 C) 7 D) 12 2 / 25 2. Qand lavlagi, karam va beda o‘simliklarining vatanini aniqlang. A) O‘rta Yer dengizi B) Sharqiy Osiyo C) Janubiy-G‘arbiy Osiyo D) Janubiy Osiyo tropik markazi 3 / 25 3. Ituzumdoshlar oilasi vakillarining burchoqdoshlar oilasi vakillaridan farqlarini toping. 1) gultojbarglari qo‘shilgan; 2) gullari gajak to‘pgulda joylashgan; 3) gulkosachabarglari 5 ta, qo‘shilgan; 4) gultojbarglari 3 xil; 5) daraxt formalar uchraydi; 6) bitta umumiy gulbandida bir nechta gul joylashadi; 7) changchilari gultojbarglarning qo‘shilishidan hosil bo‘lgan nay ichida joylashgan A) 4, 5 B) 2, 7 C) 3, 6, 7 D) 1, 3, 6 4 / 25 4. Osh piyoz o‘simligi qaysi bo‘lim va turkumga tegishli ekanligini aniqlang (mos ravishda). A) bir urug‘pallalilar, lola B) magnoliyatoifa, piyoz C) magnoliyasimon, piyoz D) lolasimon, bosh piyoz 5 / 25 5. Treska uchun xos xususiyatlarni belgilang. 1) yurak qorinchasida venoz qon oqadi; 2) bir necha million tuxum qo‘yadi; 3) yon chiziqlari bor; 4) ayirish sistemasiga tasmasimon buyrak kiradi; 5) orqa ichak kengayib, kloaka hosil qiladi; 6) to‘sh suyagi yo‘q; 7) qovurg‘alari bo‘lmaydi; 8) urug‘lanishi tashqi; 9) tuxumlarini orqasida opichlab olib yuradi. A) 3, 4, 5, 8 B) 1, 3, 5, 9 C) 1, 2, 6, 8 D) 3, 7, 8, 9 6 / 25 6. Yog‘larni parchalovchi fermentni aniqlang? A) Proteaza B) Lipaza C) Amilaza D) Karbogidraza 7 / 25 7. Quyidagilarning qaysi birida odamning kichik qon aylanish doirasida qon harakati yo‘nalishi to‘g‘ri ko‘rsatilgan? 1) chap qorinchadan arteriyaga; 2) o‘pka arteriyasidan o‘ng bo‘lmachaga; 3) kovak venadan o‘ng bo‘lmachaga; 4) o‘pka venasidan chap bo‘lmachaga; 5) o‘ng qorinchadan arteriyaga; 6) o‘pka venasidan o‘pkaga A) 1, 3 B) 2, 6 C) 2, 5 D) 4, 5 8 / 25 8. 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-1, 4; b-3, 5 B) a-7; b-6 C) a-1, 4, 6; b-2, 5, 7 D) a-2; b-3 9 / 25 9. Korall poliplar nimalardan kelib chiqqan? A) meduzalardan B) yassi chuvalchanglardan C) gidrasimonlardan D) bir xujayrali xivchinlilardan 10 / 25 10. Qaysi o‘zbek olimi achitqi zamburug‘larini o‘rganib, novvoychilik, chorvochilikda achitqilar tayyorlash tenologiyasini yaratgan A) B.Abdug'afurov B) V.Qobilov C) M.Mavloniy D) A.Aliqoriyeva 11 / 25 11. Asosan o‘simlik mahsulotlarida uchraydigan vitaminni belgilang. A) C B) D C) B D) A 12 / 25 12. Xordali hayvonlarda quyidagi evolyutsion yuksalishlarning paydo bo‘lish ketma – ketligini to‘g‘ri va to‘liq tartibda yozing. 1) miya qutisining paydo bo‘lishi; 2) diafragmaning paydo bo‘lishi; 3) nerv nayining paydo bo‘lishi; 4) katta va kichik qon aylanish sistemasining paydo bo‘lishi; 5) uchinchi qovoqning paydo bo‘lishi A) 2, 3, 1, 4, 5 B) 1, 4, 5, 2, 3 C) 5, 2, 3, 1, 4 D) 3, 1, 4, 5, 2 13 / 25 13. 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) 80280 C) 60480 D) 70580 14 / 25 14. Daltonizm, ya’ni rang ajrata olmaslik retsessiv holda irsiylanadi. Agar erkak daltonizm bilan kasal bo‘lsa, spermatogenez jarayonida bitta birlamchi jinsiy hujayradan hosil bo‘lgan spermatozoidlarning nechtasi shu retsessiv genga ega bo‘lmaydi? A) 4 ta B) 1 ta C) 3 ta D) 2 ta 15 / 25 15. Lansetnik embrionidagi blastomerlar 64 taga yetishi uchun hujayralar necha marta meridianal va ekvatorial bo‘linishi kerak? A) 5 va 3 B) 4 va 2 C) 2 va 1 D) 4 va 3 16 / 25 16. DNK fragmenti tarkibida jami 960 ta vodorod bog‘i mavjud. Adenin va timin orasidagi vodorod bog‘lar soni guanin va sitozin orasidagi vodorod bog‘lari soniga nisbati mos ravishda 1:1,5. Agar shu DNK tarkibidagi nukleotidlarning 25%i mutatsiyaga uchrab yo‘qolsa, DNK tarkibidagi mutatsiyadan keyingi nukleotidlar sonini nechtaga kamaygan? A) 125 B) 196 C) 192 D) 210 17 / 25 17. Qaysi o‘simliklarning bargi oddiy yonbargchasiz (a) va murakkab yonbargchali (b) bo‘ladi? 1) ismaloq; 2) yantoq; 3) keyreuk; 4) tok; 5) partenotsissus; 6) kanop; 7) no‘xat; 8) yeryong‘oq A) a – 1, 2, 3; b – 7, 8 B) a – 2, 3, 4; b – 5, 7, 8 C) a – 4, 6; b – 5, 8 D) a – 1, 3; b – 5, 7, 8 18 / 25 18. Sersut qoramol zotlarini belgilang. A) Bushuyev, Yaroslavl B) Kostroma, Bushuyev C) Qozog‘iston oqboshi, Xolmogor D) Qizil dasht, Shvits 19 / 25 19. Sholg‘om o‘simligi hayotining ikkinchi yilida qaysi vegetativ organlarni hosil qiladi? A) gul, meva, urug‘ B) ildiz, barg, gul C) to‘pbarg, ildizpoya D) poya, barg 20 / 25 20. Bug‘doy donining rangi 2 ta noallel gen (A1 va A2) ta’sirida rivojlanadi. Qizil va oq rangli bug‘doylar o‘zaro chatishtirilsa, F2 da hosil bo‘lgan och qizil (a) va och pushti bug‘doylar (b) necha xil genotipga ega bo‘ladi? A) a-2; b-2 B) a-2; b-3 C) a-3; b-4 D) a-3; b-3 21 / 25 21. Go‘shti uchun ovlanadigan molluska (a) va qisqichbaqasimon (b) larni aniqlang. A) a-osminog, kalmar, karakatitsa; b-bitiniya, tridakna, dresera B) a-ustiritsa, krab, osminog; b-kalmar, karakatitsa, krevetka C) a-ustiritsa, midiya, taroqcha; b-omar, langust, krevetka D) a-midiya, taroqcha, langust; b-mangust, krevetka, krab 22 / 25 22. Bir sinfga mansub o‘simliklar navlarini aniqlang. A) Zarafshon, Buxoro-9, Sanzor B) Vatan, Sanzor, Omad C) Yulduz, Toshkent-1, Ulug‘bek-600 D) Zarg‘aldoq, Nimrang, Samarqand-3 23 / 25 23. Shimpanze somatik hujayrasi mitoz siklining G2 davrida yardo tarkibidagi DNK (a) va xromosoma (b) sonini aniqlang. A) a-76; b-41 B) a-48; b-96 C) a-108; b-48 D) a-96; b-48 24 / 25 24. Quyida ovqat hazm qilish sistemasi og‘iz teshigi, halqum, qizilo‘ngach, ikki bo‘lmali oshqozon, ichak, jigar va anal teshigidan iborat bo‘lgan nechta hayvon turi berilgan. 1) midiya; 2) bitiniya; 3) krab; 4) tridakna; 5) omar; 6) krevetka; 7) dreysena; 8) langust A) 1 tur B) 3 tur C) 5 tur D) 2 tur 25 / 25 25. G‘alla navini aniqlang. A) gultish B) nimrang C) zarg‘aldoq D) sanzor 0% Testni qayta ishga tushiring Baholash mezoni 86%-100% 5 baho 71%-85% 4 baho 56%-70% 3 baho 55% va kamiga 2 baho Fikr-mulohaza yuboring tomonidan Wordpress Quiz plugin Biologiya olimpiada, Tuman 2021-2022 o'quv yili
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