1-&kirish. Tirik organizmlarning o’ziga xos xususiyatlari oddiy test I qism

24-25-26-27-28 mavzular asosida tuzilgan test savollari. Tuzgan O’qituvchi Boltayeva Q.A. ([phone])


1.Hujayradagi organic moddalar ichida miqdor va ahamiyati jihatidan birinchi o’rinni egallaydigan moddani belgilang.
A)uglevodlar B)oqsillar C)yog’lar D)nuklein kislotalar


2.Yuqori molekulali kolloid birikma(a), quyi molekulali organic karbon kislotalarning (b) hosilasini belgilang
A)a-uglevod; b-glukoza B)a-oqsil; b-saxaroza
C)a-nuklein kislota; b-nukleotid D)a-oqsil; b-aminokislota


3.Oqsillarning elementar tarkibini belgilang. 1)C; 2)H₂; 3)O₂; 4)N; 5)S; a)50-54%; b)16%; v)6,5-7,3%; g)21-23%; d)0,5%
A)a-1; b-4; v-2; g-3; d-5 B)a-1; b-2; v-3; g-4; d-5
C)a-4; b-2; g-1; d-3; v-5 D)a-2; b-4; v-1; g-3; d-5


4.ATF ga tegishli ma’lumotlar berilmagan javobni toping.
1) nukleotidlarga kiradi, 2) nukleotid emas, 3)tarkibi adenin, dezoksiriboza va fosfat kislota qoldig’idan iborat, 4) tarkibi adenin, riboza va fosfat kislota qoldig’idan iborat, 5)hujayraning kichik bir qismida katta energiya to’plamaydi, 6) barcha hujayra funksiyasi uchun energiya manbai,
A) 3, 5, 1 B) 2, 5, 3 C) 2, 6, 3 D)1, 4, 6


5.Quyidagi biopolimerlarni ularning vazifalari bilan moslang.
1)sellyuloza, 2) DNK, 3)amilaza, 4)xitin, 5)RNK, 6)pepsin, 7)karbogidaraza,
a) qurilish, b) katalizator, c) axborot saqlash
A) a – 7, 3; b – 1, 4, 6; c – 2, 5 B) a – 4, 1; b – 7, 3, 6; c – 2, 5
C) c – 4, 1; a – 7, 3, 6; b – 2, 5 D) a – 4, 1; c – 7, 3, 6; b – 2, 5


6.Qaysi javobda albumin (a), globulin (b), xromoprotein (c) oqsillarga mos ta’riflar berilgan.
1) rangli murakkab oqsil, 2) rangli oddiy oqsil, 3) toza distillangan suvda eriydigan oddiy oqsil, 4) kuchsiz osh tuzi eritmasida eriydigan oddiy oqsil, 5) oqsil va nuklein kislotalarning birikishidan hosil bo’lgan murakkab oqsil.
A) a – 2, b – 3, c – 4 B) a – 3, b – 5, c – 1
C) a – 1, b – 5, c – 3 D) a – 3, b – 4, c – 1


7. DNK fragmentida 840 ta vodorod bog’lari bo’lsa, qo’shbog’ bilan bog’langan nukleotidlar C dan 168taga ko’pligi ma’lum bo’lsa, ushbu DNK fragmentining uzunligi (a), undan sintezlangan oqsil massasi (b), undan sintzlangan oqsildagi aminokislotalar soni (d) va undan sintezlangan RNK dagi fosfodiefir bog’lar (c) sonini toping. (Nukleotidlar o’rasi 0,34nm)
A) a – 114,24nm; b – 13440; d – 335; c – 112
B) a – 114,24nm; b – 13440; c – 335; d – 112
C) a – 228,48nm; b – 26880; c – 670; d – 224
D) a – 228,48nm; b – 26880; d – 670; c – 224


8. Biopolimerlarning birinchi(a), ikkinchi (b) va uchinchi (c) guruhiga kiradigan molekulalarni toping.
1)sellyuloza, 2)kraxmal, 3)tripsin, 4)xitin, 5)DNK, 6)enterokinaza, 7)nukleoprotein, 8)glikolipid, 9)trioza.
A) a – 4,1; b – 3,6; c – 5,7 B) a – 2,9; b – 8,6; c – 5,1
C) a – 1,4; b – 5,7; c – 3,6 D) b – 4,1; a – 3,6; c – 5,7


9.Siklik (b) va asiklik (a) aminokislotalarni juftlang.
1) glitsin, 2) izoleysin, 3) sistein, 4) gistidin, 5)prolin, 6)metionin, 7) tirozin, 8) glutamin kislota
A) a – 2, 1, 6, 3, 8; b – 7, 4, 5 B) a – 2, 1, 6, 4, 8; b – 7, 3, 5
C) b – 2, 1, 6, 3, 8; a – 7, 4, 5 D) a – 2, 1, 6, 3, 7; b – 8, 4, 5


10.Oqsillarning birlamchi(a), ikkilamchi(b), uchlamchi(c) va to’rtlamchi(d) tuzilishiga xos belgilarni toping. 1) gemoglobinga xos, 2) mioglobinga xos, 3)keratin misol bo’ladi, 4) kollagen misol bo’ladi, 5) NH-guruhlari bilan qo‘shni o‘ramdagi CO-guruhi o‘rtasida vodorod bog‘lari hosil bo‘ladi, 6) tuzilishini gidrofob bog’lar saqlab turadi, 7) aminokislota radikallari spiral tashqarisida qoladi, 8) assotsatsiya yoki dissotsatsiya bo’lib turadi, 9) polipeptid zanjirko’rishida bo’ladi.