8 – sinf mavzulashgan testlar 1-Mavzu «Inson uchun birinchi baxt uning soglig‘i, ikkinchisi go‘zallikdir»


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8 Biologiya 8-sinf mavzulashgan test

A) ateroskleroz B) infarkt C) gipertoniya D) insult
86. Bosh miyaga qon quyilishi qanday ataladi?
A) ateroskleroz B) infarkt C) gipertoniya D) insult
87. Yurak muskullarida qon aylanishning buzilishi tufayli sodir bo‘ladigan kasallik...
A) ateroskleroz B) ishemik C) insult D) miozit
88.Tamaki tarkibidagi qanday moddalar yurak-qon tomir sistemasiga zaharli ta'sir ko'rsatadi?1) nikotin; 2) karbonat angidrid; 3) radioaktiv poloniy; 4) kadmiy; 5) kobalt; 6) qo'rg'oshin;7) margimush
A) 1, 2, 4 B) 3, 5, 6 C) 4, 5, 7 D) 1, 2, 3, 4, 5, 6, 7
89.Qon oqishining ortacha tezligi aortada(a), arteriyalarda(b), arteriolalarda(c), kapillarda(d), venalarda(e) gacha sekinlashadi.
1) 40 cm/sek 2) 40-10 cm/sek 3) 0,3-0,5 cm/sek 4) 0,1 cm/sek,5)10-0,1 cm/sek
A) a - 1; b - 2; c - 5; d - 4, e- 3 B) a - 2, 3; b - 5; c - 1; d - 4
C) a - 2, 3; b - 5; c - 4; d - 1 D) a - 2; b- 1, 5; c - 3; d - 4
23-24-25 mavzu
1. Nafas olish organlari sistemasiga qaysi organlar kiradi?
1) burun bo`shlig`i, 2) qizilo`ngach, 3) hiqqildoq, 4) Yevistaxey nayi, 5) traxeya,
6) halqum, 7) bronxlar, 8) o`pkalar, 9) plevra
A) 1,2,3,5,6,8, B) 2,4,6,8,9, C) 1,3,5,7,8,9, D) 2,3,6,5,7,9,
2. Nafas olishning tirik organizm hayotida tutgan o`rni nimalardan iborat?
1) nafas olish orqali tashqi muhitdan qabul qilingan kislorod ishtirokida hujayra va to`qimalarga oqsil, yog`, uglevodlar oksidlanib energiya hosil bo`ladi, 2) hujayrani tarangligi ortadi, 3) hujayra va to`qimalardagi barcha hayotiy jarayonlar qo`zg`alish, harakatlanish, ko`payish ana shu energiya hisobiga amalgam oshadi, 4) hujayrani hayotchanligi ortadi, 5) hayotiy jarayonlar natijasida hosil bo`lgan karbonat angidrid gazi hujayra va to`qimalardan qonga o`tib o`pkalar orqali tashqi muhitga chiqariladi
A) 1,3,5, B) 1,2,5, C) 1,3,4, D) 1,3,2,
3. Nafas olish bu …?
A) havo olish, B) kislorad olish,
C) kislorodni chiqarib, karbonat angidrit gazini yutish,

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