9-sinf o’quvchilari uchun test

9-sinf o’quvchilari uchun test

1. Ko`k-yashil suvo`tlariga ko`krangni beruvchi pigment qanday ataladi?

A) fikotsian B) xlorofill C) ksantofill D) karotin

2. Prokariot organizmlarni aniqlang.

1) ossilatoriya 2) achitqizamburug`i 3)plaun 4)spirogyra 5)nostok 6)sil kasalligining tayoqchalari

А)1.2.3. В) 1.4.5.6 С)4.5.6 D) 2.3.5

3. Odamdagi virus kasalliklarini aniqlang.

1) gerpes; 2)gripp;3) OITS; 4) tamakimozaikasi; 5) ko`kyo`tal;6) qoqshol.

А)1.2.3.4 В) 3.4.5.6 С) 1.2.3 D)2.3.5

4. Qaysi qatorda lishayniklar guruhi to`gri keltirilgan?

1) parmeliya; 2) kladoniya; 3) batsidiya; 4) nitella ; 5) Ulva; 6) Spirogira.

А)1.3.5. В)2.3.4. С)1.2. D)3.4.6.

5.Hujayraning noorganik tarkibini aniqlang.

1) suv; 2) kalsiy tuzlari; 3) uglevodlar; 4) oqsillar; 5) kaliytuzlari; 6) yog`lar.

А) 1. 2. 3В) 2. 3. 4С)1.2.5 D)4. 5. 6

6.”Saydana” asrining muallifi kim?

A) Ibn Sino B)Abu Mansur Buhoriy C)Abu Rayhon Beruniy

D) Ibn Axaviy Buhoriy

7. Sharsimon shaklga ega bakteriyalar qanday ataladi?

A) vibrionlar B) spirillalar C) batsillalar D) kokklar

8. DNK molekulasining tarkibida 3125 adenin nukleotidi bor. Adenin nukleotidi umumiy nukleotidlarning 20%-ini tashkil qilsa, bu holda timin nukleotidining soni nechaga teng?

A) 3125 B) 6250 C) 4320 D) 9375

9. Agar DNK uzunligi 183,6 nm ga teng bo‘lib, undagi qo‘shni nukleotidlar orasidagi masofa 0,34 nm ga teng bo‘lsa, ushbu DNK fragmentida nechta nukleotidlar bo‘ladi va ular nechta aminokislotalarni kodlaydilar?

A) 540 ta, 180 ta B) 1080 ta, 180 ta C) 536 ta, 1800 ta D) 5480 ta, 180 ta

10. Quyidagi ketma-ketlikka ega bo‘lgan DNK zanjiridagi vodorod bog‘lar sonini toping.

ATTGSSTAGG

TAASGGATSS

A) 20 B) 22 C) 24 D) 25

11. Tiriklikni tuzilish, rivоjlаnish vа funksiоnаl birligi qаysi?

А ) B) C) D)

1 2. Yopishqоq lishаynikni bеlgilаng?

А ) B) C) D)

13. Хlоrоplаstni bеlgilаng?

А ) B) C) D)

1 4. Fаqаt o’simliklаrgа хоs оrgаnоid.

А ) B) C) D)

15. Gоrmоgоnilаr yordаmidа ko’pаyadigаn оrgаnizm?

А) B) C) D)