Nazorat ishi, laboratoriya va amaliy mashg

O‘quvchining bahosi:
Sana:
4-laboratoriya mashg'uloti
Achitqi zamburug'idan foydalanib non tayyorlash jarayoni bilan tanishish
Kerakli jihozlar: buyum oynasi, qoplag'ich oyna, pipetka, mik- roskop, filtr qog'oz, shakar, tuz, iliq suv, un, achitqi zamburug'i (xamirturush).
Ishni bajarish tartibi:
1.Shakarli suvga xamirturush solib, iliq joyga qo'ying.
2.Ko'pchib chiqqan xamirturushdan pipetka yordamida olib, bu¬yum oynasiga tomizing.
3.Qoplag'ich oyna bilan yopib, ortiqcha suvni filtr qog'ozga shim¬diring.
4.Mikroskop yordamida achitqi zamburug'larini kuzating.
5Mikroskop ostida ko'rganlaringizning rasmini daftaringizga chi- zing.
6.Bir kosa iliq suvda 1 oshqoshiq tuzni eriting, ozgina yog' va xamirturush soling.
7.Kattalar yordamida yumshoq xamir qoring.
8.Tayyor xamirning ustini yopib, issiq joyga qo'ying.
9.Oshgan xamirdan kulchalar yasab, yana oshib chiqquncha poy- lang.
10.Kattalar yordamida nonni pishiring.
11.Xulosa yozing.


Xulosa
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