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Bičari i alge

QuestionAnswer
____________ su protisti koji imaju posebnu organelu za kretanje – bič. Bičari
Zelena __________ je najpoznatiji bičar koji živi u barama i u drugim stajaćim vodama. euglena
Euglena se hrani:
- ____________ – u prisustvi svjetlosti proizvodi hranu kao biljka i
- heterotrofno – u odsustvu svjetlosti uzima gotove hranljive materije- kao životinje autotrofno
Da razlikuje svijetlost od tame, eugleni pomaže ___________. očna mrlja
____________ je zajednica bičara kod koje se ćelije poslije diobe ne razilaze, nego ostaju zajedno. Kolonija
_________ je zelena alga koja živi u bari, kolonija od nekoliko desetina hiljada ćelija među kojima postoji podjela poslova. Volvoks
Jedne ćelije pokreću volvoks, druge vrše _______________, a treće imaju ulogu u razmnožavanju – diobi. fotosintezu
Razlika između jednoćelijske i višećelijske alge JE U TOME što su jednoćelijske alge mikroskopske ____________, a višećelijske mogu da budu duge i po nekoliko desetina metara. veličine
___________je tijelo višećelijske alge, koje može biti različitog oblika – pločastog, razgranatog, končastog. Talus
Sve alge nisu zelene jer pored hlorofila (zelenog pigmenta) mogu da imaju i druge _________ – crveni, žuti, mrki pigmente
Pigmenti kod algi služe da ___________ svjetlost i prave hranu na različitim dubinama. upijaju
Ćelije alge imaju sličnu građu kao biljne ćelije – imaju ćelijsi zid, ćelijsku membranu, _________, hloroplasti i citoplazmu. jedro
Plankton je ___________ organizama koji plutaju gornjim slojevima okeana i slatkih voda i čiji su važan dio jednoćelijske zelene alge. zajednica
Vrste algi su:_____________, crvene i mrke alge. silikatne
Alge su največi _____________ hrane i kiseonika na zemlji. proizvođači
Alge su __________ su za vodene organizme skloništa
Alge su bogate __________ i vitaminima pa se koriste u ishrani. mineralima
Alge imaju ljekovita svojstva pa se koriste u ___________. medicini
Created by: Ognjen
 

 



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