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U plodu je sakriveno sjeme
Plod i sjeme
 Posle oplodjenja zigot, ćelije sjemenog zametka i plodnika se dijele. Rezultat ovih
dioba je plod i sjeme.
 Plod u čijoj unutrašnjosti se nalazi sjeme razvija se iz plodnika tučka.
 Sjeme nastaje od sjemenog zametka.
Od čega je izgrađen plod?
Po čemu se razlikuju plodovi?
Po načinu nastanka
Po plodovim omotačima
Po načinu na koji rasijavaju sjemena koja kriju
Prema nastanku
plodovi mogu biti:
PROSTI (sljiva, jabuka, breskva...)
ZBIRNI (jagoda, malina, kupina)
SLOŽENI (smokva, ananas, murva)
Prema osobinama
omotača plodovi
mogu biti:
SOČNI (limun, lubenica, jabuka,
borovnica, grožđe...)
SUŠNI (orah, kesten, kikiriki, pistaći,...)
Prema načinu
rasijavanja sjemena
plodovi mogu biti:
PUCAJUĆI (grašak, mak, mahuna
bagrema,...)
NEPUCAJUĆI (šljiva, breskva, trešnja,
dinja,...)
Sjeme
 Sjeme je reproduktivni organ biljke koji služi za bespolno razmnožavanje.
 Građa sjemena:
 Klijanje sjemena:
Kako se rasijava sjeme?
 Biljke sa pucajućim plodovima same rasijavaju sjeme-SAMORASIJAVANJE
 Biljke sa nepucajućim plodovima rasijavaju sjeme pomoću:
• Vjetra
• Čovjeka
• Životinja
• Vode
Rasijavanje vjetrom
Rasijavanje vodom
maslacak
Plod javora
kasaronja
Rasijavanje životinjama
čičak
Rasijavanje posredstvom čovjeka
U plodu je sakriveno sjeme.pptx
U plodu je sakriveno sjeme.pptx
U plodu je sakriveno sjeme.pptx

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U plodu je sakriveno sjeme.pptx

  • 1. U plodu je sakriveno sjeme
  • 2. Plod i sjeme  Posle oplodjenja zigot, ćelije sjemenog zametka i plodnika se dijele. Rezultat ovih dioba je plod i sjeme.  Plod u čijoj unutrašnjosti se nalazi sjeme razvija se iz plodnika tučka.  Sjeme nastaje od sjemenog zametka.
  • 3.
  • 4. Od čega je izgrađen plod?
  • 5. Po čemu se razlikuju plodovi? Po načinu nastanka Po plodovim omotačima Po načinu na koji rasijavaju sjemena koja kriju
  • 6. Prema nastanku plodovi mogu biti: PROSTI (sljiva, jabuka, breskva...) ZBIRNI (jagoda, malina, kupina) SLOŽENI (smokva, ananas, murva) Prema osobinama omotača plodovi mogu biti: SOČNI (limun, lubenica, jabuka, borovnica, grožđe...) SUŠNI (orah, kesten, kikiriki, pistaći,...) Prema načinu rasijavanja sjemena plodovi mogu biti: PUCAJUĆI (grašak, mak, mahuna bagrema,...) NEPUCAJUĆI (šljiva, breskva, trešnja, dinja,...)
  • 7.
  • 8. Sjeme  Sjeme je reproduktivni organ biljke koji služi za bespolno razmnožavanje.  Građa sjemena:  Klijanje sjemena:
  • 9. Kako se rasijava sjeme?  Biljke sa pucajućim plodovima same rasijavaju sjeme-SAMORASIJAVANJE  Biljke sa nepucajućim plodovima rasijavaju sjeme pomoću: • Vjetra • Čovjeka • Životinja • Vode
  • 10. Rasijavanje vjetrom Rasijavanje vodom maslacak Plod javora kasaronja Rasijavanje životinjama čičak Rasijavanje posredstvom čovjeka