BUDDING BIOLOGY SCIENCE CHAPTER 07 CLASS 10 HOW DO ORGANISMS REPRODUCE

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=vIa_OLmS7Ys

BUDDING • ----------------- IN THIS PROCESS , THE PARENTAL ANIMALS PRODUCES A SMALL PROJECTION OUT FROM ITS BODY . THIS PROJECTION IS CALLED BUD OR MINIATURE ANIMAL. IT FURTHER GROW IN SIZE AND GET SEPARATED FROM THE PARENTAL BODY. IT THEN BECOMES A NEW INDIVIDUAL. • EXAMPLES,,,,, HYDRA , YEAST • THIS TYPE OF BUDDING IS IN HYDRA. • BUDDING IN YEAST • BUDDING IS ALSO FOUND IN ORGANISMS LIKE YEAST . YEAST IS AN UNICELLULAR FUNGUS.WHEN YEAST REPRODUCES BY BUDDING METHOD,A SMALL PROJECTION APPEARS ON THE UPPER PART OF THE CELL. THIS PROJECTION GRADUALLY BECOMES LARGER IN SIZE AND IS KNOWN AS BUD . NOW FROM THIS BUD ANOTHER BUD DEVELOPS IN SIMILAR MANNER. • THIS PROCESS OF BUD FORMATION FOR THREE TO FOUR TIMES . RESULTING IN THE FORMATION OF A CHAIN OF BUDS.LATER EACH BUD DEVELOPS IN TO A NEW YEAST CELL. • FRAGMENTATION • ------------------------------ IN MULTICELLULAR ORGANISMS WHICH HAVE A SINGLE BODY ORGANISATION.SOME SIMPLE REPRODUCTIVE METHODS CAN BE USED FOR REPRODUCTION. FOR EXAMPLE,IN SPYROGYRA A PORTION OF IT GETS DETACHED FROM THE MAIN BODY AND GIVES RISE TO A NEW INDIVIDUAL.THE DETACHED PIECE IS CALLED FRAGMENTATION. • BUT IN MAJORITY OF THE MULTICELLULAR ORGANISMS, THE REPRODUCTION BY THIS METHOD IS NOT POSSIBLE DUE TO INCREASING COMPLEXITY AND CELLULAR SPECIALISATION. • FRAGMENTATION • ------------------------------ IN MULTICELLULAR ORGANISMS WHICH HAVE A SINGLE BODY ORGANISATION.SOME SIMPLE REPRODUCTIVE METHODS CAN BE USED FOR REPRODUCTION. FOR EXAMPLE,IN SPYROGYRA A PORTION OF IT GETS DETACHED FROM THE MAIN BODY AND GIVES RISE TO A NEW INDIVIDUAL.THE DETACHED PIECE IS CALLED FRAGMENTATION. • BUT IN MAJORITY OF THE MULTICELLULAR ORGANISMS, THE REPRODUCTION BY THIS METHOD IS NOT POSSIBLE DUE TO INCREASING COMPLEXITY AND CELLULAR SPECIALISATION. • #budding#biology #mrkhanonlineclasses

#############################

New on site