Plant respiration

Ukuphefumla - oku ipropati jikelele kuzo zonke izinto eziphilayo emhlabeni. Ipropati iphambili mpilo sokuphefumla le nkqubo zihlanganise zokuphila inyama oganikhi khompawundi ukwenza amanzi kunye carbon dioxide. isityalo nokuphefumla ihamba nokufunxwa eziphilayo zezityalo amanzi, kunye nezityalo kwindawo ezingqongileyo kukhutshwe carbon dioxide.

Xa uphefumla ngokuba ukuzikhetha amandla izityalo osetyenzisiweyo into ephilayo, le nkqubo umva yiphotosynthesis xa izityalo kwizihlunu izondlo yande. Emini phantse zonke izityalo zivelisa ioksijini, kodwa iiseli zabo ngaxeshanye ubamba inkqubo ukuphefumla, kodwa kwenzeka ngaphantsi okukhulu. Plant nokuphefumla ebusuku kukho esebenzayo, ngokuchaseneyo yiphotosynthesis, leyo, ngaphandle ukufikelela izingxi ukukhanya.

Act of ukuphefumla kwizityalo

Kwaye iseli yezityalo, ngokulandelelana, yonke isityalo liphela, kukho ilungiselelwa ukuhamba rhoqo kwezinto zeplastiki kunye namandla. Isenzo ukuphefumla, ukusuka kwindawo eekhemikhali lwembono, ubunjwe iiyunithi chain ezininzi ezinxulumene redox esisabela kwenzeka phakathi organelles zeselula, kwaye zihamba-arhente cleavage. Akhutshiweyo yi cleavage se-eneji esetyenziswayo ukuba amandla isityalo.

internal lwangaphandle izityalo - lonaniselwano igesi phakathi eziphilayo ngqo nesityalo ngaphandle ngenxa yokondliwa kwamagqabi okanye lenticels zemithi. Nokuphefumla zezityalo eziququzelelwe kakhulu ukuba amagqabi, imithi, iziqu, ngamnye iiseli lisiza.

ijwabu respiration

Ngexesha internal yeselula izityalo ukukhawulelana isakhiwo ezikhethekileyo iiseli - i-mitochondria. Ezi organelles of plant cells zahluke kakhulu kwezo lwezilwanyana anokuthi awucacise awohluke yobomi inkqubo yezityalo (yokuphila - esisigxina, utshintsho yokucolwa ngenxa iimeko ziyatshintsheka kwezendalo).

Ngoko ke, iindlela zezityalo nokuphefumla ihamba igcwala olongezelelweyo izinto eziphilayo, leyo ziveliswa enqanda ezizezinye. algorithm ukuphefumla angamelwa buzotywe njengoko igcwala indlela icarbon dioxide namanzi iswekile ngenxa ukufunxeka oksijini. Oku kukhatshwa kokukhutshwa ubushushu, apho kubonakala ngokucacileyo iintyatyambo eqhubela phambili kunye ukuntshula kwembewu. isityalo nokuphefumla - akukho unikezelo nje amandla okukhula nophuhliso ngakumbi kwisityalo. Ukuphefumla indima ebaluleke kakhulu. Kumabakala eziphakathi inkqubo yokuphefumla uvelisa khompawundi organic zisetyenziswa ngoko ke ukutya, ezifana pentose kunye asidi organic. Yokuphefumla nangefotosinthesisi, nangona malunga kwindalo, ngaba amaqhina oqhagamshelwano phakathi, njengoko imithombo abathwali yamandla ezifana NADPH, ATP kunye metabolites kwiseli. Amanzi, ephuma xa uphefumla kwiimeko ezomileyo ogcina isityalo evela emzimbeni. Ngoko ke, ukuba nkqubo olunamandla kakhulu, ifaka amandla zokuphefumla ubushushu kunokubangela ukulahleka umcimbi owomileyo weeseli eziphilayo.