Meaning of amagciwane ngokwemvelo futhi ukuphila komuntu. Izinto ukuze isifundo eklasini 6

Ama-bacterium, ngokososayensi, - abakhileyo Umhlaba eminingi yasendulo. Bavele emhlabeni ezikhathini zasendulo, futhi isikhathi eside ngoba yibo bodwa kuyo. isakhiwo wabo lasekuqaleni. Lokhu eziphilayo owumphumela, eziningi zazo manje azigcina izici eziyisisekelo wawoyise ugcwale Umhlaba ezikhathini zasendulo. Meaning of amagciwane ngokwemvelo futhi ukuphila komuntu, ngisho nezindaba ezinzima ukuhlola.

abaningi

Kusukela kokusungulwa lokuqala ephezulu amandla isibonakhulu (engu-17), okuvumela ukuba ucabangele lezi ezincane abebehlala ulwandle nezwe, sebuningini kubo wavulwa. Ngo isayensi, zingabantu iqembu elehlukile, ibizwa ngokuthi - "bacterium". Ngaphambi sikhuluma ukubaluleka amagciwane ngokwemvelo futhi ukuphila komuntu, amagama ambalwa ngazo.

Okuncane amagciwane

Bangaba umumo ezahlukene. Cocci - eyindilinga, imbewu eletha - Induku emise, vibrio - efana amakhoma, spirilla - Kuvunguza, streptococci - chain staphylococci - amaqoqo, diplococci - pair oyindilinga. Bonke ayakwazi ukuthuthela usebenzisa flagella, noma ngezinye izindlela. Ama-bacterium zitholakala yonke indawo, ngisho amaconsi amanzi ambiwa phansi amsulwa enhlabathini, emoyeni, emadwaleni kanye ebusweni isikhumba. Babuye atholakala kwezinye nezinye izinto eziphilayo, ezifana abantu. Vele umuntu igremu zomhlaba abamnyama bangaphila izigidi zama-bacterium. Ziyakwazi linesizotha futhi iphila kakhulu: ukumelana okushisa afinyelela ku-90 degrees, abafi lapho simisiwe, avuke emkhathini-30 km, yehlani ngokujulile phansi ngezinyawo amakhilomitha, ohlala e-emajukujukwini olwandle - amakhosi wangempela waleli zwe!

Meaning of amagciwane ngokwemvelo futhi ukuphila komuntu

1. Ukuguqula wezinto zokubasa. Ama-bacterium ngenkuthalo kabusha futhi bachithe izilwane ezifile bese izitshalo. Ngenxa yalokho, basuke iguqulwe ibe umquba inhlabathi izingqimba, nokugcina nokusakazwa izinto eziphilayo azithathe ngokwemvelo. Ngokwesibonelo, amaqabunga sehla isihlahla ekwindla emhlabathini, inkathi ezayo uyoshintshwa ngemagciwane ibe semboza ngabo izithombo zezihlahla izinga, zalisa inhlabathi, esiza ukondla esihlahleni.
2. Absorption nitrogen nenkanuko edlulele. Kuphela la magciwane ngaphansi umphumela nitrogen nokwenziwa. enzyme Special kwenze amagciwane ukuncela nitrogen umkhathi yokuxhuma ngayo amaminerali, kuphenduke umquba izitshalo.
3. Ukukhiqizwa komoya-mpilo. Cishe, siyoba nawe ucishe ngaphandle amagciwane. Ngenxa share sengonyama oxygen ozungeze umhlaba ukukhiqiza inqwaba izidalwa ezincane. Cishe lena yiyona ukubaluleka main kwegciwane imvelo kanye nempilo yomuntu.
4. Ukukhiqizwa imikhiqizo yobisi isibilile. Ngaphandle la magciwane ezincane bekungeke kudingeke amasi, futhi ngenxa yalokho, i-yogurt, kefir, ushizi kanye neminye imikhiqizo ajwayelekile kithi.
5. Epulazini. Futhi kwezolimo amagciwane ukusiza umlimi ukubhekana nezilokazane ukhula ngokwethula inhlabathi umquba amagciwane.

Meaning of amagciwane ngokwemvelo futhi ukuphila komuntu. Izinzuzo nezingozi nebubi

Nokho, la magciwane ezincane akuzona kuphela abasizi zethu. Kusukela kwabo kukhona umonakalo emvelweni bese indoda. Ama-bacterium zithwale okunye ukwaziswa izifo eziyingozi: isib ikholera, isifo sofuba, nabanye abaningi. Ziyakwazi abangela umqedazwe ongabhubhisa esintwini. Ngisho wadala ebulalayo ezahlukene zamagciwane, manje asivunyelwe emhlabeni. Ngakho-ke, umuntu kufanele abagcine kokubuyekezwa njalo.

Lezi izinto ingase isetshenziselwe sifundo "Inani amagciwane ngokwemvelo futhi ukuphila komuntu" (grade 6).