Maumbirwo uye Mashandiro eEndoplasmic Reticulum Endoplasmic reticulum (ER) inhengo inokosha mukati memasero eukaryotic, ichiita basa guru mukugadzirwa, kugadziriswa, uye kuparadzirwa kwemamorekuru akasiyana-siyana. Iyi nhengo inoumba network yakakura, yakabatana ye membranes, yakafanana ne "fekitori" uye "nzira yekufambisa" mukati mesero. Nekuda kwemabasa ayo akasiyana-siyana, endoplasmic reticulum inokosha pakuchengetedza... Read more
Migumisiro Yekusvuta Patsinga Dzekufema Kusvuta kuchiri chimwe chezvinowanzoitwa nevanhu vazhinji munharaunda, pasinei nenjodzi dzacho dzinozivikanwa pahutano. Imwe yetsinga dzemuviri dzinokurumidza uye dzakanyanya kukanganiswa nekusvuta itsinga dzekufema. Kuputa kwega kwega kweutsi hwefodya kunotakura musanganiswa wezviuru zvemakemikari, anosanganisira nicotine, tar, carbon monoxide, formaldehyde, benzene, … Read more
Mabhenefiti eFlavonoids paHutano hweMwoyo Hutano hwemwoyo ndechimwe chezvinhu zvakakosha pakuchengetedza hupenyu hwakanaka. Zvirwere zvemwoyo zvakaita sechirwere chemwoyo, BP, uye sitiroko zvinoramba zviri izvo zvinokonzera rufu munyika dzakawanda, kusanganisira Indonesia. Nokudaro, matanho ekudzivirira kuburikidza nekudya zvine hutano ari kuramba achizivikanwa. Rimwe boka remakemikari echisikigo ayo… Read more
Kushanda kweMitsipa yeropa muKupa Okisijeni kuMwoyo Moyo inhengo inokosha inoshanda nesimba kupomba ropa mumuviri wese. Kuti tsandanyama yemwoyo (myocardium) igare ichidzika uye ine simba, inoda okisijeni nezvinovaka muviri nguva dzose. Zvinofadza kuti, kunyange zvazvo mwoyo uine ropa mumakamuri ayo, tsandanyama yemwoyo haitore okisijeni zvakananga kubva muropa riri mukati... Read more
Basa reMaerekitironi Mukufambisa Magetsi Mumasero Kufambisa magetsi chinhu chakakosha muhupenyu. Maitiro ese akakosha ehupenyu—kubva pakurwadziwa kwetsandanyama uye kutapurirana kwetsinga kusvika pakuburitswa kwemahormone—zvinoenderana nekukwanisa kwesero kugadzira nekudzora magetsi. Muchiitiko ichi, maerekitironi anoita basa guru. Maerekitironi zvinhu zvinopatsanurwa kuita maion ane chaji kana zvanyungudutswa mumvura, … Read more
Kukosha kweCholesterol pakugadzirwa kwemahormone Cholesterol inowanzoonekwa se "muvengi" wehutano nekuti inowanzobatanidzwa nezvirwere zvemwoyo netsinga dzeropa. Zvisinei, cholesterol haisi chinhu chinokuvadza chinofanira kudziviswa. Mumuviri, cholesterol ine mabasa akakosha ehupenyu, rimwe rawo riri sezvinhu zvakakosha pakuumbwa kwemahormone akasiyana-siyana akakosha. Pasina cholesterol, muviri haunga... Read more
Basa reAmino Acids muMagadzirirwo eMapuroteni Mapuroteni ndeimwe yema biomolecule makuru anogadzira zvinhu zvipenyu. Maitiro ese ehupenyu—kubva pakuumbwa kwenyama uye mashandiro ema enzyme kusvika pakutakura zvinhu uye mhinduro dzemuviri—anoenderana nemapuroteni. Zvisinei, mapuroteni haasi mayuniti ega ega, akagadzirira kugadzirwa. Mapuroteni anoumbwa nezvikamu zvidiki zvinonzi amino acids. Kunzwisisa mashandiro ema amino acids… Read more
Mapombi Emwoyo Eropa Moyo ndiwo injini huru muhurongwa hweropa remunhu. Sekondi yega yega, nhengo iyi yakakura sechibhakera inoshanda isinganeti kutenderera ropa mumuviri wese. Ropa rinoendesa okisijeni nezvinovaka muviri kumasero, ukuwo richibvisa carbon dioxide netsvina yemetabolism kuti ibudiswe. Pasina kupomba kwemoyo nguva dzose, nhengo dzinokosha dzakadai se... Read more
Maumbirwo uye Mashandiro eCerebrum Cerebrum ndiyo chikamu chikuru chehurongwa hwepfungwa hwemunhu. Chimiro ichi chinotora chikamu chikuru cheganda remusoro uye ndiyo nzvimbo huru yekudzora mabasa edu ezuva nezuva, kubva pakufunga nekurangarira kusvika pakutaura nekududzira zvinokurudzira kunzwa kusvika pakudzora kufamba kwemunhu achiziva. Pasina cerebrum, vanhu vaisazokwanisa... Read more
Mhedzisiro Yekufuta Panjodzi Yechirwere Chemwoyo Kufuta idambudziko apo mafuta akawandisa mumuviri anoungana, izvo zvinogona kukanganisa hutano. Mumakumi emakore achangopfuura, huwandu hwekufuta hwakawedzera munyika dzakasiyana-siyana, kusanganisira Indonesia. Kudya zvine macalorie akawanda, mararamiro ekugara pasi, kushaya maekisesaizi emuviri, kurara zvisina kurongeka, uye kushushikana kwenguva refu ndezvimwe zvezvinhu zvinokonzera. Kune rumwe rutivi, chirwere chemwoyo... Read more
