Chitsanzo cha Mafunso Okambirana Pa Kuyang'ana Kapangidwe ka Selo
Kuona kapangidwe ka maselo ndi nkhani yofunika kwambiri mu sayansi ya zamoyo, makamaka pophunzira mfundo zoyambira za moyo. Kumvetsa kapangidwe ka maselo kumatithandiza kumvetsetsa ntchito ya organelle iliyonse ndi momwe maselo amagwirira ntchito limodzi kuti apange minofu ndi ziwalo mkati mwa zamoyo. Mafunso otsatirawa ndi zitsanzo ndi mafotokozedwe awo omwe angatithandize kumvetsetsa bwino momwe maselo amagwirira ntchito.
Pendauluan
Maselo ndi mayunitsi oyambira a moyo omwe amapanga zamoyo zonse. Maselo amatha kugawidwa m'magulu awiri akuluakulu: maselo a prokaryotic ndi maselo a eukaryotic. Maselo a prokaryotic alibe nucleus yolumikizidwa ndi nembanemba, pomwe maselo a eukaryotic ali ndi nucleus yeniyeni yozunguliridwa ndi nembanemba. Kuphatikiza apo, maselo a eukaryotic ali ndi ma organelle osiyanasiyana olumikizidwa ndi nembanemba omwe amachita ntchito zinazake.
Chitsanzo Funso 1: Kuzindikira Zamoyo Kutengera Kapangidwe ka Selo
Funso: Popeza tapatsidwa mitundu iwiri ya maselo omwe amawonedwa pogwiritsa ntchito maikulosikopu. Selo loyamba lili ndi nucleus yooneka bwino komanso mitochondria, pomwe selo lachiwiri lilibe nucleus yolumikizidwa ndi nembanemba. Kutengera ndi zomwe zawonedwazi, dziwani mtundu wa chamoyo chomwe selo lililonse lingakhalemo.
Kukambirana:
Selo loyamba lomwe lili ndi nucleus ndi mitochondria limagawidwa ngati selo la eukaryotic. Maselo a eukaryotic nthawi zambiri amapezeka m'zamoyo monga ma protist, bowa, zomera, ndi nyama. Pakadali pano, selo lachiwiri, lomwe lilibe nucleus yolumikizidwa ndi nembanemba, ndi selo la prokaryotic. Maselo a prokaryotic ndi ofanana ndi zamoyo monga mabakiteriya ndi archaea. Chifukwa chake, kutengera kuwona kwa kapangidwe ka maselo awa, selo loyamba mwina ndi chamoyo cha eukaryotic, pomwe selo lachiwiri ndi chamoyo cha prokaryotic.
Chitsanzo Funso 2: Ntchito ndi Malo a Organelles
Funso: Tchulani ntchito za ma organelles otsatirawa ndi komwe amapezeka: ma chloroplast, rough endoplasmic reticulum, ndi ma lysosome.
Kukambirana:
1. Ma Chloroplast: Ma organelle awa ndi omwe amachititsa photosynthesis, njira yomwe mphamvu ya kuwala imasandutsidwira kukhala mphamvu ya mankhwala mu mawonekedwe a shuga. Ma Chloroplast ali ndi pigment chlorophyll, yomwe imapatsa zomera mtundu wobiriwira ndikugwira mphamvu ya kuwala. Ma organelle awa amapezeka makamaka m'maselo a zomera ndi algae.
2. Rough Endoplasmic Reticulum (RER): RER imagwira ntchito popanga mapuloteni ndi kusintha mapuloteni koyamba. Dzina lake limachokera ku ma ribosome omwe ali pamwamba pake, zomwe zimapangitsa kuti iwoneke ngati yoyipa pansi pa maikulosikopu. RER ndi gawo la dongosolo la endomembrane lomwe limakhudzidwa ndi kupanga mapuloteni ndikusamutsira kumadera osiyanasiyana a selo. RER imapezeka kwambiri m'maselo a eukaryotic a nyama ndi zomera.
3. Ma Lysosome: Ma organelle awa amagwira ntchito ngati malo ogaya chakudya a selo, komwe mamolekyu akuluakulu amagawidwa m'zigawo zing'onozing'ono ndi ma enzyme a hydrolytic. Ma Lysosome nawonso amagwira ntchito mu autophagy, njira yochotsera zigawo za maselo zowonongeka kapena zosafunikira. Ma Lysosome amapezeka m'maselo a nyama.
Chitsanzo Funso 3: Kusiyana Pakati pa Maselo a Zomera ndi Maselo a Zinyama
Funso: Fotokozani kusiyana kwakukulu kutatu pakati pa maselo a zomera ndi maselo a nyama.
Kukambirana:
1. Khoma la Selo: Chimodzi mwa kusiyana komwe kumawoneka mosavuta ndi kukhalapo kwa khoma la selo mozungulira nembanemba ya selo m'zomera. Khoma la selo ili limapangidwa ndi cellulose, zomwe zimapangitsa zomera kukhala zolimba komanso zolimba. Mosiyana ndi maselo a zomera, maselo a nyama ali ndi nembanemba ya plasma yokha yopanda khoma la selo.
2. Ma chloroplast: Maselo a zomera ali ndi ma chloroplast omwe amagwiritsidwa ntchito popanga photosynthesis, pomwe maselo a nyama alibe. Kusowa kwa ma chloroplast m'maselo a nyama kumatanthauza kuti sangathe kuchita photosynthesis.
3. Ma Vacuoles Aakulu: Maselo a zomera nthawi zambiri amakhala ndi vacuoles imodzi kapena zingapo zazikulu zomwe zimadzaza kuchuluka kwa selo, zomwe zimathandiza kusunga michere ndi zinyalala ndikusunga mphamvu ya turgor. Ma Vacuoles m'maselo a nyama nthawi zambiri amakhala ang'onoang'ono ndipo satenga malo ambiri ngati omwe ali m'zomera.
Chitsanzo Funso 4: Kugwiritsa Ntchito Maikulosikopu Kuona Maselo
Funso: Kodi kusiyana pakati pa maikulosikopu yopepuka ndi maikulosikopu ya elekitironi ndi kotani pakuwona maselo?
Kukambirana:
– Microscope Yowala: Imagwiritsa ntchito kuwala kuti iwonetse chithunzi cha chitsanzo. Microscope iyi imalola kuwona maselo amoyo ndipo imatha kuwulula mtundu weniweni wa maselo ndi ma organelles (mothandizidwa ndi utoto). Komabe, mphamvu ya microscope yowala imakhala pafupifupi ma nanometer 200.
– Electron Microscope: Imagwiritsa ntchito kuwala kwa ma elekitironi kuti ikweze zithunzi za chitsanzo. Ma elekitironi a ma elekitironi ali ndi mphamvu yowonjezereka kuposa ma microscope opepuka, omwe amatha kutsimikizira mpaka 0,1 nanometers. Komabe, zitsanzo ziyenera kukhala zouma ndipo nthawi zambiri zophimbidwa ndi chitsulo kuti zigwiritsidwe ntchito pa njira zina zowonera, zomwe zimapangitsa kuti zisagwiritsidwe ntchito poona maselo amoyo.
Kutseka
Kumvetsetsa kapangidwe ka maselo ndi maziko ofunikira kwambiri mu biology, zomwe zimatithandiza kumvetsetsa momwe zamoyo zimagwirira ntchito yonse. Njira zosiyanasiyana zowonera maselo zimatithandiza kuphunzira zambiri za kusiyanasiyana kwa zamoyo pamlingo wa microscopic. Chidziwitso ichi n'chofunika kwambiri osati pa maphunziro okha komanso pa kafukufuku wa sayansi, zomwe zingayambitse kupeza zinthu zatsopano mu sayansi ndi zamankhwala. Mwa kuphunzira mafunso ndi zokambirana izi, tikuyembekeza kukulitsa kumvetsetsa kwathu kufunika kodziwa ndikumvetsetsa kapangidwe ka maselo.
