ʻO Cytosol: Ka ʻĀpana ʻIke ʻole ʻia o nā Kelepona
Ke aʻo mākou i ke olaola o ke kelepona, nānā pinepine mākou i nā ʻāpana i ʻike ʻia a maopopo hoʻi, e like me ka nucleus, mitochondria, a me ka endoplasmic reticulum. Eia nō naʻe, aia i loko o ke kelepona kahi ʻāina ākea a nānā pinepine ʻole ʻia: ka cytosol. He wai intracellular paʻakikī ka cytosol kahi e hana ai nā kaʻina hana metabolic koʻikoʻi a lana nā ʻāpana kelepona ʻē aʻe. Ma kēia ʻatikala, e ʻimi mākou i nā mea i loko a i waho o ka cytosol, kona kuleana i loko o ke kelepona, a no ke aha he mea nui loa ia i ke ola kelepona.
He aha ʻo Cytosol?
Ma mua o ke komo ʻana i ke kūkākūkā hou aku, he mea nui e hoʻokaʻawale ma waena o ka cytosol a me ka cytoplasm. ʻO Cytosol ka ʻāpana wai o ka cytoplasm, koe naʻe nā organelles a me nā ʻano intracellular e like me ka cytoskeleton. I kēia manawa, hoʻopuni ka cytoplasm i nā mea āpau o ke kelepona i loko o ka membrane plasma, koe wale nō ka nucleus. I nā huaʻōlelo ʻē aʻe, inā e hoʻohālikelike ʻia ka cytoplasm me ke kūlanakauhale, a laila ʻo ka cytosol nā alanui a me nā wahi ākea e hoʻopili ana i nā hale.
He wai ka hapa nui o Cytosol, akā ʻoiai kona inoa, "wai cellular," ʻaʻole ia he wai maʻemaʻe. Loaʻa iā ia nā paʻakai i hoʻoheheʻe ʻia, nā molekala organik, nā ion, a me nā protein. ʻOi aku kona ʻano like me ka gel ma muli o ke alo o nā macromolecules a me nā protein i hoʻoheheʻe ʻia, e lilo ia i mea kūpono no nā hopena biochemical.
Ka Hoʻohuihui ʻana o Cytosol
He hui paʻakikī ka cytosol o nā molekala like ʻole. Ma kahi o 70-80% o ka cytosol he wai, nona ke kuleana koʻikoʻi i ka mālama ʻana i ke ʻano o ke kelepona a me ka ʻae ʻana i nā molekala e neʻe a hoʻokō i nā hopena biochemical. Ma waho aʻe o ka wai, aia i loko o ka cytosol:
1. Nā Protein a me nā Enzymes: ʻO nā protein kahi ʻāpana nui o ka cytosol, me nā enzymes e hoʻoulu ai i nā ʻano hopena metabolic like ʻole. ʻO nā hiʻohiʻona o nā enzymes i loaʻa i loko o ka cytosol e komo pū me nā enzymes ʻeono o ke ala glycolysis, e kōkua ana i ka wāwahi ʻana i ka glucose e hana i ka ikehu.
2. Nā ʻIona a me nā Paʻakai: Hoʻoheheʻe ʻia nā ʻIona e like me ka potassium, sodium, magnesium, a me ka calcium i loko o ka cytosol a pāʻani i kahi kuleana i ka hoʻoponopono ʻana i ka hana o ke kelepona ma o ka hoʻoponopono ʻana i ka hiki o ka membrane a me nā hōʻailona kelepona.
3. Nā Molekala Organic: ʻO kēia mau mea e komo pū me nā kalapona maʻalahi, nā waikawa amino, nā nucleotides, a me nā lipids. He mea nui kēia mau molekala organik no ka hana macromolecular.
4. Nā Filaments Cytoskeletal: ʻOiai ʻaʻole ia he ʻāpana o ka wai cytosolic, hāʻawi nā filaments cytoskeletal i ke kākoʻo kūkulu a me nā ala no ka lawe ʻana i nā molekala a me nā organelles i loko o ke kelepona.
Nā Hana o ka Cytosol
ʻOiai ua hoʻopoina pinepine ʻia, he nui nā hana koʻikoʻi o ka cytosol:
1. Kahi e Hana ʻia ai ka Metabolism: Nui nā ala metabolic cellular, me ka glycolysis, e hana ʻia ma ka cytosol. Aia nā enzymes a me nā substrates o kēia mau ala i loko o ka cytosol, a ʻo ka huahana o ka glycolysis he pyruvic acid, hiki ke hoʻohana hou ʻia i loko o ka mitochondria no ka hana hou ʻana i ka ikehu.
2. Ka Halihali Intracellular: Hana ka cytosol ma ke ʻano he waena e hiki ai i nā molekala a me nā organelles ke neʻe i loko o ke kelepona. Hāʻawi nā microtubules a me nā microfilaments o ka cytoskeleton i nā ala no ka halihali ʻana i nā vesicles a me nā organelles i loko o ka cytosol ma o nā ʻano hana o nā protein motor e like me kinesin a me dynein.
3. Ka Hoʻoponopono ʻana o ka Osmosis a me ka Leo o ke Kelepona: Hoʻopilikia ka nui o nā ion i loko o ka cytosol i ke kaomi osmotic, kahi e hoʻopilikia ai i ka hoʻoponopono ʻana o ka leo o ke kelepona. He mea nui kēia hoʻoponopono no ka mālama ʻana i ke olakino o ke kelepona a me ka pale ʻana i ka lysis o ke kelepona a i ʻole ka emi ʻana ma muli o nā loli o ke kaomi osmotic.
4. Ka Hoʻololi ʻana i nā Hōʻailona: Hilinaʻi ka nui o nā ala hoʻololi hōʻailona i nā protein a me nā ion i hoʻoheheʻe ʻia i loko o ka cytosol. Hiki i kēia mau hōʻailona ke puka mai waho o ke kelepona a hoʻoulu i nā pane e like me ka proliferation, apoptosis, a i ʻole nā loli metabolic.
Hoʻololi ʻana o Cytosol i nā ʻāpana like ʻole
E like me nā ʻāpana kelepona ʻē aʻe he nui, hiki ke ʻokoʻa ke ʻano a me ka hana o ka cytosol ma muli o ke ʻano o ke kelepona a me ke kaiapuni. No ka laʻana, pono nā ʻāpana ʻiʻo i kahi kiʻekiʻe o nā ion calcium i loko o ka cytosol e hoʻomaʻamaʻa i ka ʻūlū ʻana o nā ʻiʻo. I kēia manawa, loaʻa paha i nā ʻāpana cytosolic i nā mea kanu a me nā bacteria i hoʻololi ʻia e mālama a hoʻololi i ka ikehu ma lalo o nā kūlana kaiapuni koʻikoʻi.
ʻO Cytosol ma ke ʻano he Pahuhopu Noiʻi
Ma muli o ka hana ʻana o nā hana biochemical nui i loko o ka cytosol, ʻaʻole ia he mea kupanaha ua kālele ka noiʻi koʻikoʻi i ke ana ʻana i nā palena cytosolic e like me ka pH, ka nui o ka ion, a me ka viscosity. Hiki i kēia mau loli ke kumu o nā maʻi he nui a me nā kūlana pathological. No ka laʻana, ʻo ka hana ʻole ʻana i ka hoʻoponopono ionic i hoʻokumu ʻia e ka hōʻino ʻana i nā protein membrane hiki ke hopena i nā maʻi e like me ka cystic fibrosis.
I loko o ka pharmacology, ke aʻo ʻia nei hoʻi ka cytosol ma ke ʻano he pahuhopu no ka hoʻomohala ʻana i nā lāʻau lapaʻau. Hiki i nā protein i loko o ka cytosol ke lawelawe ma ke ʻano he mau pahuhopu molekala no nā hui therapeutic, e like me nā enzymes kikoʻī e pili ana i nā ala metabolic cell cancer i hiki ke kāohi ʻia no ka therapy cancer.
Ka hopena
ʻAʻole paha he nui nā ʻano hana kupaianaha o ka cytosol e like me nā organelles ʻē aʻe, akā he kuleana koʻikoʻi kona i ka mālama ʻana i ka hana a me ke olakino o ke kelepona. Ma ka hoʻomaʻamaʻa ʻana i nā kaʻina hana metabolic, ka hoʻoponopono ʻana i ka hoʻohuihui kemika o loko, a me ka hiki ke kamaʻilio ma waena o nā ʻāpana kelepona, he mea nui ka cytosol i ke ola o ke kelepona.
Ke hoʻomau nei ka ulu ʻana o ke aʻo ʻana i ka cytosol, a me ka holomua ʻana o ka ʻenehana microscopy a me ka nānā ʻana i ka biochemical, ke hoʻomaopopo nei mākou i ka paʻakikī o ka honua liʻiliʻi e hoʻopiha ana i nā hakahaka i loko o nā cell. ʻO ka wā e hiki mai ana o kēia noiʻi e hoʻohiki nei i kahi ʻike hohonu o ke ʻano o ka hopena o nā loli i loko o ka cytosol i ke olakino, e kōkua ana iā mākou e ʻike i nā hopena hou i nā pilikia biomedical like ʻole. I loko o kahi honua o ka mahalo nui ʻana i nā kikoʻī liʻiliʻi loa o ke olaola, kū maoli ka cytosol ma ke ʻano he hoʻokahi o nā kiʻi "ʻike ʻole ʻia" akā koʻikoʻi i ka biology cell.
