English
yordamida hujayralarni o'stirishda u turli omillarga sezgir. Harorat, PH qiymati, gaz muhiti va boshqalar, ularning osmotik bosimi ham juda muhim jihatdir.Gipertonik yoki gipotonik eritmalardagi hujayralar qisqarishi yoki shishishi va darhol yorilishi mumkin. Shuning uchun osmotik bosim hujayralarni in vitroda etishtirishning muhim shartlaridan biridir. Sutemizuvchilar va boshqa hayvonlarning to'qimalari hujayralarining osmotik bosimini in vitro sharoitida saqlab turish asosan NaCl bilan bog'liq, ammo boshqa dielektriklarning osmotik bosimi munosabatlarini e'tiborsiz qoldirib bo'lmaydi. Osmotik bosim erituvchining birlik hajmidagi erigan moddaning molekulalari va ionlari soniga proportsionaldir. Shu sababli, madaniy muhitdagi ion muvozanatini ma'lum nisbatda nazorat qilish va normal osmotik bosimni saqlash juda muhimdir. Bu nafaqat hujayra kuchlanishini saqlab qolish, balki hujayralar metabolizmini tartibga solish uchun hamdir. Hujayradan tashqari ionlarni tashish va ion kontsentratsiyasi boshqa oziq moddalarni (masalan, aminokislotalar, saxaroza va boshqalar) tashishni o'zgartirganligi sababli, u hujayralarning asosiy sintez tizimiga bevosita ta'sir qiladi.hujayra fabrikasi
Hujayra zavodida yetishtirilgan hujayralarning ideal osmotik bosimi hujayralar turi va irqi. Inson plazmasining osmotik bosimi 290 mmol / L ni tashkil qiladi, bu esa inson hujayralarini in vitroda etishtirish uchun ideal osmotik bosim hisoblanadi. Sutemizuvchilar hujayralarining osmotik bosimi odatda 290-300 mmol / L ni tashkil qiladi. Inson embrion o'pka fibroblastlari 250-325 mmol / L, sichqonlarda esa taxminan 310 mmol / L ni tashkil qiladi. Amaliy qo'llanmalarda 260-320 mmol/L osmotik bosim ko'pchilik hujayralar uchun mos keladi.
Xulosa qilib aytganda, osmotik bosim hujayralarning normal o'sishiga bevosita ta'sir qiladi. Hujayralarni etishtirish uchun hujayra zavodidan foydalanganda, hujayralarning yaxshi o'sishini ta'minlash uchun hujayralar sharoitlariga muvofiq tegishli osmotik bosimni saqlab turish kerak.
To sum up, the osmotic pressure directly affects the normal growth of cells. When using the cell factory to cultivate cells, it is necessary to maintain an appropriate osmotic pressure according to the conditions of the cells, so as to ensure the good growth of the cells.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.