Cov txheej txheem:
Video: Leej twg yog thawj tus kws tshawb fawb los kawm cov hlwb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Robert Hook
Yog li ntawd, leej twg yog 5 tus kws tshawb fawb uas tshawb pom cov hlwb?
Cov ntsiab lus hauv cov teeb no (5)
- Anton Van Leeuwenhoek. * Tus kws tshawb fawb Dutch.
- Robert Hook. * Saib ntawm cork hauv qab lub tshuab tsom.
- Matthias Schleiden. * 1838-pom tias tag nrho cov nroj tsuag yog tsim los ntawm cov hlwb.
- Theodore Schwann. * 1839-pom tias txhua tus tsiaj yog tsim los ntawm cov hlwb.
- Ruldolf Virchow. * Nyob ntawm 1821-1902.
Tsis tas li ntawd, leej twg yog cov kws tshawb fawb uas tau pab txhawb txoj kev xav ntawm tes? Peb tus kws tshawb fawb uas tau pab txhawb txoj kev loj hlob ntawm cell theory yog Matthias Schleiden , Theodor Schwann thiab Rudolf Virchow.
Ua li no, leej twg yog thawj tus nrhiav tau cov hlwb?
Robert Hook
Cov kws tshawb fawb tshawb fawb li cas?
Cov txheej txheem kev yees duab nthuav cov organelles thiab taug qab hlwb thaum lawv faib, loj hlob, sib cuam tshuam, thiab ua lwm yam haujlwm tseem ceeb. Biochemical lossis genetic tests tso cai rau cov kws tshawb fawb kawm ua li cas hlwb teb rau ib puag ncig kev ntxhov siab, xws li nce kub lossis co toxins.
Pom zoo:
Cov kws tshawb fawb twg hais tias txhua tus tsiaj yog tsim los ntawm cov hlwb?
Nws tau lees tias qhov kev xav no yog nws tus kheej, txawm tias BarthelemyDumortier tau hais nws ntau xyoo ua ntej nws. Qhov txheej txheem crystallization no tsis tau txais nrog kev xav ntawm tes niaj hnub. Xyoo 1839, Theodor Schwann tau hais tias nrog rau cov nroj tsuag, tsiaj txhu muaj cov hlwb lossis cov khoom ntawm cov hlwb hauv lawv cov qauv
Cov kws tshawb fawb siv dab tsi los kawm txog huab cua yav dhau los?
Cov lus qhia txog kev nyab xeeb yav dhau los tau muab faus rau hauv cov av hauv qab dej hiav txwv thiab pas dej, kaw cia hauv coral reefs, khov rau hauv cov dej khov thiab cov kaus mom dej khov, thiab khaws cia rau hauv cov rings ntawm cov ntoo kom txuas ntxiv cov ntaub ntawv no, paleoclimatologists nrhiav cov lus qhia hauv ntiaj teb ib puag ncig ntuj. cov ntaub ntawv
Tus kws tshawb fawb tau tshawb pom neutrons li cas?
Nws yog qhov zoo tshaj plaws uas cov neutron tsis tau tshawb pom txog thaum xyoo 1932 thaum James Chadwick siv cov ntaub ntawv tawg los mus xam qhov loj ntawm qhov nruab nrab no
Dab tsi yog cov cuab yeej lossis cov ntaub ntawv uas tus Kws Tshawb Fawb xav tau los txheeb xyuas cov ntaub ntawv nug?
Cov ntaub ntawv raug nug hauv chav kuaj ua txhaum cai yog nruab nrog lub tshuab ntsuas ntsuas, ntsuas cov duab digital, infrared thiab ultraviolet lub teeb ci, cov cuab yeej tshuaj ntsuam video thiab cov cuab yeej tshwj xeeb suav nrog cov khoom siv hluav taws xob tshawb pom electrostatic (EDD) thiab cov khoom siv los ua chemistry
Cov txheej txheem dab tsi uas tus kws tshawb fawb siv los tsim ntau cov ntawv luam ntawm DNA xav tau sau rau hauv daim ntawv dawb paug 1?
Molecular Cloning. Cloning tso cai rau tsim ntau cov ntawv luam ntawm cov noob, qhia cov noob, thiab kawm txog cov noob tshwj xeeb. Yuav kom tau txais cov DNA tawg rau hauv cov kab mob hauv cov kab mob hauv daim ntawv uas yuav tau theej lossis nthuav tawm, cov khoom tawg yog thawj zaug tso rau hauv plasmid