Electron microscopes puas tuaj yeem pom cov cell nyob?
Electron microscopes puas tuaj yeem pom cov cell nyob?

Video: Electron microscopes puas tuaj yeem pom cov cell nyob?

Video: Electron microscopes puas tuaj yeem pom cov cell nyob?
Video: The Secret Of Soap | How Soap Explodes Viruses Or How Soap Destroys COVID-19 Coronavirus 2024, Kaum ib hlis
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Cov electron microscope

Electron microscopes siv beam electrons es tsis txhob beams lossis rays ntawm lub teeb. Cov hlwb muaj sia tsis tuaj yeem soj ntsuam siv ib qho electron microscope vim cov qauv muab tso rau hauv lub tshuab nqus tsev

Ua kom pom qhov no, Cells Koj tuaj yeem pom dab tsi siv lub tshuab ntsuas hluav taws xob?

Cov cell phab ntsa, nucleus, vacuoles, mitochondria, endoplasmic reticulum, Golgi apparatus, thiab ribosomes yooj yim pom nyob rau hauv no kis tau tus mob. electron micrograph.

Tom qab, lo lus nug yog, tsuas yog pom tau nrog lub tshuab ntsuas hluav taws xob? Nrog kev sib kis electron microscope (TEM) thiab generic contrast staining (osmium, uranyl, lead) ntawm ib ntu los ntawm lub xov tooj ntawm tes yuav tsis yog nkaus xwb pom cov organelles tab sis nthuav dav hauv lawv. Yog vim li cas rau qhov sib txawv ntawm kev daws teeb meem yog vim qhov sib txawv wavelength ntawm lub teeb vs hluav taws xob nqaj.

Xav txog qhov no, vim li cas electron microscopes tsuas pom cov hlwb tuag?

Tias yog vim li cas particle beam ntawm electrons siv los illumination tus qauv kuj rhuav tshem cov qauv, txhais tau tias electron microscopes tau 'tsis siv los ua duab nyob hlwb.

Qhov siab tshaj plaws magnification ntawm electron microscope yog dab tsi?

Qhov kev daws teeb meem ntawm electron microscopes yog 0,2nm siab kawg pab tau magnification ib electron microscope tuaj yeem muab yog li 1,000,000x.

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