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Examen
TEM FOUNDATION questions and certified answers 2023/2024
TEM FOUNDATION questions and certified answers 2023/2024 About how fast is an electron moving in a TEM? - Answers About 50% the speed of light Why are electrons so handy when you are making a microscope? - Answers Electrons have strong scattering by matter giving excellent contrast, and they can be easily focused with magnetic lenses what characteristic of the electron creates amazing resolution - Answers its short wavelength What is the single biggest difference between a SEM and a ...
KieranKent55
Examen
TEM Light microscopes vs electron microscopes Questions and answers 2023/2024
TEM Light microscopes vs electron microscopes Questions and answers 2023/2024 How light microscopes work - Answers Light clarifies image and lense refracts light around the glass to produce image Advantages of light microscopes - Answers Thin specimen can be alive, cheapest, common Disadvantages of light microscopes - Answers Requires staining, magnification limited to 2000x, resolution limited to 200nm How scanning electron microscopes work - Answers A beam of electrons hit the surf...
KieranKent55
Examen
TEM Electrons Definitions Questions and answers 2023/2024
TEM Electrons Definitions Questions and answers 2023/2024 Anion - Answers A negatively charged ion. Cation - Answers A positively charged ion. Electron - Answers A particle with a net charge of -1 and a mass of 1/1836 a.m.u., found in the energy levels outside the nucleus. They are lost, gained or shared in the formation of a chemical bond. Electronegativity - Answers An atom's attraction to electrons in a chemical bond. Used to determine bond type, polarity of a molecule and attr...
KieranKent55
Examen
TEM Electron Carriers Questions and answers 2023/2024
TEM Electron Carriers Questions and answers 2023/2024 When sunlight hits the molecules of chlorophyll, the _________ in the chlorophyll molecules become very _______. Excited electrons are electrons that have: - Answers Electrons, excited, ask These high energy electrons need a _______. Cells use electron carriers to transport_______ from chlorophyll to other molecules. - Answers Carrier, high energy electrons An electron carrier is a compound that can accept a pair of high-energy elect...
KieranKent55
Examen
Different types of electron microscopy and ready answers 2023/2024
Different types of electron microscopy and ready answers 2023/2024 What are the two main types of electron microscopy? - Answers: transmission electron microscopy, scanning electron microscopy What does TEM stand for? - Answers: transmission electron microscopy What does SEM stand for? - Answers: scanning electron microscopy Which type of electron microscopy has a higher resolving power? - Answers: TEM Which type of electron microscopy provides a 3D image? - Answers: SEM It is ...
KieranKent55
Examen
Comparing Light Microscope Questions and answers 2023/2024
Comparing Light Microscope Questions and answers 2023/2024 What does TEM stand for? - Answers Transmission Electron Microscope What does SEM stand for? - Answers Scanning Electron Microscope What is the radiation source for a light microscope? - Answers Light bulb What is the radiation source for a TEM and SEM? - Answers Beam of electrons What produces a 2D image? - Answers TEM What produces a 3D image? - Answers SEM What wavelength is used for a light microscope? - Answers ...
KieranKent55
Examen
Cell process Description questions and ready answers 2023/2024
Cell process Description questions and ready answers 2023/2024 The study of cells has been limited by their small size, and so they were not seen and described until 1665, when Robert Hooke first looked at dead cells from an oak tree. His contemporary, Anton van Leeuwenhoek, crafted lenses; and with the improvements in optical aids, a new world was opened. Magnification and resolving power limit what can be seen. Explain the difference. - Answers -Magnification: Ratio of an object's image si...
KieranKent55
Examen
TEM VS SEM Electron Microscopes Questions and answers 2023/2024
TEM VS SEM Electron Microscopes Questions and answers 2023/2024 TEM - Answers Transmission Electron Microscope SEM - Answers Scanning Electron Microscope TEM - How does it work - Answers Electron passes through specimen SEM - How does it work - Answers Electron bounces off of specimen TEM - Image - Answers Image is 2D SEM - Image - Answers Image is 3D
KieranKent55
Examen
Tem Biology Of A Cell Questions And Answers 2023/2024
TEM BIOLOGY OF A CELL QUESTIONS AND ANSWERS 2023/2024 What is the advantage of using a TEM instead of an LM to study intracellular structure? - Answers TEM gives 1000x better resolution than a LM allowing for more detail to be seen. Name some shapes cells may exhibit - Answers cube, squamous, columnar, cylindrical, disc-shaped, or irregular form. Describe the three main structural features of a cell - Answers Plasma membrane, nucleus, and cytoplasm
KieranKent55
Examen
TEM Exam With 100% Correct Answers 2023
TEM Exam With 100% Correct Answers 2023
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