https://padlet.com/hjmstrawberryjam/celltech What technology have we had to determine the cell structure and function? en-us 2020-02-11 21:51:56 UTC 2025-12-09 15:09:32 UTC hello@padlet.com http://i.ebayimg.com/images/i/190804640076-0-1/s-l1000.jpg hjmstrawberryjam https://padlet.com/hjmstrawberryjam/celltech/wish/444034203 1) When was it made?
2) Brief description of how it works?
3) What can it see?
4) Benefit to society?]]> 2020-02-11 21:59:01 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444034203 hjmstrawberryjam https://padlet.com/hjmstrawberryjam/celltech/wish/444061283 It was first discovered in 1845]]> 2020-02-11 23:19:36 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444061283 https://padlet.com/hjmstrawberryjam/celltech/wish/444705941
2) ]]> 2020-02-12 22:34:19 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444705941 https://padlet.com/hjmstrawberryjam/celltech/wish/444706401 1) Light microscopes date at least to 1595
2) Creates a magnified image through a series of glass lenses.
3) You can see bacteria and some organelles like mitochondria POWER HOUSE OF THE CELL
4) They were used to study living things and their cells further our knowledge in biology.]]> 2020-02-12 22:35:28 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444706401 https://padlet.com/hjmstrawberryjam/celltech/wish/444706665 Invented in 1937 by Manfred von Ardenne. ]]> 2020-02-12 22:36:05 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444706665 https://padlet.com/hjmstrawberryjam/celltech/wish/444706684 It was made in 1948]]> 2020-02-12 22:36:08 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444706684 https://padlet.com/hjmstrawberryjam/celltech/wish/444706810 2) fires a beam of electrons through a specimen to produce a magnified image of an object. it uses a high voltage electron beam in order to create an image.
3) thin specimens that electrons can pass through generating a projection image
4) it magnifies specimens to a much higher degree than an optical microscope. It can magnify 10,000 times and more, which allows scientists to see extremely small structures.]]> 2020-02-12 22:36:22 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444706810 https://padlet.com/hjmstrawberryjam/celltech/wish/444706961 1) 1950s
2) Works by passing a laser beam through a light source aperture which is then focused by an objective lens into a small area on the surface of your sample and an image is built up pixel-by-pixel by collecting the emitted photons from the fluorophores in the sample.
3) Obtains high res images of small sections of a specimen. 
4) It has allowed scientists to make detailed photos of sections of a specimen.]]> 2020-02-12 22:36:44 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444706961 https://padlet.com/hjmstrawberryjam/celltech/wish/444707052 Answer to 3: the light microscope can see most bacteria, plant and animal cells, and ant eggs (although you can see ant eggs with the naked eye too)


]]> 2020-02-12 22:36:58 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444707052 https://padlet.com/hjmstrawberryjam/celltech/wish/444707211 An X-ray microscope uses electromagnetic radiation in the soft X-ray band to produce magnified images of objects. Therefore, an X-ray microscope exposes film or uses a charge-coupled device (CCD) detector to detect X-rays that pass through the specimen.]]> 2020-02-12 22:37:19 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444707211 https://padlet.com/hjmstrawberryjam/celltech/wish/444707444 Electron microscopes work differently to normal microscopes as they replace the source of light that shone up towards the specimen and lens by an beam of very fast moving electrons. The specimen on the stage is prepared by creating a vacuum chamber so that the electrons cannot travel far. The lense is a series of coil shaped electromagnets that the electron beam travels through. The coils bend the electron beams the same way. The image is formed as a photograph, or electron micrograph, that is seen as an image or TV screen. ]]> 2020-02-12 22:37:55 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444707444 hjmstrawberryjam https://padlet.com/hjmstrawberryjam/celltech/wish/444707932 Helped us see cells for the first time. Can help us see living and dead microorganisms]]> 2020-02-12 22:39:05 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444707932 https://padlet.com/hjmstrawberryjam/celltech/wish/444708116 Charged Coupled Device detector is used to see the insides of a solid opaque object]]> 2020-02-12 22:39:39 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444708116 https://padlet.com/hjmstrawberryjam/celltech/wish/444708220 1) 1950s
2) They provide a high-resolution image with all areas in focus throughout the field of view
3) ]]> 2020-02-12 22:39:54 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444708220 https://padlet.com/hjmstrawberryjam/celltech/wish/444708265 1956]]> 2020-02-12 22:40:02 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444708265 https://padlet.com/hjmstrawberryjam/celltech/wish/444709207 You don't have to prepare the specimen to look at it]]> 2020-02-12 22:42:24 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444709207 https://padlet.com/hjmstrawberryjam/celltech/wish/444710797 The SEM is used to examine the surface composition of cells and other products. ]]> 2020-02-12 22:46:28 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444710797 https://padlet.com/hjmstrawberryjam/celltech/wish/444713042 2020-02-12 22:52:57 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444713042 https://padlet.com/hjmstrawberryjam/celltech/wish/444713143 1) 1845
2) The basic task of the fluorescence microscope is to let excitation light radiate the specimen and then sort out the much weaker emitted light from the image. The radiation collides with the atoms in your specimen and electrons are excited to a higher energy level. When they relax to a lower level, they emit light.
3) Living cells and tissues
4) Furthered our knowledge about cells.]]> 2020-02-12 22:53:14 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444713143 hjmstrawberryjam https://padlet.com/hjmstrawberryjam/celltech/wish/444713322 It is still in it's early stages, but it provides good magnification and depth of field without damaging the specimen]]> 2020-02-12 22:53:49 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444713322 https://padlet.com/hjmstrawberryjam/celltech/wish/444713470 The SEM microscope allowed for the images to be seen in 3D instead of 2D. This benefits further research into cells and their development. ]]> 2020-02-12 22:54:17 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444713470 https://padlet.com/hjmstrawberryjam/celltech/wish/444716427 the helium ion microscope works similarly to an electron microscope. it fires charged helium ions out through the lens and onto the object being viewed. the ions will then bounce off of the object and into a range of processors situated around the object. the processor then detect aspects such as angle t which the helium ions hit the processors and time taken to display an image of the object on a screen. ]]> 2020-02-12 23:03:49 UTC https://padlet.com/hjmstrawberryjam/celltech/wish/444716427