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Figure 1.1 is a transmission electron micrograph (TEM) image of a chloroplast. Explain why this image was made using a transmission electron microscope rather than a light microscope. How did you do?
Explain how electron microscopes work. An electron beam is passed through/enters the thin sample. Denser parts of the sample absorb more electrons. Explain the differences between a transmission electron microscope (TEM) and a scanning electron microscope (SEM).
Describe the structure and function of a ribosome. Formed of protein & rRNA free in cytoplasm or attached to ER. - Site of protein synthesis via translation: - large subunit: joins amino acids - small subunit: contains mRNA binding site
May 29, 2024 · Both a transmission electron microscope (TEM) and a scanning electron microscope (SEM) can be used to view the same cell. However, the images formed will be different. Compare the resolutions of these microscopes and the images formed by them.
Summary notes and past exam questions by topic for AQA Biology AS and A-Level Topic 2 - Cells.
The basic subcellular structures of an eukaryotic cell as seen by transmission electron microscopy (TEM). Try to identify the cell borders and nuclei. Switch between the grayscale and color images (see above) to help identify the following structures: Plasma Membranes.
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Are Tem and SEM the same microscopy techniques?
What are TEM & SEM MCQs?
What is the difference between TEM and Sem?
1. TEM and SEM are the same microscopy techniques. a) True. b) False. View Answer. 2. The resolving power of TEM is derived from _______________ a) electrons. b) specimens. c) power. d) ocular system. View Answer. 3. The cathode of transmission electron microscope consists of a ____________________ a) tungsten wire. b) bulb. c) iron filament.
