B2 - Cells and microscopes 0.0 / 5 ? BiologyCells, tissues and organsGCSEEdexcel Created by: Cellis1Created on: 14-03-17 20:18 What organelles does an animal cell consist of? Nucleus, cell membrane, cytoplasm, mitochondria, ribosome 1 of 11 What is the role of the mitochondria? That is the site of respiration in the cell. 2 of 11 What is the role of the ribosome? That is the site of protein synthesis. 3 of 11 What is the role of the chloroplast in a plant cell? The chlorophyll in the chloroplast absorbs sunlight for photosynthesis. 4 of 11 What is the role of the large vacuole in a plant? This is the space filled with sap, to keep the plant rigid. 5 of 11 Does a bacterial cell have a nucleus? NO!! It has plasmid and chromosomal DNA. 6 of 11 What is the flagellum of a bacterial cell? Not all bacterial cells have this but it is the tail that allows it to move. 7 of 11 What is an electron microscope? An electron microscope is a microscope that uses beams of electrons to produce a magnified image. 8 of 11 What are the similarities of an electron and light microscope? They both produce a magnified image, the are both used for biological research and the specimen being observed needs to be treated carefully. 9 of 11 What are the differences between an electron and light microscope? Electron produce clearer and larger images, light microscopes are cheaper and are lighter. 10 of 11 What is the formula for the length of magnification? Length of magnification = length of object x magnification 11 of 11
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