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cell structure

QuestionAnswer
What are prokaryotic cell walls made of? peptidoglycan (protein/sugar)
What is DNA in prokaryotes like? circular ring
What are the prokaryotes that exist today? blue-green algae, bacteria
What are the components of eukaryotic cytoskeletons? microtubules, microfilaments, intermediate filaments
What are microtubules? thick rods, outside cell, protein tracks organelles slide on
What are microfilaments? Thin rods, made of actin (protein), perimeter of cell to withstand strain
What are intermediate filaments? Protein network beneath membrane for structure (along with microfilaments)
What are the membranes in mitochondria? The inner membrane has infoldings (the cristae) which has cellular respiration enzymes embedded. The chemical reactions of respiration take place in mitochondrial matrix. Outer membrane is highly permeable to small solutes.
What is the difference between rough and smooth ER? Rough - protein synthesis, smooth - moves proteins and packages into vesicles for golgi, lipid synthesis
What's the golgi? packages proteins for export, site of protein modification
What are lysosomes? digest things the cell no longer needs, segregates destructive enzymes from cytoplasm, acidic
What are chloroplasts? make food, the site for photosynthesis, built from two membranes (external boundary + stacked inner)
What is chlorophyll? in chloroplasts, green pigment that absorbs sunlight
Created by: yanguin
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