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Chapter 5
the cell
| Question | Answer |
|---|---|
| why do cells have to maitain a small size? | come only from division of preexisting cells |
| what is cell fractionation? what are the ways to break down the plasma membrane? | takes cells apart and seperates the major organelles from one another / chemicals beads sonication and cell bomb |
| what are the differences and similarities between prokaryotic and eukaryotci cells? | prokaryotes- no boundary membrane, nucleiod, domains archaea and bacteria / eukaryotci boundary membrane, true nucleus, domain eukarya |
| what are the differences and similarities between animal and plant cells | chloroplast only in plant cells, cell walls wit cellulose are plant specific, central vacuoles are in plant cells only, centrioles are animal specific |
| list all of the organelles discussed in class and know their functions | |
| which types of cells would have a high concentration of RER and SER? | endoplasmic reticulum |
| what components make up the cytoskeleton and their functions? | interconnected protein fibers and tubes, microfilaments, intermediate fibers, microtubules |
| know the different types of cellular junctions and their functions | anchoring junctions "weld" cells together, tight junctions prevent small ion movement, gap junctions allow passage without membrane control |