eukaryotic cells
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Eukaryotic Cells
Miss Fletcher
January 2013
http://g11-biob1-2011-12.wikispaces.com/(a)+Eukaryotic+cells
2.3.1 Draw, label, annotate and identify organelles in a diagram of the ultrastructure of a liver cell.
Ribosomethe site of protein synthesis
2.3.5 State three differences between plantand animal cells.
Plant cells Animal cells
Cellulose cell wall is present Cell wall absent, cellulose in any form is also absent
Vacuoles are large and prominent Vacuoles absent and if present they are small and temporary and associated with excretion or secretion
Reserve energy source in the form of starch
Reserve energy form is glycogen
Centrioles absent but polar caps participate in cell division instead
Centrioles present
Chloroplasts present Chloroplasts absent
2.3.6 Outline two roles of extracellular components.
Plant cell wall
http://micro.magnet.fsu.edu/cells/plants/cellwall.html
• Found around all plant cells
• Composed of cellulose.• Maintains the shape of
the cell.• Provides structural
support against the force of gravity.
• Prevents excessive uptake of water by the cell
Basement membrane in the kidney
http://www2.niddk.nih.gov/NIDDKLabs/Glomerular_Disease_Primer/NormalKidney.htm
http://click4biology.info/c4b/2/cell2.3.htm#electron
• Basement membrane: a secretion formed from collagen and glycoproteins joined together by a third 'linkage' protein. Their exact composition varies form tissue to tissue.
• Support: the membrane surrounds the tissues of lines ducts. It provides structural support for the integrity of the tissue or organ. Usually found as the basal lamina or basement membrane of epithelial cells.
• Filter : The basement membrane of the kidney glomerulus provides the effective barrier for ultrafiltration
2.3.6 Outline two roles of extracellular components.
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