BIO 1140 Final: Ultimate Biology 1140 Final Exam Question Set.docx
27 Oct 2014
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Distinguish between a vacuole and a vesicle. (2 marks) A vesicle typically contains proteins and is used to shuttle proteins between organelles or to the plasma membrane for export, whereas a vacuole is a storage organelle that often contains water or metabolites. Identify a model organism by both scientific and common names, and comment on its usefulness or value (i. e. by virtue of what characteristics has it come to be popular as a model organism?). (3 marks) The common house mouse, mus musculus, is used as a model for humans in studies related to the physiology and disease states of humans. As mammals, mice share many characteristics in common with humans. They are also small and relatively easy to maintain in a lab setting. Discuss the strategies employed by eukaryotic cells to overcome the limitations that constrain prokaryotic cells to sizes that are typically an order of magnitude smaller. (4 marks)
