BIO 1130 Lecture 6: BIO1130 Keywords for Lecture 6

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20 May 2014
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BIO 1130 Full Course Notes
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Arrangement of microtubules for the formation of flagella. The regular alternation of mode of reproduction in the life cycle of an organism such as the alternation between diploid (sporophyte) and haploid (gametophyte) phases in plants. Spends an equal amount of time in diploid and haploid states. Lifestyle of choice for plants; photosynthetic nutritional strategy. 1) plant (eg. fern) undergoes meiosis to make spores (2n). 2)spores undergo mitosis to make haploid cells called gametophytes. 4) gametes undergo fertilization to make zygotes which grow with mitosis back to plants. Uses a different system of motors (not dyenin/kinesin) called myosin molecular motors that move along actin. Environment of amoeboid cells build actin fibers so amoeba can convert cytoplasm between two different states, endoplasm into ectoplasm at the front, while moving. The anterior end of the amoeba can regenerate, so the organism has a net movement forward from the endoplasm shooting out and flowing backwards.

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