LIFESCI 1 Midterm: Midterm 2 study guide
Document Summary
Ls 1 spring 2014 midterm 2 review sheet. Week 4: chapter 27 eukaryotic cells, and chapter 28 being multicellular. The purpose of eukaryotic evolution is to showcase increased efficiency in eukaryotic function. Things like acidity localization (how lysosomes can degrade internal cell compounds without disrupting the cell environment) or genetic processing (golgi apparatus) are not possible with the lack of compartmentalization in prokaryotic cells. There are 4 main general life cycles in eukaryotes, 2 unicellular cycles and 2 multicellular cycles. In unicellular cycles, one is haploid-dominant and the other is diploid-dominant. This just means that most of the time spent in a haploid-dominant cycle is haploid-based. Referencing figure 27. 3, the unicellular cycles closely resemble a fungi-like cycle. In multicellular life cycles, there are both animals and vascular plants. The difference here is the order in which gametes form. In animals, we have the luxury of forming gametes from meiosis that are capable of fertilizing right away via sperm-egg fusion.
