ChengCh262728.docx - Chapter 26 Bacteria and Archaea...

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Chapter 26: Bacteria and Archaea Chapter 27: Eukaryotic Cells: Origins and Diversity Chapter 28: Being Multicellular Your Name : Section 26.1 Two Prokaryotic Domains Close your books/notes: Summarize the four main points on the material you just read in section 26.1 1. First point Bacteria carry DNA in plasmids which can replicate chromosomes. 2. Second point Bacteria do not/lack membrane bound organelles and cellular processes are usually carried out through proteins that float in the cytoplasm or in the membrane. Bacteria is also supported by a cell wall which is made of peptidoglycan, and is then made of amino acids. 3. Third point Horizontal gene transfer creates genetic diversity in bacteria is the process where bacteria basically exchange genetic material and there are a few ways this can occur. Conjugation where a bacteria forms a pilus and attaches it to another bacterial cell, transferring plasmids to the other cell. Transformation is when a bacteria cell dies and is released into the environment, where its genetic material is then taken up by another cell. 4. Fourth point Transduction is when genetic material is passed to another cell through the use of viruses. 5. Indicate how well you have learned the material in this section. Choose from the options below:
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I am __________% confident that I have learned the material I have just read in this section. ______ 0% confident ______ 20% confident ______ 40% confident _x_____ 60% confident ______ 80% confident ______ 100% confident Section 26.4 The Diversity of Bacteria Close your books/notes: Summarize the four main points on the material you just read in section 26.4 1. First point Proteobacteria are one of the most diverse groups of bacteria and are linked to a lot of natural processes such as the carbon cycle. 2. Second point Gram positive bacteria are called Streptomyces are used in medicine and over half the species of gram positive bacteria can kill bacteria and fungi and have provided us with cures towards diseases. 3. Third point 85% of bacteria genomes have experienced horizontal gene transfer which makes it extremely hard to create an accurate depiction of a phylogenetic tree of bacteria. 4. Fourth point
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Chapter 26: Bacteria and Archaea Chapter 27: Eukaryotic Cells: Origins and Diversity Chapter 28: Being Multicellular Cyanobacteria is found through deserts and the ocean and they include unicellular rods and filaments and can from specialized cells that can adapt to their environments.
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