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St Cloud BIOL 152 - Bacteria Reprduction and Protista

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BIO 152 1st Edition Lecture 6Bacteria Reproduction and ProtistaI. Bacteria reproduction A. Means of reproduction 1. No sexual reproduction 2. Binary fission3. Conjugation bridge B. Bacteria morphology1. Bacillus rod shape (most common)2. Coccus (spherical)3. Spirillum (spiral-shaped) C. Antibiotics 1. Kill bacteria in a variety of ways D. Classification1. Hans Christian Grama. Bacteria are exposed to a purple dye E. Cyanobacteria 1. Structurea. Relatively largeb. Variety of organizationc. Gliding motility d. Some cellular differentiatione. Most have thylakoidsf. Peptidoglycan cell wallF. Photosynthesis 1. 2 photosystemsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.2. Pigments chl. a and b3. Carbon fixation: Calvin cycle4. Food StorageG. Ecology1. Extremely important2. Ancient fossil record 3. Oxygenic photosynthesis 4. Nitrogen fixation5. Bloom formingII. Protista A. What are protists 1. Non monophyletic 2. Less diverse than prokaryotes3. Morphologically more diverse 4. Some reproduce asexually, many reproduce sexually 5. Single celled organisms 6. Not adapted to a life on dryland 7. Most aquatic living in fresh water B. Protista Include1. Algae 2. Protozoans 3. Some fungus like forms C. Protozoa 1. Heterotopic (animal like) 2. Symmetrya. Asymmetrical b. Radial symmetryc. Bilateral symmetry D. Structure and organelles1. Cell membrane2. Cytoplasma. Ectoplasm- outer semi solid regionb. Endoplasm- inner fluid region 3. Nucleus a. Macronucleus- large nucleus that controls metabolic activities b. Micronucleus- involved in reproductionE. Autotrophic1. Capable of making their own food 2. Have chloroplast for photosynthesisF. Heterotrophic1. Must consume other forms of energy 2. Cannot make their ownG. Contractile vacuoles1. Involves in water regulation2. Pumps excess water out of the cellH. Locomotion 1. Pseudopodia 2. Flagella3. CiliaI. Asexual reproduction 1. Fissiona. When individual spits into 2 identical individuals – Binary fissionb. When smaller individual buds off larger parent- Budding J. Sexual reproduction1. Conjunction a. 2 individuals exchange micronuclei b. Results in genetic mixing and new genotypes K. Phylum1. Rhizopodaa. Unicellular, Cosmopolitan, pseudopia, some


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