converted to oxygen and water‚ as follows: 2 H2O2 → 2 H2O + O2 Although this reaction occurs spontaneously‚ enzymes increase the rate considerably. At least two different enzymes are known to catalyze this reaction: catalase‚ found in animals and protists‚ and peroxidase‚ found in plants. A great deal can be learned about enzymes by studying the rates of enzyme-catalyzed reactions. The rate of a chemical reaction may be studied in a number of ways including: • measuring the rate of appearance of a
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entirely of parasites. Apicomplexans are distinguished by their unique method of entering host cells. Apicomplexans are a monophyletic group composed entirely of parasitic species. This species is the best known and probably the largest of parasitic protists. There are about 4‚000 known species‚ but this is certainly just an understatement of the actual number. Of the described species seven genera infect humans; these include the following: Plasmodium‚ Babesia‚ Cryptosporidium‚ Isospora‚ Toxoplasma
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Evolutionary trees convey a lot of information about a group’s evolutionary history. Biologists are taking advantage of this by using a system of phylogenetic classification. In contrast to the traditional Linnaean system of classification‚ phylogenetic classification names only clades. For example‚ a strictly Linnaean system of classification might place the birds and non-Avian dinosaurs into two separate groups. However‚ the phylogeny of these organisms reveals that the bird lineage actually
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Text Format (.rtf) for best compatibility. Experiment 1: Labeling (consult the Lab 3 Introduction for more details) Bacteria: Nucleoid region‚ cell wall‚ plasma membrane‚ ribosomes‚ flagella Protist: Macronucleus‚ micronucleus‚ plasma membrane‚ cytoplasm‚ contractile vacuole Plant Cell: Nucleus‚ cell wall‚ plasma membrane‚ cytoplasm‚ chloroplast‚ mitochondria‚ vacuoles Animal Cell: Nucleus
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CHAGAS DISEASE Trai Boslet‚ Richard Tuff Bio 181L What is the disease? Chagas disease is an inflammatory and infectious disease that is caused by a parasite called trypanosoma cruzi. Trypanosoma cruzi is transmitted by an insect factor only in the Americas. Most cases of this disease are found in Latin America. Also called American trypanosmiasis‚ the chagas disease can effect anyone‚ but is more common to effect children. If the chagas disease is left untreated the infection will
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In fact‚ plankton are scientifically unclassified.Within the broad term of Plankton‚ lies a diversity ranging from protists‚ single celled plankton‚ to Phytoplankton‚ plants that contribute heavily to the marine ecosystem‚ to Zooplankton‚ animal larvae who grow out of the plankton classification with age (Encyclopedia). Meanwhile mankind belongs to the overarching species
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nor a decomposer would most likely be classified in _______ 1. Theory 2. Controlled experiment 3. falsifiable 4. deductive reasoning 5. hypothesis 6. inductive reasoning 7. scientific inquiry 8. Domains 9. bacteria 10. archaea 11. Eukarya 12. protists 13. Fungi 14. Plantae 15. Animalia 16. organ system 17. algae‚ bird ‚ earthworm 18. internal digestion of cellular garbage by a structure called a lysosome 19. eating food 20. all organisms share a common genetic code 21. one of the kingdoms
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Term | Definition | Systematic Biology / Systematics | * Study of the biodiversity * Quatitative science that uses the characteristics of living and fossil organisms(traits) to infer relationships between organisms over time | Taxonomy | * Branch of systematic biology * Process of identifying‚ naming and organising biodiversity into related categories | Taxon | General name for a group containing an organisms or groups of organisms that exhibit a set of shared traits | Classification
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Chapter 2.0 Cell Structure and Functions Prokaryotic and Eukaryotic cell Cell are grouped into tissue Cell as a unit of life Prokaryotic and eukaryotic cells Structure and functions: cell membrane Microscopic and structures of organelles plant and animal cell Cell prokaryotic theory eukaryotic Plasma membrane Organeles - Nucleus - mitochondria Plant cell Animal cell - ruogh and smooth endoplasmic reticulum -Golgi body --ribosome --lysosome compare --chloroplast --centriole animal plant
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Week 2 Quiz Part 1 of 2 - Part I 20.0/ 20.0 Points Question 1 of 12 2.0/ 2.0 Points Which of the following groups of organisms is not prokaryotic? A.Archaea B.Bacteria C.Eubacteria Correct D.Eukarya Answer Key: D Question 2 of 12 2.0/ 2.0 Points The shape of a bacterial cell is determined (and maintained) by the A.cell membrane Correct B.cell wall C.capsule D.slime layer Answer Key: B Question 3 of 12 2.0/ 2.0 Points
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