Two-component system (TCS) allows an organism in adapting to changes in the environment. It is available mostly in prokaryotes but is also available to some eukaryotes. b) Review the evolution of TCS in eukaryote.
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q3 Two-component system (TCS) allows an organism in adapting to changes in the environment. It is available mostly in prokaryotes but is also available to some eukaryotes.
b) Review the evolution of TCS in eukaryote.
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- q3 Two-component system (TCS) allows an organism in adapting to changes in the environment. It is available mostly in prokaryotes but is also available to some eukaryotes.a) Justify the importance of TCS.Describe the Theory of Endosymbiosis. a) Briefly define the Endosymbiotic Theory. 2 pts,b) Explain why the Theory of Endosymbiosis is considered a “theory” and not a “hypothesis.” 3 pts,c) Provide a description of eukaryotic and prokaryotic cells, including at least 4 similarities and 4 structural differences. 4 pts,d) Describe the sequence of events with anaerobic ancestral proto-eukaryotes and aerobic prokaryotes that led to the formation of mitochondria and chloroplasts inside eukaryotic cells. (Be sure to define aerobic and anaerobic respiration.) 6 pts,e) Explain how each, the anaerobic ancestral proto-eukaryotes and aerobic prokaryotes, benefited from the relationship. 4 pts,f) Describe 7 pieces of evidence for this scientific theory. Some of this evidence will consist of a list of similarities between mitochondria characteristics and bacteria characteristics. Along with this list of similarities, explain HOW the characteristics are similar. 10 pts,g) The Endosymbiotic Theory…The hypercycle model explains which of the following? A) How the evolutionary transition from prokaryotic to eukaryotic cells through acquisiton of membrane bound organelles. B) How viruses first originated alongside cellular life through a hyper replicating RNA lineage. C) How individual replicating molecules like RNA, DNA, and proteins entered a molecular mutualism and became encapsulated forming protocells. D) How cycles of heat and electricity experimentally lead to the formation of amino acids in the lab.
- (if anyone please help me with all these questions) 2. As eukaryotic cells become more specialized, the nucleus is NOT important as the site of a) DNA synthesis, b) changes in the regulation of genes, c) protein synthesis, d) the transcription of mRNA for protein synthesis, e) DNA mutation. 3. In the evolution of the eukaryotic cell, these cells have key changes that include which of the following: a) These cells reproduce by copying their DNA perfectly each generation. b) They have their DNA in the nucleoid area. c) have adapted the mesosome membrane system of the prokaryote to form a nucleus and an endoplasmic reticulum. d) each new type on new eukaryote cell has its own mesosomes e) none of these are true. 4. The evolution/development of the skeletal system found in the Deuterostomes, is made up of two molecules, Ca+2PO4-2 and collagen These molecules are produced released from by a specialized type of stem cell. Therefore, one would expect that these stem cells perform which…All of the following statements are true about the3-domain classification system EXCEPT:(a) The three domains are Bacteria, Archaea, and Eukarya.(b) Lateral gene transfer has forced us to rethink our do-main model from a “tree of life” to a “shrub of life.”(c) Domains are higher than the category of kingdoms.(d) Compared to Bacteria, Archaea inhabit the same en-virons and have the same amount of peptidoglycan intheir cell walls.(e) All of the above are true.Q4: What is the antibiotic that is used in this experiment presented in the Antibiotic-Resistant Bacteria Connect Activity? Penicillin Streptomycin E. coli Agar Q11: According to the Connect activity, analogous structures do not offer evidence of evolution. However, the presence of analogous structure in two organisms does actually provide us with information about their ancestory. What is this information? the organisms share a common ancestor prior to the evolution of the structure the organisms share a common ancestor after the evolution of the structure the organisms can share no common ancestor.
- Describe two adaptations that enable prokaryotes to survive in environments too harsh for other organisms.VISUALIZE Draw a simple sketch illustrating the way in which aerobic bacteria are hypothesized to have become incorporated into an original prokaryotic host cell.The membrane structure that eventually evolved into the double nuclear membrane of the eukaryotes first appears in the: A) Chemical evolution, B) Prokaryotes, C) Eukaryotes, D) the protocell, E) Plants.
- In comparing bacteria, archaea, and eukaryotes, which statement below among A - D is false? A) O the members of two of these three groups comprise cells that lack a nuclear membrane B) O archaea and eukaryotes share some similarities in the componeents of gene expression C) O having diverse types of metabolism is a feature of the members of archaea and bacteria D) Oa cytoplasmic membrane is a feature shared by all the cells in these three groups E) OA-E are all true. The endosymbiotic hypothesis for the origin of mitochondria from gram-negative prokaryotes is supported by all of the following lines of evidence except: A. the presence of enzymes for the Krebs cycle, electron transport, and oxidative phosphorylation the presence of mRNA, tRNA, and rRNA similar to that of the a-proteobacteria the presence of 80s ribosomes, consisting of 40s and 60s ribosomal subunits the presence of circular DNA resembling that of aerobic proteobacteria their use of binary fission rather than mitosis during cell divisionEvolutionary microbiologists developed a theory about a common ancestor for all eukaryotic cells. Below is a model of the theorized changes during the origin of eukaryotic cells. Prokaryotes are not capable of phagocytosis, or engulfing outside particles by creating a pocket in the cell membrane. Which of the following changes in early prokaryotes could be predicted to result in the emergence of eukaryotic organisms? A - the development of genetic transfer mechanisms in prokaryotes B - the evolution of predatory or parasitic relationships in prokaryotes C - the emergence of collections of cells functioning together in prokaryotes D = the expansion of internal structures to support larger individual cells in prokaryotes