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- Many pelagic Bacteria can use light energy but arenot considered “phototrophs” in the same sense ascyanobacteria or purple bacteria. Explain.Cyanophora paradoxa is a eukaryotic organism that incorporates cyanobacteria, aerobic photosynthesizing prokaryotic organisms, into its cells. Describe the benefits that both species derive from this relationship.. The light-sensitive, protein component of the complex which pumps hydrogen ions out of the cell when exposed to sunlight (from the halophilic archaeobacterium Halobacterium halobium) is called: the photosynthetic reaction center bacteriorhodopsin retinal cytochrome c bacteriochlorophyll
- The function of the _____________ complex in photosynthesis is similar to the Q cycle in mitochondria.Mitochondria likely originated froma. archaeab. invaginations of the cell membranec. rickettsiasd. cyanobacteriaFor my cell molecular biology, we had to explain how lithotrophic and organotrophic bioprocesses, occurring under anaerobic conditions, contribute to the carbon cycle. Any help to how to solve this problem is greatly appreciated! Thanks
- The Prokaryotes are associated with the following structures EXCEPT: A) ribosomes, B) Lysosomes and liposomes, C) a nucleoid area, D) mesosomes, E) chlorophyll.44. ______________ is the process by which organisms fix carbon into a sugar from carbon dioxide. Nitrogen fixation Carbon fixation Cellular respiration Phosphorylation PhotosynthesisMitochondria most likely evolved from_____________.a. a photosynthetic cyanobacteriumb. cytoskeletal elementsc. aerobic bacteriad. membrane proliferation
- The genus Ferroplasma consists of a few species of acid-loving archaea. One species, F. acidarmanus, was discovered to be the main component of slime streamers (a type of biofilm) deep inside an abandoned California copper mine (Figure 4.11A). F. acidarmanus cells use an ancient energy-harvesting pathway that combines oxygen with ironsulfur compounds in minerals such as pyrite. This reaction dissolves the minerals, so groundwater that seeps into the mine ends up with extremely high concentrations of metal ions such as copper, zinc, cadmium, and arsenic. The reaction also produces sulfuric acid, which lowers the pH of the water around the cells to zero. Despite living in an environment with a composition similar to hot battery acid, F. acidarmanus cells maintain their internal pH at a cozy 5.0. Thus, researchers investigating Ferroplasma metabolic enzymes were surprised to discover that most of the cells enzymes function best at very low pH (Figure 4.11B). A. Deep inside one of the most toxic sites in the United States: Iron Mountain Mine, in California. The water in this stream, which is about 1 meter (3 feet) wide in this photo, is hot (around 40C, or 104F), heavily laden with arsenic and other toxic metals, and has a pH of zero. Slime streamers growing in it are a biofilm dominated by a species of archaea, Ferroplasma acidarmanus. B. pH profiles of four enzymes isolated from F. acidarmus. Researchers had expected these enzymes to function best at the cells cytoplasmic pH (5.0). What does the dashed line signify?True or false Some prokaryotes can live in oxygen-free environments such as water logged soil, in ponds where water does not flow, and in the intestines of animals that transfer glucose to NADPH and then pass the electrons down the electron transport chain that is joined to ATP synthesis by chemiosmosis.You are conducting a study of comparing human, chlamydomonas and Cyanobacteria. Which is a protein found in both chlymydomoans and humans but not in Cyanobacteria. a) mitochondrial receptor protein b) atp synthase c) citrate synthase of citric acid cycle d) ribosome protein
