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cell classifications
Title: cell classifications
Category: Science & Technology
Details: Words: 332 | Pages: 1.4 (approximately 235 words/page)
cell classifications
A variety of classification systems are used to order bacteria. Bacteria are described as prokaryotes, organisms whose cells lack nuclei, to distinguish them from eukaryotes, organisms such as fungi, plants, and animals, whose cells contain nuclei. Because of this fundamental difference, bacteria are placed in their own kingdom, Kingdom Monera, also called Kingdom Prokaryotae.
Recent molecular studies have found that a small group of organisms now known as the archaebacteria, formerly classified with bacteria because …showed first 75 words of 332 total…
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…showed last 75 words of 332 total…by the cyanobacteria light energy are converted to the chemical energy of glucose. Chemoautotrophs, including the soil bacteria nitrobacteria, derive their energy from inorganic compounds such as hydrogen sulfide and use the energy to power the cell’s activities. The remaining bacteria are heterotrophs, organisms that obtain carbon by ingesting organic molecules released from decaying organisms or by preying on other bacteria, Photoheterotrophs gain energy from light, and chemoheterotrophs obtain energy from organic molecules.
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