Concept explainers
To determine:
The reason that scientist think the discovered prokaryote might be archaeal.
Introduction:
Fundamentally in nature there are two different types of cells prokaryotic cells and eukaryotic cells. Prokaryotic cells are small in size. The average size is
To determine:
The way in which it can be proved that it is not bacterial.
Introduction:
Bacteria and archaea comes under prokaryotes which are living, fully functional and single celled organisms. Initially the domain Archaea was considered to be unique group of bacteria but in 1977 the Archaea came to be viewed as distinctive domain that distinguishes from bacteria on the basis of their biochemical characteristics.
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MASTERING MICROBIOLOGY TAXONOMY
- Why were Archaea originally thought to be simply unusual forms of Bacteria? What lines of evidence showed this domain to form a distinct branch on the tree of life?arrow_forwardA newly developed super chemical, Toxotene, is developed by Evil Science, Inc. While transporting their latest shipment across the Atlantic Ocean, the Toxotene container on the ship springs a leak, spraying Toxotene into the ocean. As an expert biologist, you are tasked with developing a plan to clean up the spill. Being an organic chemical, what type of bacterial species would you use to clean up the spill? Why?arrow_forwardWhich group of bacteria are missing a nucleus? 1. proteobacteria 2. green bacteria 3. cyanobacteria 4. gram positive bacteria 5.spirochetes 6. chlamydiaarrow_forward
- What leads microbiologists to believe the archaea are more closelyrelated to eukaryotes than to bacteria?arrow_forwardIt is 0.4 um in length, but that is all you know. What could you do to determine if this microbe was a bacteria or an archaea?arrow_forwardA scientist isolates a new species of prokaryote. He notes that the specimen is a bacillus with a lipid bilayer and cell wall that stains positive for peptidoglycan. Its circular chromosome replicates from a single origin of replication. Is the specimen most likely an Archaea, a Gram-positive bacterium, or a Gram-negative bacterium? How do you know?arrow_forward
- There are two types of prokaryotes: bacteria and____________________.arrow_forwardIf you were to design an own bacterial/archaeal species, what would be its characteristics (e.g. shape, arrangement,habitat, special internal and external structures, special “ability”, etc.) and what would be its scientific name?arrow_forwardWhy are archaea commonly referred to as extremophiles?arrow_forward
- What major group of prokaryotes generates oxygen by photosynthesis? Group of answer choices Spirochetes Cyanobacteria Proteobacteria Gram-positive bacteriaarrow_forwardRecently, a microbe that is able to digest cellulose was discovered in a hot spring with an average temperature of 95°C. This microbe most likely belongs to which of the following groups? A. Archaea B. Proteobacteria C. Cyanobacteria D. Spirochetesarrow_forwardWhich of the following statements is correct for archaea?(a) Archaea resemble eukaryotes in all respects.(b) Archaea have some novel features that are absent inother prokaryotes and eukaryotes.(c) Archaea completely differ from both prokaryotes andeukaryotes.(d) Archaea completely differ from prokaryotes Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.arrow_forward
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