Compare and contrast the three domains identified by Woese and Fox: Eukarya, Bacteria, and Archaea
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With respect to cell type, organisms in Eukarya have eukaryotic cells and the characteristics that go with this cell type, such as a nucleus and membranous organelles. Bacteria and Archaea both have prokaryotic cells lacking nuclei and membranous organelles. All three have different ribosomal RNA sequences found in the small subunit of their ribosomes that are characteristic for the domain, which is an important tool for categorizing organisms. All three have cell membranes; however, they differ in the lipids found in the cell membrane.
Bloom's Taxonomy: Analysis
Section: Classification and Identification of Microorganisms
Learning Outcome: 4.22
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What is common to all of the oxidation reactions in the Citric acid cycle?
A. They are all decarboxylation reactions. B. They all lead to substrate-level phosphorylation of ADP to generate ATP. C. They all lead to the generation of NADH. D. They are all characterized by a loss of electrons from an organic molecule coupled to the reduction of an electron acceptor.
During which cellular process do all three forms of RNA associate?
A. protein synthesis B. ribosome assembly C. formation of the nucleolus D. chromatin formation
Answer the following questions true (T) or false (F)
1. Trypanosoma brucei is transmitted to animals and people by a bloodsucking fly. 2. Rabies is a rare zoonosis in humans but common in many other species of mammal. 3. Fungi rarely infect the central nervous system.
The semiliquid matrix of the nucleus is called the (cytoplasm/nucleoid/nucleoplasm)
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