BIO 110-14
Exam 5 Homework
Chapter # 14
1. What are the five kingdoms and give a brief description of each kingdom?
-Monera- single celled prokaryotes; bacteria. Protista- Mostly single celled eukaryotes. Fungi- Multicellular eukaryotes that feed by extracellular digestion and absorption. Plantae- Multicellular photosynthetic autotrophs; producers. Animalia- Diverse multicellular heterotrophs.
2. Who developed the binomial system of nomenclature (genus and species)?
-Binomial System of Nomenclature devised by Carl Von Linne.
3. List the levels of classification beginning with kingdom and ending with species.
-Kingdom, Phylum, Class, Order, Family, Genus, and Species.
Chapter # 15 and # 16
1. How are prokaryotic cells characterized? Explain each in detail.
-No membrane-bound nucleus, Single chromosome (circular DNA), cell wall in most species, prokaryotic fission, metabolic diversity.
2. What structures are found in prokaryotic cells?
-Structures found in prokaryotic cells are cytoplasm, plasma membrane, ribosomes, cell wall composed of peptidoglycan, glycocalyx, flagellum, and pili.
3. Give examples of bacteria classified as Archaebacteria and Eubacteria.
-Archaebacteria: Methanogens (methane makers), Extreme halophiles (salt lovers), and Extreme thermophiles (heat lovers). Eubacteria: Deer ticks, typical rash, Spirochete that causes Lyme disease. Eubacteria includes most familiar bacteria.
4. What method do prokaryotic cells use to reproduce and what is the end result?
-Prokaryotic Fission is a mechanism for cell replication. It results in two genetically identical daughter cells.
5. What is a plasmid?
-A Plasmid is a self-replicating circle of DNA that has a few genes and can be passed from one cell to another.
6. What two components compose a virus?
-Consists of protein wrapped around a nucleic acid core. Genetic material is DNA or RNA and the Coat is protein.
7. Why is a virus nonliving?
-A virus is nonliving because it is a non-cellular