Microbiology 2215 CSCC Exam 1 Study Questions and Answers 2024

What is microbiology? - The study of living things to small to be seen without magnification What are microorganisms (microbes)? - Organisms to small to be seen with the naked eye What are the major groups of microorganisms? - 1. Bacteria 2. Algae 3. Protozoa 4. Helminths 5. Fungi 6. Viruses Prokaryotes with peptidoglycan in their cell walls and circular chromosomes are classified as ______. - Bacteria Photosynthetic plant-like organisms are classified as ______. - Algae Single-celled eukaryotic organisms are classified as ______. - Protozoa Parasitic inverterbrates(worms) are classified as ______. - Helminthes Non-cellular, parasitic, protein-coated genetic elements that can infect all living things including other microorganisms are classified as ______. - Viruses What appeared first: prokaryotes or eukaryotes? - prokaryotes What are the three domains of living things? - 1. Bacteria 2. Archaea 3. Eukarya Bacteria and archaea are both classified as what type of cell? - prokaryote Which types of cells utilize binary fission to replicate? - Bacteria and archaea What cell do we see prominent shapes such as rod-shaped, spherical and spiral? - Bacteria What types of cell are the most common type in human infection? - Bacteria What features distinguish archaea from baceria? - -Chemical composition of cell wall -Archaea are usually found in extreme environments (extremophiles) What are key features of eucarya? - -Membrane bound nucleus -Organelles -Single and/or multicellular What is the cellular organization of Algae? - Single or multicellular What is the cellular organization of Fungi? - Single or multicellular What is the cellular organization of protozoa? - Single-celled What is the source of energy for algae? - Sunlight What is the source of energy for fungi? - Organic compounds What is the source of energy for protozoa? - Organic compounds What is the size of algae? - Microscopic or macroscopic What is the size of fungi? - Microscopic or macroscopic What is the size of protozoa? - Microscopic What is the naming system utilized to name organisms?> - Binomial nomenclature What is the first word used in binomial nomenclature? - Genus What is the second word used to name with binomial nomenclature? - Species What are the three non-living infectious agents of the microbial world? - 1. Viruses