MIC 205 Exam 1 questions with correct answers

Describe the world-changing scientific contributions of Leeuwenhoek. CORRECT ANSWER A Dutch tailor, merchant, and lens grinder, and the man who discovered the bacterial world. He made his own magnifying lenses - simple microscopes - and observed many things in close detail. He discovered the microbial world and bacteria. Define microbes in the words of Leeuwenhoek and as we know them today. CORRECT ANSWER Leeuwenhoek named the bacteria he saw under the microscope microorganisms and today we call them microbes. He described microorganisms as a "quantity of matter no bigger than 1/100 part of a grain of sand. List six groups of microorganisms. CORRECT ANSWER 1. Bacteria 2. Archaea 3. Fungi 4. Protozoa 5. Algae 6. Viruses Explain why protozoa, algae, and nonmicroblal parasitic worms are studied in microbiology. CORRECT ANSWER Protozoa and nonmicroblal parasitic worms are studied in microbiology because they can cause disease. Algae is studied in microbiology because it provides most of the world's oxygen as a by-product of photosynthesis and it is used in agar as a solidifying agent in laboratories. List and answer four questions that propelled research in what is called the "Golden Age of Microbiology." CORRECT ANSWER 1. Is spontaneous generation of microbial life possible?