Bio 250 Exam 1 Study Guide Questions and Answers

Why is it important to study microbiology? A. Microorganisms are part of the natural environment and important to nutrient cycling. B. Microorganisms are vital to producing essential products. C. Microorganisms are excellent subjects on which to conduct scientific research. D. Microorganisms are linked to many human diseases. E. All of these. Ans: E Which of these groups are single-celled and possess a nucleus? A. Fungi B. Bacteria C. Viruses D. Protozoa E. Helminths Ans: D. The notion that disease could be prevented by proper disposal of human waste was developed _____ . A. in early Biblical times (more than 3000 years ago) B. in ancient Greece (about 2300 years ago) C. at the time of the Black Death (about 600 years ago) D. after the discovery of cells (about 350 years ago) E. after the discovery of viruses (about 125 years ago) Ans: A. Which of the following tools expanded the study of microbiology in the 17th century? A. Compound microscope