Practice Quiz for Chapter 1 Microbiology

Practice Quiz for Chapter 1 Microbiology Which of the following is not considered a microorganism? a. alga b. bacterium c. protozoan d. mushroom - answerd. mushroom explanation: mushroom is to big to be a microorganism. An area of microbiology that is concerned with the occurrence of disease in human populations is a. immunology b. parasitology c. epidemiology d. bioremediation - answerc. epidemiology explanation- a. immunology- studies the complex web of protective substances and reactions caused by invading microbes and other harmful entities. b. parasitology- studies parasitism and parasitic organisms d. bioremediation- a new science that introduces microbes into the environment to restore stability or to clean up toxic pollutants. which process involves the deliberate alteration of an organisms genetic material? a. bioremediation b. biotechnology c. decomposition d. recombinant DNA - answerd. recombinant DNA explanation- a. bioremediation- a new science that introduces microbes into the environment to restore stability or to clean up toxic pollutants. b. biotechnology- when humans manipulate microorganisms to make products in an industrial setting. c. decomposition- the breakdown of dead matter and waste into smaller compounds. A prominent difference between prokaryotic and eukaryotic cells is the a. larger size of prokaryotes b. lack of pigmentation in eukaryotes c. presence of a nucleus in eukaryotes d. presence of a cell wall in prokaryotes - answerc. presence of a nucleus in eukaryotes ( prokaryotes lack a nucleus) explanation a. Prokaryotes are 10x smaller then eukaryotes b. pigmentation is not related to comparison of the cells d. both prokaryotes and eukaryotes have cell walls. which of the following parts was absent from Leeuwenhoek's microscopes? a. focusing screw b. lens c. specimen holder d. condenser - answerd. conden