Micro Test 1

Chapter 4 Question 44 - Multiple Choice The __________ makes use of malachite green. a) acid-fast stain b) flagellar stain c) negative stain d) electron microscopy stain e) endospore stain

Chapter 4 Question 13 - Multiple Choice All of the following are common to both the Gram stain and the acid-fast stain EXCEPT a) counterstain. b) a decolorizing agent. c) a decolorizing agent and a counterstain. d) a mordant. e) primary stain.

Chapter 3 Question 5 - Multiple Choice Which of the following bacterial cell structures plays an important role in the creation of biofilms? a) pili b) flagella c) glycocalyces d) fimbriae e) both fimbriae and glycocalyces

Chapter 1 Question 2 - Multiple Choice The microbes commonly known as ________ are single-celled eukaryotes that are generally motile. a) protozoa b) fungi c) bacteria d) archaea e) viruses

Chapter 3 Question 18 - Multiple Choice The glycocalyx of a eukaryotic cell performs all of the following functions EXCEPT a) strengthening the cell surface. b) protection against dehydration. c) anchoring cells to each other. d) cellular recognition and communication. e) transfer of genetic material between cells

Chapter 1 Question 11 - Multiple Choice Which of the following questions largely stimulated the research of microbes during what is known as the Golden Age of Microbiology? a) What causes disease, and is spontaneous generation of microbes possible? b) How do genes work? c) Is spontaneous generation of microbes possible? d) What causes disease? e) How are microbes related?

Chapter 1 Question 33 - Multiple Choice The work of Lister, Nightingale, and Semmelweis all contributed to controlling infectious disease by a) developing vaccines. b) developing techniques for isolating pathogens. c) determining the taxonomic relationships among microbes. d) identifying the sources of infectious agents. e) developing methods for reducing nosocomial infections.

Chapter 3 Question 26 - Multiple Choice Which of the following statements about the endoplasmic reticulum (ER) is correct? a) The ER is a transport system within the cytoplasm. b) The rough ER is the site of lipid synthesis. c) The smooth ER has ribosomes associated with it. d) The smooth ER is a site of ATP synthesis. e) The ER is a lipid storage organelle.

Chapter 1 Question 31 - Multiple Choice Which of the following is an incorrect pairing? a) fungi: cell walls b) protozoa: multicellular c) viruses: acellular parasites d) algae: aquatic and marine habitats e) prokaryotes: no nuclei

Chapter 1 Question 23 - Multiple Choice Which of the following was NOT an aspect of Pasteur's experiments to disprove spontaneous generation? a) He boiled the infusions to kill any microbes present. b) The flasks he used were sealed with corks. c) The flasks were incubated for very long periods of time. d) The flasks were free of microbes until they were opened. e) The necks of the flasks he used were bent into an S-shape

Chapter 4 Question 33 - Multiple Choice The Gram stain works because of differences in the ________ of bacteria. a) genetic characteristics b) cell membranes c) capsules d) antigens e) cell walls

Chapter 1 Question 26 - Multiple Choice Which of the following scientists was the first to develop a taxonomic system for classifying organisms? a) Lister b) Linnaeus c) Needham d) Pasteur e) Leeuwenhoek

Chapter 3 Question 1 - Multiple Choice Using a microscope, you observe an amoeba moving toward a food source. This is an example of a) growth. b) cellular structure. c) metabolism. d) reproduction. e) responsiveness

Chapter 1 Question 25 - Multiple Choice Which of the following is NOT a characteristic of protozoa? a) most exhibit asexual reproduction. b) they are eukaryotic organisms. c) they frequently possess cilia or flagella. d) they are the microbes most similar to plants. e) they are single-celled organisms

Chapter 4 Question 15 - Multiple Choice Which of the following staining procedures use(s) heat to drive the stain in? a) Gram stain b) capsule stain c) endospore stain d) acid-fast stain e) both acid-fast and endospore stains

Chapter 4 Question 48 - Multiple Choice A tick is usually measured in terms of: a) micrometers (μm). b) yards. c) meters (m). d) millimeters (mm). e) nanometers (nm).

Chapter 4 Question 38 - Multiple Choice When Gram-staining, ethanol-acetone is used as a: a) primary stain. b) drying agent. c) decolorizing agent. d) counterstain. e) mordant.

Chapter 4 Question 20 - Multiple Choice The taxonomic scheme proposed by Whittaker added the kingdom(s) ________ to Linnaeus' taxonomy. a) Fungi and Protista b) Animalia c) Bacteria d) Plantae e) Fungi, Protista, and Prokaryotae

Chapter 1 Question 9 - Multiple Choice Which of the following individuals pioneered the use of chemicals to reduce the incidence of infections during surgery? a) Nightingale b) Ehrlich c) Semmelweis d) Snow e) Lister

Chapter 3 Question 27 - Multiple Choice Which of the following organelles is responsible for producing most of the ATP in a eukaryotic cell? a) lysosome b) smooth endoplasmic reticulum c) Golgi body d) mitochondrion e) nucleus

Chapter 3 Question 8 - True/False Svedbergs are a measurement of the size and sedimentation rate of cellular structures such as ribosomes. a) True b) False

Chapter 1 Question 45 - Multiple Choice Making use of microbes for the manufacture of useful products such as antibiotics is called: a) biochemistry. b) chemotherapy. c) etiology. d) molecular biology. e) biotechnology.

Chapter 3 Question 34 - Multiple Choice Which of the following processes requires a carrier protein? a) active transport b) facilitated diffusion c) endocytosis d) diffusion e) both facilitated diffusion and active transport

Chapter 1 Question 16 - Multiple Choice Semmelweis advocated handwashing as a method of preventing which of the following diseases? a) syphilis b) smallpox c) anthrax d) cholera e) puerperal fever

Chapter 1 Question 12 - Multiple Choice The microbial activity of ________ is responsible for the production of various foods. a) bacteria b) fungi c) archaea d) protozoa e) both fungi and bacteria

Chapter 1 Question 29 - Multiple Choice John Snow's research during a cholera outbreak in London laid the foundation for which of the following branches of microbiology? a) infection control, epidemiology, and immunology b) infection control c) epidemiology d) both infection control and epidemiology e) immunology

Chapter 3 Question 35 - Multiple Choice Which of the following chemical substances contributes to the unique characteristics of acid-fast bacteria? a) lipoteichoic acid b) N-acetylglucosamine c) endotoxin d) mycolic acid e) peptidoglycan

Chapter 1 Question 1 - Multiple Choice Antoni van Leeuwenhoek was the first person in history to a) prove the germ theory. b) disprove spontaneous generation. c) view protozoa and bacteria. d) use a magnifying glass. e) develop a taxonomic system

Chapter 3 Question 49 - Multiple Choice Which of the following prokaryotic cells contains an outer membrane? a) Gram-positive bacteria b) Gram-negative bacteria c) Both Gram-positive and Gram-negative bacteria d) Archaea e) All prokaryotes

Chapter 1 Question 39 - Multiple Choice The term __________ literally means "produces disease". a) nosocomial b) prokaryote c) pathogen d) facultative anaerobe e) animacule

Chapter 4 Question 31 - Multiple Choice Acidic dyes a) are lipid soluble. b) work best in low pH environments. c) are negatively charged and work best at low pH. d) are negatively charged. e) are used for staining negatively charged molecular structures

Chapter 1 Question 1 - True/False The taxonomic scheme developed by Linnaeus remains largely unchanged in modern biology. a) True b) False

Chapter 4 Question 1 - Multiple Choice Cellular organelles and viruses are generally measured in a) nanometers. b) micrometers. c) millimeters. d) centimeters. e) decimeters

Chapter 1 Question 18 - Multiple Choice Which of the following is NOT a characteristic of viruses? a) they are composed of genetic material and protein. b) they are obligatory parasites. c) they are visible with a light microscope. d) they are acellular. e) they are smaller than prokaryotic cells

Chapter 1 Question 8 - Multiple Choice Which of the following statements concerning Koch's postulates is false? a) All of Koch's postulates must be satisfied before an organism can be proven to cause a particular disease. b) A suspected pathogen must be able to be grown in the laboratory. c) Koch's postulates involve the experimental infection of susceptible hosts. d) Koch's postulates cannot be used to demonstrate the cause of all diseases. e) A suspected pathogen must be found in the majority of individuals with a particular disease

Chapter 1 Question 36 - Multiple Choice Microorganisms characterized by the absence of a nucleus are called: a) viruses. b) pathogens. c) fungi. d) prokaryotes. e) eukaryotes.

Chapter 1 Question 42 - Multiple Choice The term __________ means the study of the blood components that fight infection. a) antisepsis b) serology c) bioremediation d) etiology e) chemotherapy

Chapter 3 Question 21 - Multiple Choice Which of the following statements concerning endocytosis and exocytosis is correct? a) Endocytosis is a form of passive transport, whereas exocytosis is a form of active transport. b) Phagocytosis is a type of endocytosis in which liquids are brought into the cell. c) Endocytosis produces a structure called a food vesicle. d) Waste products and secretions are exported from the cell during endocytosis. e) These processes occur in both prokaryotes and eukaryotes.

Chapter 1 Question 4 - Multiple Choice Microbes that can live in the presence or absence of oxygen are called a) prokaryotes. b) facultative anaerobes. c) obligate parasites. d) archaea. e) anaerobes.

Chapter 4 Question 12 - Multiple Choice If a microbiology lab technician left the safranin out of the Gram stain procedure, what would be the result? a) Gram-positive cells would be colorless, and Gram-negative cells would be pink. b) All cells would be purple. c) Gram-positive cells would be purple, and Gram-negative cells would be colorless. d) Gram-positive cells would be pink, and Gram-negative cells would be purple. e) All cells would be pink

Chapter 4 Question 16 - Multiple Choice Carbolfuchsin is the ________ in the acid-fast stain. a) counterstain b) fixing reagent c) decolorizer d) primary stain e) mordant

Chapter 3 Question 29 - Multiple Choice Which of the following is paired incorrectly? a) fungi: cellulose, chitin, and/or glucomannan cell wall b) plants: cellulose cell wall c) archaea: polysaccharide cell wall d) algae: glycocalyx present e) bacteria: peptidoglycan cell wall

Chapter 3 Question 46 - Multiple Choice Which of the following may have cell walls containing teichoic acids? a) Gram-positive bacteria b) Archaea c) Gram-negative bacteria d) Both Gram-positive and Gram-negative bacteria e) All prokaryotes

Chapter 4 Question 18 - Multiple Choice The kingdoms included in the Linnaeus system are a) Animalia and Prokaryotae. b) Animalia and Plantae. c) Protista and Plantae. d) Prokaryotae and Protista. e) Fungi and Protista

Chapter 4 Question 39 - Multiple Choice Crystal violet is the __________ in the Gram stain. a) primary stain b) mordant c) counterstain d) neutralizing agent e) decolorizing agent

Chapter 3 Question 6 - True/False Eukaryotic ribosomes are composed of 60S and 40S subunits. a) True b) False

Chapter 1 Question 7 - Multiple Choice Which of the following statements about fungi is FALSE? a) fungi have a cell wall. b) fungi are eukaryotes. c) yeast are unicellular. d) molds form hyphae. e) fungi are photosynthetic

Chapter 4 Question 37 - Multiple Choice The role of safranin in the Gram stain procedure is as the: a) mordant. b) decolorizing agent. c) negative stain. d) primary stain. e) counterstain

Chapter 1 Question 21 - Multiple Choice Saccharomyces cerevisiae is an example of which of the following types of microbes? a) alga b) prokaryote c) protozoan d) fungus e) virus

Chapter 1 Question 43 - Multiple Choice The study of the occurrence, distribution, and spread of disease is known as: a) biotechnology. b) epidemiology. c) molecular biology. d) serology. e) biochemistry.