Microbiology Exam 1 (3)
Which of the following statements concerning prokaryotic flagella is TRUE? a) prokaryotic flagella move in a whip like manner b) prokaryotic flagella are anchored to the cell wall by the basal body c) A spirochete is a bacterium that has a tuft of polar flagella d) prokaryotic flagella are composed of tubulin e) many motile bacteria have an amphitrichous polar flagellar arrangment
b) prokaryotic flagella are anchored to the cell wall by the basal body
Which of the following is paired incorrectly? a) bacteria - peptidoglycan cell wall b) protozoa - glycogen cell wall c) fungi - chitin cell wall d) archaea - polysaccahride cell wall e) plants - cellulose cell wall
b) protozoa - glycogen cell wall (protozoa do not have cell walls)
Which of the folloiwng statements about the ER correct? a) the ER is a lipid storage organelle b) the ER is a transport system within cytoplasm c) the SER has ribosomes associated with it d) the RER is the site of lipid synthesis e) the SER is a site of ATP synthesis
b) the ER is a transport system within cytoplasm
Which of the following is NOT a component of bacterial flagella? a) hook b) tubulin c) filament d) flagellin e) basal body
b) tubulin
The term for the use of microorganisms to restore damaged environment is a) serology b) chemotherapy c) bioremediation d) ecology e) epidomiology
c) bioremediation
biogenesis refers to the a) germ theory of disease b) spontaneous generation of organisms from nonliving matter c) development of life forms from preexisting life forms d) development of aseptic technique
c) development of life forms from preexisting life forms
Who is "Father of Surgery?" a) semmelweis b) nightingale c) lister d) snow e) ehrlich
c) lister
Which of the following is a function of the golgi apparatus a) protein synthesis b) intracellular digestion c)protein modification d) drug detox e) cellular respiration
c) protein modification
Which of the following is NOT a functionally analogous pair? a) nucleus - nucleoid region b) microtubules - flagellin c) mitochondria - prokaryotic plasma membrane d) cilia - pili e) 80s ribosome - 70s ribosome
d) cilia - pili
Who discovered Penicillin? a) kitasato b) pasteur c) ehrlich d) fleming e) domagk
d) fleming
Which of the following statements about fungi is FALSE? a) molds form hyphae b) fungi are eukaryotes c) fungi have a cell wall d) fungi are photosynthetic e) yeasts are unicellular
d) fungi are photosynthetic
Lipid A is a compont of a) mycolic acid b) plant cell walls c) cytoplasmic membranes d) lipopolysaccahrides e) bacterial glycocalyces
d) lipopolysaccahrides
Fungal infections are studied by a) parasitologists b) herpetologists c) virologists d) mycologists e) bacteriologist
d) mycologists
Which of the following organelles is NOT defined by a membrane? a) lysosome b) chloroplast c) golgi apparatus d) ribosome e) ER
d) ribosome
Bacteria of the genus Mycoplasma are distinguished from other bacterial cells by a) unique ribosomes b) cell walls composed solely of amino acids c) the absence of cytoplasmic membrane d) the absence of a cell wall e) the presence of mycolic acid in their cell walls
d) the absence of a cell wall
Which of the following statements about algae is FALSE? a) they provide most of the oxygen on Earth b) the group include seaweeds and keps c) they are photosynthetic organisms d) they are important in the degradation of dead plants and animals e) they can be unicellular or multicellular
d) they are important in the degradation of dead plants and animals
Which of the following is NOT a characteristic of viruses? a) they are composed of genetic material and protein b) they are acellular c) they are smaller then prokaryotic cells d) they are visible without a light microscope e) they are obligatory parasties
d) they are visible without a light microscope
Which of the following statements is INCORRECT regarding prokayotic cells a) they reproduce by binary fission b) their DNA is not enclosed within a membrane c) they lack membrane enclosed organelles d) they lack a plasma membrane e) they typically have a circular chromosome
d) they lack a plasma membrane
Development of emerging infectious disease can be a result of all the following EXCEPT a) modern transportation b) microbial mutation c) changes in the environment d) use of genetically modified foods e) overuse of antibiotics
d) use of genetically modified foods
______ is the physician first associated with vaccination a) Lister b) Koch c) Pasteur d) Escherich e) Jenner
e) Jenner
Which of the following may be a component of bacterial cell walls? a) lipteichoic acids b) mycolic acids c) murein d) lipopolysaccahrides e) all the above
e) all the above
Protozoan motility structures include a) flagella b) pseudopods c) cilia d) cilia and pseudopods only e) cilia, flagella, and pseudopods
e) cilia, flagella, and pseudopods
If a cell's lysosomes burst, the cell would a) become flaccid b) shrivel c) need to manufacture more lysosomes d) divide into two cells e) digest itself
e) digest itself
Which of the following statements is TRUE? a) a cell can produce many endospores b) a cell can produce one endospore and keeps growing c) endospores are easily stained in gram stains d) endospores are for reproduction e) endospores allow a cell to survive environmental changes
e) endospores allow a cell to survive environmental changes
Which of the following may have cell walls containing teichoic acids? a) gram negative bacteria b) archaea c) all prokaryotes d) both gram positive and gram negative bacteria e) gram positive bacteria
e) gram positive
The arguments supporting spontaneous generation were finally disproved by a) Spalianzani b) Virchow c) Neeham d) Redi e) Pasteur
e) pasteur
Question that largely resembles the research of microbes during the Golden Age of Microbiology? a) how can microorganisms be seen? b) what causes disease? c) How should living organisms be classified d) Is spontaneous generation of microbes possible? e) what causes disease. and is spontaneous generation of microbes possible?
e) what causes disease and is spontaneous generation of microbes possible?
Which structures act like an "invisibility cloak" and protects bacteria from being phagocytized a) cell wall b) capsule c) slime layer d) fimbriae e) cell membrane
b) capsule
Which of the following prokaryotic cells contain an outer membrane? a) gram positive bacteria b) gram negative bacteria c) both gram negative and gram positive bacteria d) arechaea e) all prokarytoes
b) gram negative bacteria
The formal system for classifying and naming organisms was developed by a) Koch b) linnaeus c) semmelweis d) aristotle e) pasteur
b) linnaeus
Which of the following chemical substance contributes to the unique characteristics of acid-fast bacteria? a) lipoteichoic acid b) mycolic acid c) N-acetylglucosamine d) endotoxin e) peptidoglycan
b) mycolic acid
Some members of _________ have pseudomurein a) archaea b) bacteria c) eukaroyotes d) both archaea and bacteria e) both bacteria and eukaryotes
a) archaea
Short hairlike structures used only by eukaryotic cells for movement are called a) cilia b) fimbriae c) flagella d) pili e) pseudopods
a) cilia
Which of the following structure is NOT found in some prokaryotic cells? a) cilium b) flagellum c) peritrichous flagella d) axial filament e) pilus
a) cilium
The study of the body's defenses against pathogens is called a) immunology b) molecular biology c) etiology d) chemotherapy e) epidemiology
a) immunology
The DNA found is most bacterial cells a) is circular in structure b) utilizes histones from chromosomal packaging c) is surrounded by a nuclear membrane d) is linear in structure e) is found in multiple copies
a) is circular in structure
Which of the statements is generally NOT true? a) microbial cells include both bacteria and viruses b) microbial cells carry out their life c) microbial cells exist as single cells d) microbial cells exclude the cells plants and animals
a) microbial cells include both bacteria and viruses
What name is given to the organelle that manufactures the components of ribosomes? a) nucleolus b) nucleus c) ER d) cytoplasm
a) nucleolus
Which of the following pairs is mismatched? a) nucleolus - DNA b) lysosomes - digestive tract c) golgi complex - secretion d) RER - ribosomes e) mitochondria - ATP production
a) nucleolus - DNA
protein synthesis occurs in the a) ribosomes b) nucleus c) cytoskeleton d) periplasmic space e) inclusion
a) ribosomes
Paul Ehrlich used chemotherapy to treat a) syphilis b) cholera c) smallpox d) cancer e) anthrax
a) syphilis
Which of the following is NOT a component of bacterial cell wall? a) tubulin b) tetrpeptide c) peptidoglycan d) lipopolysaccharides e) mycolic acid
a) tubulin