Week 2-1

A  reducing antimicrobial resistance

B  methods of disease transmission

C  ultraminiature technology

D  communication within biofilms

A  Pasteur

B  Spallanzani

C  Needham

D  Redi

A  he did not heat his infusion flasks long enough

B  he did not give proper credit to Needham for his experiments

C  he eliminated air from his flasks by sealing them

D  he did not know which bacteria were growing in his flasks

A  Semmelweis

B  Lister

C  Nightingale

D  Jenner

A  they cause diseases that are diagnosed by finding microscopic eggs in clinical specimens

B  they were not studied by early microbiologists

C  they usually contain bacteria and other microbes

D  they are microscopic as adults

A  parasitic worm

B  protozoan

C  fungus

D  bacterium

A  He was the first to observe live microorganisms through a microscope.

B  He developed the vaccine for smallpox.

C  He did experiments supporting the idea of spontaneous generation.

D  He discovered some of the ways in which microbes can be transmitted between individuals.

A  protozoa

B  bacteria

C  archaea

D  viruses

A  nomenclature

B  staining microorganisms

C  grouping organisms

D  identification

A  are the main methods used to identify unknown bacteria

B  are used to determine rate of growth

C  are visualized using microscopes

D  are the most effective way to determine bacterial shape

A  They consist of a series of paired statements, in which only one statement of each pair applies to a given organism.

B  They only relate to the shape of the cell.

C  They are open-ended questions.

D  They only relate to biochemical processes of the cell.

A  Not all bacteria can be seen with a light microscope.

B  Many unrelated bacteria can share the same shape.

C  Bacteria have a limited set of shapes.

D  Identification is only needed in clinical specimens.

E  Bacteria have a limited set of shapes and many unrelated bacteria share the same shape.

A  The cells form a black precipitant.

B  The acetoin produced turns the medium pink.

C  The medium become turbid when exposed to air.

D  The drop in pH turns the indicator dye yellow.

A  the acid-fast stain        

B  the flagella stain       

C  the Gram stain        

D  the capsule stain        

A  the flagella stain

B  the Gram stain

C  the endospore stain

D  the acid-fast stain

A  stain

B  mordant

C  smear

D  biofilm

A  fluorescent microscope

B  transmission electron microscope

C  bright-field microscope

D  scanning tunneling microscope

A  50×

B  4000×

C  40×

D  400×

A  a bright-field microscope

B  a phase-contrast microscope

C  a transmission electron microscope

D  a dark-field microscope

A  a nanometer

B  a millimeter

C  a micrometer

D  a centimeter