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BIO 235 EXAM 1 QUESTIONS AND ANSWERS
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BIO 235 EXAM 1 QUESTIONS AND ANSWERS
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BIO 235 EXAM 1 QUESTIONS AND ANSWERSRobert Koch - Answers-Father of microbiology, identified germ causing TB
Louis Pasteur - Answers-discredited spontaneous generation, proposed Germ theory,
"Microorganisms are responsible for infectious diseases
Antoine von Leeuonhoek - Answers-created the first microscope; first to see
microbes/bacteria
Robert Hooke - Answers-coined the term "cell"
Spontaneous Generation Theory - Answers-the theory that living organisms can rise
from nonliving things
binomial nomenclature - Answers-Classification system in which each species is
assigned a two-part scientific name
3 domains of life - Answers-Bacteria, Archaea, Eukarya
bacteria - Answers-single-celled organisms that lack a nucleus; prokaryotes
Eukarya - Answers-eukaryotic organisms
Archea - Answers-prokaryotic organisms
Bacteriology - Answers-study of bacteria
coccus (cocci) - Answers-spherical/ round shaped bacteria
Sprillium - Answers-spiral shaped bacteria
Spirochetes - Answers-long, loose, helical spiral
Vibrio - Answers-curved rod
Yeasts - Answers-unicellular fungi
Mycology - Answers-study of fungi
Protozoology - Answers-study of protozoans
Parasitiology - Answers-study of parasites
Virology - Answers-study of viruses
, taxonomical unit - Answers-classifies groups of closely related individuals
Virus size range - Answers-10-1000 nm in diameter. Much smaller than bacteria.
eukaryotic cell size - Answers-10-100 micrometers
prokaryotic cell size - Answers-1-10 micrometers
Bacillus - Answers-Rod shaped bacteria
oral thrush - Answers-yeast infection that occurs in the mouth, mainly affects infants
Helminthic parasites - Answers-- macroscopic, multicellular eukaryotic worms
- complex life cycles (intermediate forms- immature, definitive hosts- adult, large release
of eggs)
contrast - Answers-increase contrast to detect different structures in a specimen.
brightfield microscopy - Answers-produces a darker image in a lighter background
dark field microscopy - Answers-increases contrast, brighter image on a darker
background
fluorescence microscopy - Answers-uses UV light, specimen may naturally fluoresce or
is stained with fluorescent dyes
phase contrast microscopy - Answers-uses refraction and interference to create high
contrast/ resolution images with staining
Magnification - Answers-ability to enlarge objects
Resolution - Answers-The ability to distinguish two objects from each other at a given
magnification
objective lens - Answers-The lens on a light microscope that is closest to the stage,
ocular lens is 10x
simple microscope - Answers-a microscope that contains only one lens
compound microscope - Answers-A light microscope that has more than one lens
acid fast stain - Answers-able to differentiate between two gram positive cells ,
carbolfuchsin used as primary stain
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