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Lecture Exam 1 BIO 230 Questions AND ANSWER.
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Lecture Exam 1 BIO 230 Questions AND ANSWER.
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Lecture Exam 1 BIO 230Agastino Bassi - correct answer-1835
showed a silkworm disease was caused by fungus
Alexander Fleming - correct answer-1928
discovered first antibiotic - penicillin
algae - correct answer-autotrophic only - photosynthesis
eukaryotes and plant like
cellulose in their cell walls
can be both sexual and asexual
produce molecular oxygen and organic compounds
Angelina Hesse - correct answer-1880s
made isolation of bacteria possible by suggesting use of agar-agar in petri dishes
Antony Van Leeuwenhoek - correct answer-1673 - 1723
found, drew and documented microorganisms found in rain water, teeth scrapings and
peppercorns
father of microbiology
wee animacules
Avery, McCarty, MacLeod - correct answer-1944
DNA is the substance that causes bacterial transformation
bacteriology - correct answer-scientific study of bacteria
Be able to list 4 different ways microbes affect our lives. - correct answer-biotechnology - use
of microbes to produce foods and chemicals
biocontrol - use of microbes as alternatives to chemical pesticides
biodegradation - microbes are used to degrade organic matter such as in sewage
bioremediation - microbes are placed in favorable environments in situ to help detoxify
pollutants
bright field microscopy - correct answer-uses visible light, simple, and inexpensive
colored or clear specimen is on light background
use of transmission (light goes through specimen)
Carolus Linnaeus - correct answer-
Charles Chamberland - correct answer-1884
worked with Louis Pasteur and helped to develop what would become the autoclave
chemotherapy - correct answer-treatment of disease with chemical substances
, dark field microscopy - correct answer-use of reflection - uses visible light with a special
condenser that causes light to reflect off of specimen at an angle
appearance of bright specimen on dark background
IDEAL for unstained or difficult to stain organisms
NOT used to determine internal features; used when purpose of lab is to look at morphology
- shape and size of cell and motility
deductive reasoning - correct answer-from "top down"
tests existing theories. start with general idea to work towards specific idea
define microbiology - correct answer-branch of science that deals with microorganisms
describe archaea - correct answer-prokaryotes but cell walls lack peptidoglycan
mostly autotrophs
only reproduce asexually
ex. methanogens, halophiles, thermophiles
describe bacteria - correct answer-prokaryotes whose cell walls contain peptidoglycan
single celled organisms that divide via binary fission (asexual)
both autotrophic and (mostly heterotrophic) - use organic matter, inorganic matter, and
photosynthesis
describe domain eukarya - correct answer-eukaryotic
cell walls vary; contain carbohydrates
describe fungi - correct answer-both multicellular and single celled
contain chitin in their cell walls
yeasts are unicellular
molds and mushrooms are multicellular
heterotrophs only - these are saprobes - feed only on dead, decaying material
undergo both sexual and asexual reproduction
Edward Jenner - correct answer-1796
inoculated a person with cow pox and that person became immune to small pox
Elie Metchenkoff - correct answer-1908
discovered phagocytosis
emerging infectious disease - correct answer-new diseases and diseases increasing in
incidence
fluorescence microscopy - correct answer-IDEAL for diagnosis of disease
use of special lenses
uses fluorochrome and UV light
property of light is absorption
Fredrick Griffith - correct answer-1941
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