BIO 205 Final Exam Complete Solutions
Resolving power of an optical microscope is defined as: ️The ability to distinguish two closely
positioned objects as separate entities
What is the total magnification produced by a microscope, using a 10x ocular lens and a 10x objective
lens? ️100x...
Resolving power of an optical microscope is defined as: ✔️The ability to distinguish two closely
positioned objects as separate entities
What is the total magnification produced by a microscope, using a 10x ocular lens and a 10x objective
lens? ✔️100x
This scientist experimented on his son and developed the first smallpox vaccine: ✔️Edward Jenner
This man built the first crude compound microscope and coined the term "cell" to mean the smallest
unit of life: ✔️Robert Hooke
Who discovered the first antibiotic, Penicillin? ✔️Alexander Flemming
Put the speculation of spontaneous generation to rest by developing the "swan necked" flask: ✔️Louis
Pasteur
Archaea were reclassified based on their 16S rRNA sequence by this man in the 1970s. ✔️Carl Woese
16S rRNA is an RNA molecule that is found in the ✔️Ribosome
Spontaneous generation is defined as the generation of life from living matter***Spontaneous
generation = same as biogenesis = life from non-life*** ✔️False
A phylogenetic tree is a diagram based on genetic data used to infer ___________ between organisms
✔️Evolutionary relationships
Which of the following statements concerning Koch's postulates is false? ✔️F: Susceptible hosts are
injected with a mixed culture of the suspected pathogens. True: A suspected pathogen must be isolated
,and grown in pure culture. True: Koch's postulates involve the experimental infection of susceptible
hosts. True: the suspected pathogen must be isolated from the host that became infected. True: all of
Koch's postulates must be satisfied before an organism can be proven to cause a particular disease.
Archaea are common human pathogens ✔️False
Using microbes to degrade an oil spill would be an example of ✔️Bioremediation
The taxonomical hierarchy proceeds from the most general to the most specific in which order?
✔️Domain, Kingdon, Phylum, Class, Order, Family, Genus, Species
You travel to Hawaii for a microbe sampling trip. You take water from a volcanic hot spring with very low
pH (acidic) and very high temperatures (in excess of 60*C). Your environmental sample will likely be
dominated by ✔️Archaea
A traditional binomial scientific name is written using which two taxonomic classifications? ✔️Genus
and Species
Which of the following is NOT a known type of pathogen ✔️Algae
Which two microorganisms are important in decomposition and nutrient recycling in the environment?
✔️Bacteria and fungus
Lipopolysaccharide (LPS) is comprised of ✔️Lipid and sugar
LPS is anchored in the ____________ of the cell wall ✔️Outer membrane
Lipid A is a(n) ✔️Endotoxin
Consider the shape and arrangement of these cells: They are classified as: (image of two rods connected
to each other)***image of round = cocci. Cluster = staph ✔️Diplobacilli... staphlococci
, Bacterial conjugation involves the transmission of genetic information from one bacterium to another
bacterium through which structure? ✔️Pilus
The bacterial flagellum is made of: ✔️Protein
In biofilm formation, attachment of the pioneering species is followed by: ✔️Colonization
Gram-negative bacteria will be ________ after staining. ✔️Pink
Which part of gram-negative bacteria is solubilized by the alcohol/acetone destain? ✔️Outer
membrane
Identify the flagellar arrangement that is characterized by 1 or more flagella at both ends. (image two
wiggly lines connected on both ends by three wiggly lines (each)) ✔️Amphitrichous
The size of most prokaryotic cells is measured in ✔️Micrometers
Peptidoglycan is comprised of ✔️Sugar and protein
The nucleoid ✔️Contains the bacterial chromosome
The functional purpose of cellular inclusions is most often ✔️Storage
Bacteria can achieve locomotion (movement) using which of the following? ✔️Flagella
Mycobacteria are structured most similarly to a Gram-___________ cell and their walls have high
concentrations of ___________. ✔️Positive; mycolic acids
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