bio 112 kahoot quiz questions (exam 1)
similarities in ______ is used as a molecular clock to indicate whether individuals have been evolved from same ancestor
DNA, RNA, or amino acid structure
bacteria that use the oxidation of inorganic compounds to provide energy for manufacturing nutrients organic compounds:
chemoautotrophs
biofilms include only different bacteria
false
what is the study of diversity of organisms and their evolutionary relationships?
systematics
what are sub viral agents that depend on co-infection of a host cell with a helper virus?
satellites
what are those that have been almost eradicated and then suddenly recur, causing an epidemic?
re-emerging viruses
the genome of most plant viruses consists of what kind of RNA?
single stranded RNA
what is a chain of round bacteria called?
streptococci
an example of biofilm is dental plaque
true
biofilms are formed by bacteria living in a watery environment
true
biofilms enable bacteria to attach to solid surfaces
true
the archaea plasma membranes are made up of branched-chain hydrocarbons bounded to glycerol by either linkages
true
which is NOT one of the characteristics of a virus?
viruses are very tiny cells with nuclei
what is the purpose of phage therapy?
To target specific bacteria in the body and destroy them
all members of the same species occupying the same area at the same time constitute:
a population
by analyzing DNA sequences and molecular data of organisms, scientists are more often classifying organisms by
evolutionary history
what is the correct unit of measurement for the size of most viruses?
nanometers
peptidoglycan consists of:
polypeptides crosslinked with sugars
which process is most directly associated with the theory of evolution?
Populations changing over time
What is a dependent variable?
any changes/results happening during an experiment
how do some bacteria respond to adverse environmental conditions?
bacteria form endospores
the source of some of the plants cells organelles could be:
both aerobic and photosynthetic bacteria
Experiment can happen before observation
false
bacterial conjugation is related to:
horizontal gene transfer
in ______, gene swapping takes place between one genome and another between different species
horizontal gene transfer
during what cycle does a bacterium carrying viral genes take on new, atypical characteristics?
lysogenic
which is NOT part of the scientific process?
not predicting the results
the most significant difference between archaea and bacteria is the:
the absence of peptidoglycans in the cell walls of the Archaea.
some bacteria avoid being phagocytized by a host's immune system by means of:
their capsule or slime layer
how many domains from the three main branches of the tree of life?
three
which is the only prokaryote to carry on photosynthesis that generates oxygen?
cyanobacteria
which of the following are RNA viruses that have a DNA polymerase?
Retroviruses
at what stage of a lytic infection are phage components put together to make new viruses?
assembly
before an animal cell's membrane fuses with a virus, the virus must first:
attach to a specific receptor on the plasma membrane of the host cell
which statement best decribes autotrophic organisms?
autotrophs synthesize macromolecules from CO2, water, and energy
during an experiment, what is the purpose of a control group
to ensure the results observed is only due to the variable being tested
