bio 112 kahoot quiz questions (exam 1)

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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


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