Biology 1101 Set 9

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Terms in this set (...)

brown algae are
eukaryotic and photosynthetic
which of the following statements about the archaeal genome is correct
none of the above
individuals that have a resistance to the malarial Plasmodium carry an allele designated
Hb ^s
the Plasmodium parasite is transmitted by
mosquitoes
prokaryotes are reproduced by __, which creates __ exact daughter cell clones of the original parent
binary fission; two
the malarial Plasmodium is difficult for the human immune system to fight off because
it mimics human red blood cells
smaller circular DNA molecules capable of self-replication are called
plasmids
the same genetic condition that causes sickle-cell anemia can protect against
malaria
most archaean species
are beneficial to humans
how did mitochondria originate in protists
they derived from bacterial cells that were taken in and later specialized
all living organisms have evolved from a single common ancestor. the existence to which molecule lends the greatest support for this statement
ribosomal RNA
archaea and bacteria diverged
before archaea and eukarya diverged
what biologists once considered to be Kingdom protista is now known not to be monophyletic. which of the following statements is both true and consistent with this fact
different primitive eukaryotic ancestors give rise to different lineages of protists
the three most fundamental groups of organisms on the planet are
bacteria, archaea, eukarya
the first eukaryotes were
protists
the oldest known eukaryotes were
algae
the basic structure of a virus consists of
genetic information in the form of DNA or RNA enclosed in a protein coat
protists are all alike in that they are
eukaryotic
spherical bacteria are known as
cocci
prokaryotes are classified into __ domains
two
is it important to take all of the antibiotic prescribed to you by your physician even after symptoms clear up
yes, the extra antibiotic in your system will help you build up an immunity to the next bacterial episode you experience
all the living organisms that we can see with the naked eye are
the domain of eukarya
conjugation is a process by which
a bacterium transfers a copy of some or all of its DNA to another bacterium
antibiotics have no effect on
viruses
members of archaea have been observed most commonly
in very extreme (with respect to temp and pressure) enviornments
in evolutionary time, the nuclear membrane was probably first formed by
the fusion of folds of the plasma membrane that surrounds the cell
a paramecium feeds by the process of
phagocytosis
gram-positive bacteria are colored purple by the gram-stain because
they have a layer of gylcoprotein called peptidoglycan outside of the cell membrane
which of the following does bacterium NOT contain
mitochondria
the bacterium is gram-positive only if
it has a layer of peptidoglycan on the outside of the cell membrane
protists that spread without any individual cells moving, but rather by adding new cells at the edge of the colony are called
slime molds
prokaryotic cells may contain all of the following except
membrane-bound nucleus