GUARANTEE A+ 2025/2026
which of the following structures is found in gram-negative bacteria but is absent from gram-positive
bacteria? - outer lipid membrane
which type of archaea is able to survive in extremely high concentrations of salt? - halophiles
which of the following is true of prokaryotes, but not true of eukaryotes? - they have cell walls made of
peptidoglycan
which of the following is the role of ribosomes? - provide a site for protein synthesis
which of the following are theorized to be the ancestors of chloroplasts? - cyanobacteria
which eukaryotic microorganisms are photoautotrophs? - algae
describe the genetic material that is contained within a virus. - RNA or DNA, not both
in the life cycle of an animal virus, what occurs during adsorption? - the virus attaches to the receptor
sites outside the host cell
which of the following viral enzymes converts viral RNA into DNA? - reverse transcriptase
a bacteriophage is what type of microorganism? - virus
what is the key function of a microbe's cell membrane, also known as the cytoplasmic membrane? - it
transports nutrients in and wastes out
the outer covering of a virus is called the - capsid