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viruses, although not considered to be alive, attack host cells and cause disease. the attack of a host cell is necessary for the
virus to survive for all of the reasons listed except one. that is
they cannot synthesize proteins because they lack ribosomes and must use
the ribosomes of their host cells to translate viral messenger rna into new eminate
proteins
they cannot produce or store energy in the form of atp and have to get
their energy from the host cell
they parasitize the host cell for basic molecules like amino acids,
nucleotides, and lipids,
they lack dna/rna so they must use the dna of the host cell
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Astudent from one of the research labs is having trouble preparing a slide for examination and photographing. the bacterial slide that he has brought to you was prepared using a commercially purchased stain. he has asked for your in determining what he is doing wrong so that he can change the lab protocols and continue on with his project. after examining the slide under oil immersion, you determine that no bacteria are present even though the student is able to show you the culture he used to make that slide that has visible growth in the liquid medium. which of the following statements does not explain the fact that there are no bacteria present on the student’s slide? by not allowing a glass slide to completely air dry before heat fixation, the flame will cause the surrounding water to boil and this will damage the bacterial cell. overheating during the fixation step boiled the water within the bacterial cells and resulted in the cells bursting. insufficient heating of the slide did not drive out the thin layer of water and this resulted in minimal bonding between the bacteria and the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide.