You treat a cell with a fluorescently-labelled antibody that recognizes microtubules, and you observe what appears to be a spindle apparatus. Is the cell a prokaryote or a eukaryote? Explain.     Some archaebacteria species live in extremely high-salt environments. Cite a specific example of protein modification that has allowed these bacteria to accomplish this.

The nucleus is the largest of the eukaryotic organelles and contains the genome of the organism.  a) describe the proteins and process of nuclear import and export. b) describe, in general terms, an experiment that could be conducted to show that there are specific signals for nuclear import or export.

Your roommate left the deviled eggs out on the counter for 8 hours, but is happily eating them for breakfast. "We learned that bacteria take 20 minutes to reproduce at room temperature," he explains, "so I figure at most there's only a couple hundred in there. No big deal." What is your response, after remembering the equation N Noert, and the fact that e is roughly equal to 2.72? %3D O The intrinsic rate of increase (r) is only equal to 2, since each bacterium divides in half. No big deal. Hand me a fork! O If just 1 dangerous bacterium landed on your egg at the beginning of the night, there would now be approximately 1.7 million. They have been growing exponentially all night! You might be okay, but better not risk it. O If just 1 dangerous bacterium landed on your egg at the beginning of the night, there would now be nearly 27 billion. They have been growing exponentially all night! Call me if you need a ride to the hospital later. So the population only doubled 3 times for every…

For any antibiotic compounds that don’t appear to inhibit translation of proteins from the ribosome, purpose another potential mechanism whereby this class of antibiotic might be able to act (outside of cell wall/membrane formation). Explain in deatil.