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A bacterial population is measured for 12 hours. The followingresults are obtained:
Time Bacteria (#/mL)0 1001 1002 1003 1004 1265 1586 1997 2518 3169 39710 50011 63012 792
a) What is the first-order growth rate constant?b) What is the generation (doubling) time, G?c) What will be the population at 14 hours, assuming the observedgrowth continues?d) The culture can only withstand a population of 4000 per mL. Tothe nearest hour, when will the stationary phase set in?
A young man twenty-one years of age has come into the local health clinic with a hemoglobin of 11.9 gm/dL and a hematocrit of 25 percent.
What changes take place in neurotransmitter release from the rods or cons when they are exposed to light?
Consider a simple model cell that consists of cytoplasm surrounded by a cell membrane. The cell's initial volume is 3 nL and contains 0.3 M protein and 0.2M Ca++. The cell is placed into a 500mL tank of 0.1 M calcium chloride. Neither Ca++ nor Cl-..
Lithops, also called Stoneplants, are a type of plant that resembles little stones. These plants have the ability to blend in with their surrounding, which affords them protection from predators. If you were in an area containing Lithops.
Why are lipid rafts thicker than other parts of the bilayers?
How would you explain to a biology class that in the next decade some diseases currently thought to be noninfectious will probably be found to be caused by microbes?
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If you had to determine the protein concentration of a protein solution with a rather low concentration, which technique would you use and why?
Draw the synaptic configuration of homologous pairs of chromosomes when one member is normal and the other member has sustained a duplication within the chromosome
What is natural selection, how does it work, and how does it compare to artificial selection?
What is the difference between an obligate anaerobe, obligate aerobe, chemoheterotroph, diazotroph, aerotolerant anaerobe, and facultative anaerobe?
Which types of genetic effects are associated with interactive variance?
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