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Question: A one hundred ml vessel is filled with water separated in equal parts by a semipermeable membrane. The molecular weight cut off ( MWCO) of the membrane is 100g/mol. In compartment A , 0.5 moles of calcium gluconate ( molecular weight: 430.373g/ mol) is dissolved in the water. ** Assuming full dissociation of calcium gluconate in water and no net movement of water across the memebrane. a. Calculate the molarity, osmolarity, and osmolality of the calcium gluconate solution b. In your own words, describe the behavior of calcium ions as they diffuse across the semipermeable membrane. c.If you were to place a potentiometer electrode in compartment A and a reference electrode in compartment B, what voltage would you measure? What voltage would you measure if the electrodes were switched ? ** assuming free movement of water across the membrane, d. Calculate the number of glucose molecules you would need to add to compartment B to keep the volume of water in each compartment equal .
How would this method result in purification of tubulin.
Assume you are an ecologist studying a population of gerbils that can be found in nature with three different colors. An individual gerbil can be, dark brown, medium brown, or light brown.
Create a map of these 3 genes, including the correct order, and map distance between each gene. Describe your reasoning/show your work for both
Colonies were then transferred to plates containing a minimum media. To grow on minimum medium, yeast cells must be wild type and able to produced their own amino acids, and nucleotides.
In mice, the A y allele of agouti mice is ecessive lethal allele, but it is dominant for yellow coat color. What phenotypes and ratios of offspring would you expect from the cross of a mouse
A casino paid 28,000 for a grilled cheese sandwich that was purported to have an image of the Virgin Mary on it.
Phenylketonuria is a severe form of mental retardation caused by a recessive allele. The situation affects about 1 in 25,000 newborn babies.
The PSA test is the most widely used test to detect prostate cancer. The PSA marker is a protease that is manufactured specifically in the prostate gland.
It is the accumulation of acetyaldehyde that results in flushed face, dizziness, and light headedness responses that are associated with ethanol intoxication.
Which of statements concerning the sperm might be true. These data let you to infer that the species belongs to which protist groups.
In most biology experiments the relationship between the independent and the dependent variable can be best described as cause and effect. Describe.
Consider any natural populations that might be out of Hardy-Weinberg equilibrium? You need not to test this with statistics. Just name the species and explain the population.
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