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Question: A polyprotic molecule has pKa values of 7, 8, and 9. At pH equals 9.0, estimate roughly what is the deprotonated state of the three groups (expressed as %), respectively?
Question: When 10 molecules of pyruvic acid are broken down completely to CO2 and H2O in the presence of oxygen, how many molecules of ATP will be produced?
The best characterization of apoptosis is: the unwanted, unexpected death of a cell. cell death is a normal consequence of a cell living long enough to eventually be killed by accident.
A microbiologist found a new restriction endonuclease. When DNA is digested by this enzyme, fragments that average 1,048,500 bp in length are produced.
Suppose that you measure the OD of two E.coli cultures: culture A and culture B. The spectrophotometer gives you a reading of 2.2 for culture A and 0.02 for culture B.
In long-term starvation oxaloacetate is directed away from the CAc and into the gluconeogenesis pathway. Pyruvate starts to be converted to support glucose synthesis while fatty acids are oxidized into acetyl-coA.
How various ATP equivalents are required to synthesize de novo one molecule of IMP, starting from ribose-5-phosphate? Presume that all required precursors in the pathway are present.
Determine which of the following can contribute to stabilization of the secondary structure of a protein? (Select ALL that are TRUE.
A male baby who appeared normal at birth began to develop lethargy, hypothermia and apnea at forty-two hours after delivery. The infant was found to have normal levels of blood glucose,
This problem refers to the MN and ABO loci mentioned in class. It also refers to the Rh locus, which is responsible for the positive or negative part of the blood type.
Aspirin has a pH of three. Some people who take large amounts of aspirin (for example, for arthritis) take a pill that combines aspirin with Maalox. What is the reason for this combination.
Beginning at the esophagus, trace the pathway of food through the system. At each organ, indicate anatomical adaptations to the general GI tract tube structure that enhance the specific functions of the organs.
Assume you are a scientist at a genetic testing company. Describe how you would take one approach to testing relatedness between two individuals,
Describe these strategies. What are the advantages and disadvantages of each strategy for a virus? Give an example of a specific virus and how it follows one of the strategies.
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