Why is there no simple method to detect the formation of gluose or the disappearance of cellobiose?
Cellobiose is made up of 2 glucose moieties. Both cellobiose and glucose have similar oxidative power, and use of dinitrosalicylic acid used for determining reducing sugars cannot differentiate between the two.
The 2 glucose moieties are linked in the 1-4 direction in cellobiose, hence cleavage of cellobiose, will lead to one molecule of glucose with a reducing end. Hence, DNS will not react with cellobiose.
Why is there no simple method to detect the formation of gluose or the disappearance of...
3. Why can we not measure the rate of glucose formation by cellobiase directly? (2 points) 4. How do we use analogs of cellobiose to measure the reaction rate of cellobiase activity? Which analog of cellobiose did we use in the lab today? (4 points) 5. Why do we need to use a stop solution in our experiments today? (2 points
2, Give the relative rates of disappearance of reactants and formation of products for each of the following reactions. (a) 2 NO(g) +Br2(g) - 2 NOBr(g) (b) N2(g) + 3 H2(g) → 2 NH3(g) 3. In the reaction 2 03(g) → 3。2(g), the rate of formation of O2 is 1.5 x 10-3 molVL s. What is the rate of decom- position of 03? In the synthesis of ammonia, if-Δ[H21/Δt 4.5 × 10-4 mol/L-min, what is Δ[NH3VAt? N2(g) + 3 H2(g)...
(3 pts,) if the rate of disappearance of NO is 2.35 (Ms), what is the rate of formation the following reaction: 2 NO(g)+Bra(g)2 NOBrg)
If the rate of disappearance of A in the following reaction is 0.0504M/s for a certain set of initial conditions, calculate the rate of formation of Z for those same initial conditions. 3A+2B—>2Z
Why aren't auditors responsible to detect fraud in many cases? Should they be? Why or why not?
Explain why a SPECT system may be able to detect a PET isotope but a PET system can’t detect a SPECT isotope. Explain why a SPECT system may be able to detect multiple different SPECT tracers simultaneously but a PET system could never detect multiple different PET tracers simultaneously.
A method currently used to screen cancer fails to detect cancer in 20% of those who have cancer. A new method has been developed that researchers hope will be able to detect cancer more accurately. A random sample of 200 known to have cancer were screened using the new method and it failed to detect cancer in 30. Conduct a test to see if the new method is more accurate. Use α= 0.05. Assume that the sample size is large.
why is not always possible to detect a microbial pathogen in a patient?
The hydrolysis of pNG results in the formation of one molecule of pNit. However, the hydrolysis of cellobiose results in the formation of two glucose molecules. How would the measured rate of pNit “monomer” formation (reaction rate) appear if cellobiase produced two pNit “monomers” for each pNG molecule? Your answer for “a” is only an apparent rate. What would you have to do to your measured rates to calculate the actual rate of reaction?
A new analytical method to detect pollutants in water is being tested. This new method of chemical analysis is important because, if adopted, it could be used to detect three different contaminants—organic pollutants, volatile solvents, and chlorinated compounds—instead of having to use a single test for each pollutant. The makers of the test claim that it can detect high levels of organic pollutants with 99.7% accuracy, volatile solvents with 99.95% accuracy, and chlorinated compounds with 89.7% accuracy. If a pollutant...