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Which of the following is TRUE about the properties of aqueous solutions?
Select one:
a. A pH change from 5.0 to 6.0 reflects an increase in the hydroxide ion concentration ([OH-]) of 20 percent.
b. A pH change from 8.0 to 6.0 reflects a decrease in the proton concentration ([H+]) by a factor of 100.
c. Charged molecules are generally insoluble in water.
d. Hydrogen bonds form readily in aqueous solutions.
e. The pH can be calculated by adding 7 to the value of the pOH
Q. Which kind of chemical bond maintains the pairing of each chain in the DNA molecule? To form the DNA molecule, purine bases bind to pyrimidine bases by intermolecular bonds
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Q. Does pH affect the enzyme activity? The concentrations of hydrogen ions in solution affect the enzyme activity. Each enzyme has utmost efficiency under an optimum p H . S
Which type of chemical bond maintains the pairing of each chain in the DNA molecule? Ans) To form the DNA molecule, purine bases bind to pyrimidine bases by intermolecular bonds
a. Which amino acid can form disulfide bonds? b. Which level of protein structure do disulfide bonds affect? How? c. Cytoplasmic proteins rarely form disulfide bonds, even if they
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