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TLS Online TPP Program

#Question id: 548

Which one of the following statements is true of enzyme catalysts?

#Section 2: General Biology

  1. Their catalytic activity is independent of pH.

  2. They are generally equally active on D and L isomers of a given substrate.

  3. They can increase the equilibrium constant for a given reaction by a thousand fold or more.

  4. They can increase the reaction rate for a given reaction by a thousand fold or more.

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TLS Online TPP Program

#Question id: 399

#Section 4: Fundamentals of Biological Engineering

Calculate the pH of a 1 L solution containing 0.100 M formic acid and 0.100 M sodium formate before and after the addition of 1.00 mL of 5.00 M NaOH. How much would the pH change if the NaOH were added to 1.00 L of pure water? (pKa for formic acid is 3.75)
TLS Online TPP Program

#Question id: 1954

#Section 2: General Biology

What is the single best description of type 1 diabetes?
TLS Online TPP Program

#Question id: 653

#Section 2: General Biology

For the enzyme-catalyzed reaction S ~ P, Keq = 5, which of the following curves best represents the change in [S] that occurs with time when S is added to a solution containing the appropriate enzyme?
TLS Online TPP Program

#Question id: 27237

#Section 3: Genetics, Cellular and Molecular Biology

The DNA in virus can be ……………………………………………….. Stranded.
TLS Online TPP Program

#Question id: 3734

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is mismatched?