Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 10816
TLS Online TPP Program

#Question id: 146

The pH inside cells is normally near pH 7. At pH 7 which statement is true about the charges (ionization state) of the α-Carboxyl and α-Amino groups of an amino acid?

#Section 2: General Biology

  1. The α-Carboxyl group is 1- and the α-Amino group is 1+.

  2. The α-Carboxyl group is 1+ and the α-Amino group is 1-.

  3. The α-Carboxyl group is 1- and the α-Amino group is uncharged.

  4. Both groups are uncharged (not ionized) at pH 7.

More Questions
TLS Online TPP Program

#Question id: 407

#Section 2: General Biology

The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C.  Starting under standard conditions, one can predict that:
TLS Online TPP Program

#Question id: 407

#Section 4: Fundamentals of Biological Engineering

The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C.  Starting under standard conditions, one can predict that:
TLS Online TPP Program

#Question id: 408

#Section 2: General Biology

Which of the following compounds has the largest negative value for the standard free-energy change (DG'°) upon hydrolysis?
TLS Online TPP Program

#Question id: 408

#Section 4: Fundamentals of Biological Engineering

Which of the following compounds has the largest negative value for the standard free-energy change (DG'°) upon hydrolysis?
TLS Online TPP Program

#Question id: 409

#Section 2: General Biology

For the following reaction,DG'° = +29.7 kJ/mol. L-Malate + NAD+ -> oxaloacetate + NADH + H+ The reaction as written:
TLS Online TPP Program

#Question id: 409

#Section 4: Fundamentals of Biological Engineering

For the following reaction,DG'° = +29.7 kJ/mol. L-Malate + NAD+ -> oxaloacetate + NADH + H+ The reaction as written: