TLS Online TPP Program

#Question id: 149


The pKaʹs of the side chain group and the α-carboxyl group of glutamate are 4.1 and 2.1, respectively. Which statement accounts for this difference?

#Section 2: General Biology
  1. The side chain has more possible resonance structures.

  2. The α-carboxyl group has less steric hindrance and is therefore ionized more easily.

  3. The side chain is a different functional group than the α-carboxyl group.

  4. The α-carboxyl group is closer to the α-amino group than the side chain is.

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TLS Online TPP Program

#Question id: 24076

#Section 5: Bioprocess Engineering and Process Biotechnology

Which of the following is not a possible graph of concentration versus time for a reactant?

TLS Online TPP Program

#Question id: 24077

#Section 5: Bioprocess Engineering and Process Biotechnology

The following graph shows the kinetics curves for the reaction of oxygen with hydrogen to form water:
O2(g) + 2H2(g) → 2H2O(g). Which curve is hydrogen?

TLS Online TPP Program

#Question id: 24078

#Section 5: Bioprocess Engineering and Process Biotechnology

A scientist conducts an experiment to determine the rate of the following reaction:
N2(g) + O2(g) → 2NO(g)
If the initial concentration of N2 was 0.500 M and the concentration of N2 was 0.450 M after 0.100 s, what is the rate of the reaction?

TLS Online TPP Program

#Question id: 24079

#Section 5: Bioprocess Engineering and Process Biotechnology

A scientist conducts an experiment to determine the rate of NO formation in the reaction:
N2(g) + O2(g) → 2NO(g)
If the initial concentration of N2 was 0.500 M and the concentration of N2 was 0.450 M after 0.100 s, what is the rate of NO formation?

TLS Online TPP Program

#Question id: 24080

#Section 5: Bioprocess Engineering and Process Biotechnology

HI dissociates to form I2 and H2:
2HI(g) →H2(g) + I2(g)
If the concentration of HI changes at a rate of –0.45 M/s, what is the rate of appearance of I2(g)?

TLS Online TPP Program

#Question id: 24081

#Section 5: Bioprocess Engineering and Process Biotechnology

For the reaction 2A + B + 2C → D + 2E, the rate law is:  rate =k[A]2[B]1[C]Which of the following statements is false: