Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 11410
TLS Online TPP Program

#Question id: 623

Which of these statements about enzyme-catalyzed reactions is false?

#Section 2: General Biology

  1. At saturating levels of substrate, the rate of an enzyme-catalyzed reaction is proportional to the enzyme concentration.

  2. If enough substrate is added, the normal Vmax of a reaction can be attained even in the presence of a competitive inhibitor.

  3. The rate of a reaction decreases steadily with time as substrate is depleted.

  4. The activation energy for the catalyzed reaction is the same as for the uncatalyzed reaction, but the equilibrium constant is more favorable in the enzyme-catalyzed reaction.

More Questions
TLS Online TPP Program

#Question id: 1615

#Section 2: General Biology

Which of the following statements is TRUE of C3b?
TLS Online TPP Program

#Question id: 1858

#Section 2: General Biology

Which of the following is an example of an anti-tumor vaccine?
TLS Online TPP Program

#Question id: 4729

#Section 3: Genetics, Cellular and Molecular Biology

In the following example, 3 independently assorting genes A, B and C are known to govern coat color in mice. Homozygous recessive cc (albino phenotype) is epistatic over both gene A and B, What will be the expected frequency of non albino, in the progeny from cross of AaBbCc with genotype of AABbCc?
TLS Online TPP Program

#Question id: 21732

#Section 5: Bioprocess Engineering and Process Biotechnology

Rate constants for the first-order decomposition of acetonedicarboxylic acid
CO(CH2COOH)2(aq) → CO(CH3)2(aq) + 2 CO2(g)
are k = 4.75 ×10–4 s–1 at 293 K and k = 1.63 ×10–3 at 303 K. What is the activation energy, Ea, for this reaction?
TLS Online TPP Program

#Question id: 15857

#Section 6: Plant, Animal and Microbial Biotechnology

The ability of a plant cell to perform all the functions of development is called__