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TLS Online TPP Program

#Question id: 403

For the reaction A -> B, DG'° = –60 kJ/mol.  The reaction is started with 10 mmol of A; no B is initially present.  After 24 hours, analysis reveals the presence of 2 mmol of B, 8 mmol of A. Which is the most likely explanation?

#Section 2: General Biology

  1. A and B have reached equilibrium concentrations.

  2. An enzyme has shifted the equilibrium toward A.

  3. B formation is kinetically slow; equilibrium has not been reached by 24 hours.

  4. Formation of B is thermodynamically unfavorable.

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TLS Online TPP Program

#Question id: 16024

#Section 6: Plant, Animal and Microbial Biotechnology

Range of optimum glucose concentration present in the culture media is
TLS Online TPP Program

#Question id: 641

#Section 2: General Biology

Which of the following does NOT describe a mechanism that cells use to regulate enzyme activities?

A. Cells control enzyme activity by phosphorylation and dephosphorylation.

B. Cells control enzyme activity by the binding of small molecules.

C. Cells control the rates of diffusion of substrates to enzymes.

D. Cells control the rates of enzyme degradation.

E. Cells control the rates of enzyme synthesis.

F. Cells control the targeting of enzymes to specific organelles. 
TLS Online TPP Program

#Question id: 3720

#Section 3: Genetics, Cellular and Molecular Biology

The 3ʹ → 5ʹ exonuclease activity of E. coli DNA polymerase III accounts for the ________ of polymerization.
TLS Online TPP Program

#Question id: 27047

#Section 4: Fundamentals of Biological Engineering

Find the mass in grams of 3.6 moles of sulfuric acid (H2SO4)
TLS Online TPP Program

#Question id: 14461

#Section 1: Engineering Mathematics