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TLS Online TPP Program

#Question id: 626

A metabolic pathway proceeds according to the scheme, R -> S -> T -> U -> V -> W.  A regulatory enzyme, X, catalyzes the first reaction in the pathway.  Which of the following is most likely correct for this pathway?

#Section 2: General Biology

  1. Either metabolite U or V is likely to be a positive modulator, increasing the activity of X.

  2. The first product S, is probably the primary negative modulator of X, leading to feedback inhibition.

  3. The last product, W, is likely to be a negative modulator of X, leading to feedback inhibition.

  4. The last product, W, is likely to be a positive modulator, increasing the activity of X.

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TLS Online TPP Program

#Question id: 15569

#Section 1: Engineering Mathematics

A root x4 — 3x + 1 = 0 needs to be found using the Newton-Raphson method. If the initial guess xo and 0, then the new estimate x1 after the first iteration is 
TLS Online TPP Program

#Question id: 15570

#Section 1: Engineering Mathematics

To solve x2 - 2 = 0, the Newton-Raphson method has been employed. If the initial guess xo = 1.0, the next estimate of the root, x1, will be 
TLS Online TPP Program

#Question id: 15571

#Section 1: Engineering Mathematics

The approximate value of a root of x3 -13 = 0, then 3.5 as initial value, after one iteration using Newton-Raphson method, is 
TLS Online TPP Program

#Question id: 15572

#Section 1: Engineering Mathematics

What is the cube root of 1468 to 3 decimal places? 
TLS Online TPP Program

#Question id: 15573

#Section 4: Fundamentals of Biological Engineering

For the first-order reaction given by 2N2O5 → 4NO2 + O2 the initial concentration of N2O5 was 0.1M (at a constant temperature of 300K). After 10 minutes, the concentration of N2O5 was found to be 0.01M. Find the rate constant of this reaction (at 300K).
TLS Online TPP Program

#Question id: 15574

#Section 5: Bioprocess Engineering and Process Biotechnology

For the first-order reaction given by 2N2O5 → 4NO2 + O2 the initial concentration of N2O5 was 0.1M (at a constant temperature of 300K). After 10 minutes, the concentration of N2O5 was found to be 0.01M. Find the rate constant of this reaction (at 300K).