TLS Online TPP Program

#Question id: 2074


In some cells, there are many ion electrochemical gradients across the plasma membrane even though there are usually only one or two proton pumps present in the membrane. The gradients of the other ions are most likely accounted for by:

#Section 3: Genetics, Cellular and Molecular Biology
  1. cotransport proteins

  2. ion channels

  3. pores in the plasma membrane

  4. passive diffusion across the plasma membrane

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TLS Online TPP Program

#Question id: 27188

#Section 5: Bioprocess Engineering and Process Biotechnology

k for a zero order reaction is 2×10-2 mol/L s. If the concentration of the reactant after 25s is 0.5 M. Calculate the initial concentration of the reactant.

TLS Online TPP Program

#Question id: 27189

#Section 5: Bioprocess Engineering and Process Biotechnology

How long will it take for the initial concentration of A to fall from 0.20 M to 0.075, if the rate constant for a reaction of zero-order in A is 0.035 mol L–1 s–1.

TLS Online TPP Program

#Question id: 27190

#Section 5: Bioprocess Engineering and Process Biotechnology

A substrate is consumed in a zero order reaction such that the concentration falls from 40 g/l to 20 g/l in 4 h. How long will it take the substrate to fall from 20 g/l to 2 g/l:

TLS Online TPP Program

#Question id: 27191

#Section 5: Bioprocess Engineering and Process Biotechnology

The half-life of a zero order reaction is 30 minutes. What is the concentration of the reactant left after 60 minutes?

TLS Online TPP Program

#Question id: 27192

#Section 5: Bioprocess Engineering and Process Biotechnology

Q) For a single substrate reaction, doubling the substrate concentration increases the rate by 10 fold. The order of the reaction is

TLS Online TPP Program

#Question id: 27193

#Section 5: Bioprocess Engineering and Process Biotechnology

In a first order reaction, 10% of the reactant is consumed in 25 minutes. Calculate : 
(1) The half-life period of the reaction