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TLS Online TPP Program

#Question id: 2503

Which of the following is true about intermediate filaments?

#Section 3: Genetics, Cellular and Molecular Biology

  1. They are named based on their location in cells between actin microfilaments and microtubules.

  2. All cells express the same class II cytoplasmic intermediate filament proteins.

  3. Staggered, antiparallel tetramers give intermediate filaments strength.

  4. Acidic and basic keratins provide dynamic paths on which organelles may travel.

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TLS Online TPP Program

#Question id: 27185

#Section 5: Bioprocess Engineering and Process Biotechnology

The reaction rate is defined as the rate at which the concentration of the reactants___with time or the concentration of products ___ with time.
TLS Online TPP Program

#Question id: 27186

#Section 5: Bioprocess Engineering and Process Biotechnology

If the zero order reaction takes 100 min for 50% completion, how much time will it take for the 75% completion of the reaction?
TLS Online TPP Program

#Question id: 27187

#Section 5: Bioprocess Engineering and Process Biotechnology

A zero order reaction in A has a rate constant of 0.003 molL-1sec-1. How long will it take for A’s initial concentration to fall from 0.10 M to 0.075 M?
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: