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TLS Online TPP Program

#Question id: 2154

Membrane lipids are distributed appropriately between the two leaflets of a given membrane by

a. dockases.    

b. trumpases.              

c. fatty acid desaturases.        

d. flippases.    

e. transmembrane tunnelases.

#Section 2: General Biology

  1. a    

  2.  b      

  3. c    

  4. d

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TLS Online TPP Program

#Question id: 24082

#Section 5: Bioprocess Engineering and Process Biotechnology

For the rate law Rate = k[A]1/2[B], the partial order with respect to A is __________, the partial order with respect to B is __________, and the total order is __________.
TLS Online TPP Program

#Question id: 14619

#Section 5: Bioprocess Engineering and Process Biotechnology

a chromatographic separation of a two component samples on 50 cm column gave the retention times for the solutes A and B as 2.5 and 3.1 minutes with base widths of the two chromatographic peaks being 0.24 and 0.3 min respectively, calculate the number of theoretical plates 
TLS Online TPP Program

#Question id: 14299

#Section 5: Bioprocess Engineering and Process Biotechnology

A two-stage chemostat system is used for production of secondary metabolite. The volume of each reactor is 0.5 m3; the flow rate of feed is 50 l h- 1. Mycelial growth occurs in the first reactor; the second reactor is used for product synthesis. The concentration of substrate in the feed is 10 gl-1. Kinetic and yield parameters for the organism are:

                                                        

Assume that product synthesis is negligible in the first reactor and growth is negligible in the second reactor. What is the final concentration of product?

___________

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: 14542

#Section 1: Engineering Mathematics

The discontinuity of the function  = 0, x = 0 at the origin is known as