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TLS Online TPP Program

#Question id: 324

Why are hydrocarbons insoluble in water? 

#Section 2: General Biology

  1. The majority of their bonds are polar covalent carbon-to-hydrogen linkages.

  2. The majority of their bonds are nonpolar covalent carbon-to-hydrogen linkages.

  3. They exhibit considerable molecular complexity and diversity. 

  4. They are less dense than water. 

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TLS Online TPP Program

#Question id: 3554

#Section 3: Genetics, Cellular and Molecular Biology

The diploid cell with 6 pairs of chromosomes can divide. How many possible different combinations of maternal and paternal chromosomes in metaphase?
TLS Online TPP Program

#Question id: 12682

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

The Human Genome contains the blueprint for human development and maintenance, ultimately providing the means to understand ________.
TLS Online TPP Program

#Question id: 27177

#Section 5: Bioprocess Engineering and Process Biotechnology

A strain of Azotobacter vinelandii is cultured in a 15-m³ stirred fermenter for alginate produc- tion. Under current operating conditions, kLa is 0.17 s-1. The solubility of oxygen in the broth is approximately 8 × 10-3 kg m-3.
(b) The bacteria suffer growth inhibition after copper sulphate is accidentally added to the fermentation broth just after the start of the culture. This causes a reduction in the oxygen uptake rate to 3 mmol g-1 h-1. What maximum cell concentration can now be supported by oxygen transfer in the fermenter?.....g/l
TLS Online TPP Program

#Question id: 2064

#Section 2: General Biology

What kinds of molecules pass through a cell membrane most easily?
TLS Online TPP Program

#Question id: 373

#Section 4: Fundamentals of Biological Engineering

What is the hydroxyl ion (OH-) concentration of a solution of pH 8?