E. coli have a maximum respiration rate, qO2max, of about 240-mg O2/g-dry wt-h. It is desired to achieve a cell mass of 20 g dry wt/l. The kLa is 120 h-1 in a 1000-l reactor (800 l working volume). A gas stream enriched in oxygen is used (i.e., 80% O2) which gives a value of C* = 28 mg/L. If oxygen becomes limiting, growth and respiration slow; for example,

                                     

   where CL is the dissolved oxygen concentration in the fermenter. What is CL when the cell mass is  at 20 g/l?

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#Question id: 14924

#Part-B Specialized Branches in Biotechnology

Which is NOT a characteristic that made peas useful as a model system for Mendel's studies?

TLS Online TPP Program

#Question id: 14960

#Part-B Specialized Branches in Biotechnology

How might the ability of pea plants to self fertilize be a problem for genetic experiments?

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#Question id: 14981

#Part-B Specialized Branches in Biotechnology

The endoplasmic reticulum has many important functions. It transports proteins, lipids, and probably other materials through the cell. The ER is also a major site of 

TLS Online TPP Program

#Question id: 14981

#Part-A Aptitude & General Biotechnology

The endoplasmic reticulum has many important functions. It transports proteins, lipids, and probably other materials through the cell. The ER is also a major site of 

TLS Online TPP Program

#Question id: 14982

#Part-B Specialized Branches in Biotechnology

A very important function of the Golgi apparatus and endoplasmic reticulum is the synthesis of another organelle, the lysosome. This organelle is found in a variety of organisms such as—

1.Protozoa 

2. Some algae

3. Fungi

4. Plants 

5. Animals

In which of the above organisms lysosome is not found.

TLS Online TPP Program

#Question id: 14983

#Part-B Specialized Branches in Biotechnology

A network of intermediate filaments, called the nuclear lamina, lies against the inner surface of the envelope and supports it. Which structure usually is associated with the inner membrane