To ensure turbulent conditions and minimum mixing time during agitation with a turbine impeller, the Reynolds number must be at least 10⁴. A stirred laboratory-scale fermenter with a turbine impeller 5 cm in diameter is operated at 800 rpm. If the density of broth being stirred is close to that of water, what is the upper limit for viscosity of the suspension if adequate mixing is to be maintained?

TLS Online TPP Program

#Question id: 8911

#Section 6: Plant, Animal and Microbial Biotechnology

The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

TLS Online TPP Program

#Question id: 8912

#Section 6: Plant, Animal and Microbial Biotechnology

Both animals and fungi are heterotrophic. What distinguishes animal heterotrophy from fungal heterotrophy is that only animals derive their nutrition

TLS Online TPP Program

#Question id: 8913

#Section 6: Plant, Animal and Microbial Biotechnology

The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

TLS Online TPP Program

#Question id: 8914

#Section 6: Plant, Animal and Microbial Biotechnology

Which of the following is (are) unique to animals?

TLS Online TPP Program

#Question id: 8915

#Section 6: Plant, Animal and Microbial Biotechnology

The number of legs an insect has, the number of vertebrae in a vertebral column, or the number of joints in a digit (such as a finger) are all strongly influenced by

TLS Online TPP Program

#Question id: 8916

#Section 6: Plant, Animal and Microbial Biotechnology

What do animals as diverse as corals and monkeys have in common?