Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;

TLS Online TPP Program

#Question id: 15582

#Section 4: Fundamentals of Biological Engineering

The oxygen transfer rate in an aerobic fermentation process does not depend on the

TLS Online TPP Program

#Question id: 15583

#Section 4: Fundamentals of Biological Engineering

The dissolved oxygen concentration during the measurement of K_La by sodium sulphite method is

TLS Online TPP Program

#Question id: 15584

#Section 4: Fundamentals of Biological Engineering

Increasing the agitation in a reactor increases oxygen transfer primarily because:

TLS Online TPP Program

#Question id: 15585

#Section 4: Fundamentals of Biological Engineering

A stirrer has a power number (Np) 10. If the stirrer speed (N) is 1 s^-1 , its diameter D= 1 m and the density of the medium is 1000 kg/m3, the ungassed power input (P) in watts is

TLS Online TPP Program

#Question id: 15586

#Section 4: Fundamentals of Biological Engineering

In SI system, the unit of thermal conductivity is

TLS Online TPP Program

#Question id: 15587

#Section 4: Fundamentals of Biological Engineering

Under unaerated conditions in a fermenter, the power consumed by a single impeller is 10 KW and upon changing the agitation rate from 200 to 600 rpm, the new power consumption (KW) would be -----. (Assuming that the power number remains constant)