Light reactions of photosynthesis are carried out by four major protein complexes: Photosystem I (PSI), photosystem II (PSII), the cytochrome b6f complex and ATP synthase. The following are certain statements on PSII:

a. Red light absorbed by photosystem II (PSII) produces a strong oxidant and a weak reductant.

b. Far-red light absorbed by photosystem II (PSI) produces a weak oxidant and a strong reductant.

c. The strong oxidant generated by PSII oxidizes water,

d. The strong reductant generated by PSII oxidizes water

Which one of the following combinations of the above statements is correct?

TLS Online TPP Program

#Question id: 31845

#Unit 12. Biochemical Engineering

The aspect ratio (based on height & diameter) of a tower reactor is

TLS Online TPP Program

#Question id: 31849

#Unit 12. Biochemical Engineering

Which one among the following CANNOT induce cell flocculation?

TLS Online TPP Program

#Question id: 31850

#Unit 12. Biochemical Engineering

Which one of the following is the Del factor value for sterilizing a culture medium containing 10¹¹ viable bacterial cells? 

TLS Online TPP Program

#Question id: 31851

#Unit 12. Biochemical Engineering

Exponential growth of a bacterial culture in batch mode is usually defined by the equation dX/dt = µX, where µ is

TLS Online TPP Program

#Question id: 31852

#Unit 12. Biochemical Engineering

During a fermentation process, the feed is sterilized using wet-heat sterilization method. What will happen to D-value, if the solute concentration in the feed increases by fourfold?

TLS Online TPP Program

#Question id: 31854

#Unit 12. Biochemical Engineering

The penicillin extraction process involves the following steps:

A. Extraction from the organic solvent into an aqueous buffer

B. Extraction from the aqueous buffer into an organic solvent

C. Extraction of penicillin from the filtered broth into organic solvent

D. Extraction of solvent to obtain penicillin salt

Choose the correct sequence of steps from the options given below :