Some herbicides such as dichlorophenyldimethylurea (DCMU, also known as diuron) and paraquat, block photosynthetic electron flow from where ?

a.) DCMU blocks electron flow at the quinone acceptors of PSII, by competing for the binding site of plastoquinone that is normally occupied by PQB

b.) Paraquat accepts electrons from the early acceptors of PSI and then reacts with oxygen to form superoxide, O2 – , a species that is very damaging to chloroplast components

c.) DCMU blocks electron flow at the pheophytin acceptors of PSII, by competing for the binding site of pheophytin

d.) Paraquat accepts electrons from the Iron-sulfur system of PSI and then reacts with oxygen to form superoxide, O2 – , a species that is very damaging to chloroplast components

Which of the following combination is true?

TLS Online TPP Program

#Question id: 19909

#Section 5: Bioprocess Engineering and Process Biotechnology

Mixing in an anaerobic sludge blanket reactor is due to

TLS Online TPP Program

#Question id: 19910

#Section 5: Bioprocess Engineering and Process Biotechnology

Immobilized cell reactors for wastewater treatment have the advantage of having/being

TLS Online TPP Program

#Question id: 19911

#Section 5: Bioprocess Engineering and Process Biotechnology

Which of the statement is true for continuous reactor at steady state?

TLS Online TPP Program

#Question id: 19912

#Section 5: Bioprocess Engineering and Process Biotechnology

For organisms growing in a chemostat, the specific growth rate

TLS Online TPP Program

#Question id: 19913

#Section 5: Bioprocess Engineering and Process Biotechnology

Saccharomyces cerevisiae is being grown in a chemostat converts glucose to biomass, ethanol, glycerol and carbon dioxide. At steady state, the concentration of glucose, biomass, ethanol and glycerol will

TLS Online TPP Program

#Question id: 19914

#Section 5: Bioprocess Engineering and Process Biotechnology

In aerobic yeast fermentation for production of citric acid from alkanes using a fed-batch culture, why alkanes are slowly fed to the yeast?