Lactobacillus casei is propagated under essentially anaerobic conditions to provide a starter culture for manufacture of Swiss cheese. The culture produces lactic acid as a by-product of energy metabolism. The system has the following characteristics:

                                                                 

 

A stirred fermenter is operated in fed-batch mode at quasisteady state with a feed flow rate of 4 m³ h^-1 and feed substrate concentration of 80 kg m^-3. After 6 h, the liquid volume is 40 m³. What mass of cells is produced after 6 h fed-batch operation?

                               __________________

TLS Online TPP Program

#Question id: 15715

#Section 6: Plant, Animal and Microbial Biotechnology

In embryogenesis a type of structure with no vascular connection with the maternal callus tissue or explants is formed

TLS Online TPP Program

#Question id: 15726

#Section 6: Plant, Animal and Microbial Biotechnology

Tissues and cells cultured in a liquid medium produce culture of single cells and cells clumps of few to many cells

TLS Online TPP Program

#Question id: 15727

#Section 6: Plant, Animal and Microbial Biotechnology

The stationary phase is forced on the culture by , identify correct option

1. Depletion of the nutrients

2. Due to accumulation of cellular wastes

3. Accumulation of the nutrients

4. Removal of cellular wastes

TLS Online TPP Program

#Question id: 15728

#Section 6: Plant, Animal and Microbial Biotechnology

Single cells can be cultured using the following techniques:

(1) Filter paper raft-nurse tissue technique

(2) Microchamber technique

(3) Microdrop method

(4) Bergman's plating technique

(5) Thin layer liquid medium

Select the option with correct choices.

TLS Online TPP Program

#Question id: 15730

#Section 6: Plant, Animal and Microbial Biotechnology

Haploid plants may be obtained from culturing

1) Anther culture

2) Pollen culture

3) Stem culture

4) Ovary culture

TLS Online TPP Program

#Question id: 15731

#Section 6: Plant, Animal and Microbial Biotechnology

Conditions for rooting involves

1. low salt

2. reduced sugar level

3. addition of NAA

Which of the above statements combinations are correct