Nicotiana tabacum cells are cultured to high density for production of polysaccharide gum. The reactor used is a stirred tank, containing initially 100 litres medium. The maximum specific growth rate of the culture is 0.18 d^-1 and the yield of biomass from substrate is 0.5 g g^-l. The concentration of growth-limiting substrate in the medium is 3% (w/v). The reactor is inoculated with 1.5 g l^{- 1} cells and operated in batch until the substrate is virtually exhausted; medium flow is then started at a rate of 4 l d^-1. Fed-batch operation occurs under quasi-steady-state conditions. Estimate the batch culture time.                                  ____________________

TLS Online TPP Program

#Question id: 2279

#SCPH05 I Biotechnology

Mitochondrial enzymes for oxidative metabolism are

TLS Online TPP Program

#Question id: 22954

#SCPH01 Biochemistry

According to the which Model, floral organ identity is regulated by tetrameric complexes of the ABCE proteins

TLS Online TPP Program

#Question id: 292

#SCPH05 I Biotechnology

Which of the following types of non-covalent bonds or interactions is responsible for forming the α helix and β sheet secondary structural motifs of a protein:

TLS Online TPP Program

#Question id: 12585

#SCPH06 I Botany

Agricultural lands frequently require nutritional supplementation because

TLS Online TPP Program

#Question id: 19201

#SCPH06 I Botany

Biocatalytic reactions that can be assayed by ion-selective electrode biosensors could be

1. Conversion of urea into ammonium ions

2. Lipid breakdown into fatty acids and hydrogen ions

3. Conversion of glucose into gluconic acid

4. Glucose breakdown into acetyl coA

Which of the above statements are incorrect?