Penicillin is produced by P. chrysogenum in a fed-batch culture with the intermittent addition of glucose solution to the culture medium. The initial culture volume at quasi-steady state is V0 = 500 l, and glucose-containing nutrient solution is added with a flow rate of F = 50 l/h. Glucose concentration in the feed solution and initial cell concentration are S0 = 300 g/l and X0 = 20 g/l, respectively. The kinetic and yield coefficients of the organism are mm = 0.2 h-1 , KS = 0.5 g/l, and YX/S = 0.3 g dw/g glucose. If qP = 0.05 g product/g cells h and P₀ = 0.1 g/l, determine the product concentration in the vessel at t = 10 h

#Question id: 11279

#Part-B Specialized Branches in Biotechnology

Ecosystem A: Actual link 10, number of species 15  

Ecosystem B: Actual link 10, number of species 20   

Connectance of ecosystem A and B

#Question id: 11280

#Part-B Specialized Branches in Biotechnology

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

#Question id: 11280

#Part-B Specialized Branches in Biotechnology

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

#Question id: 11281

#Part-B Specialized Branches in Biotechnology

Owls eat rats, mice, shrews, and small birds. Assume that, over a period of time, an owl consumes 5,000 J of animal material. The owl loses 2,300 J in feces and owl pellets and uses 2,500 J for cellular respiration. What is the production efficiency of this owl?

#Question id: 11281

#Part-B Specialized Branches in Biotechnology

Owls eat rats, mice, shrews, and small birds. Assume that, over a period of time, an owl consumes 5,000 J of animal material. The owl loses 2,300 J in feces and owl pellets and uses 2,500 J for cellular respiration. What is the production efficiency of this owl?

#Question id: 11282

#Part-B Specialized Branches in Biotechnology

Which of the following ecosystems would likely have the largest net primary productivity per hectare and why?