are #Question id: 15895
#Section 6: Plant, Animal and Microbial Biotechnology
#Question id: 4718
#Section 3: Genetics, Cellular and Molecular Biology
All the following statements about destruction of cyclins are true, except:
#Question id: 14271
#Section 5: Bioprocess Engineering and Process Biotechnology
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. Determine the concentration of cells at quasi-steady state when t = 10 h.
#Question id: 14620
#Section 2: General Biology
#Question id: 198
#Section 2: General Biology
NAD and NADP dependent dehydrogenases catalyze substrates by transferring ________ to C-4 of NAD+ and NADP+.