If global warming continues at its present rate, which biomes will likely take the place of the coniferous forest (taiga)?

#Question id: 1114

#SCPH01 Biochemistry

Sutherland discovered that the signaling molecule epinephrine is responsible for which of the following events?

#Question id: 6957

#SCPH01 Biochemistry

The effect of grafting an extra piece of notochord into a dorsal position adjacent to pre-somitic mesoderm is

#Question id: 1584

#SCPH01 Biochemistry

Which cell type interacts with both the humoral and cell-mediated immune pathways?

#Question id: 1593

#SCPH01 Biochemistry

Which of the following results in long-term immunity?

#Question id: 14271

#SCPH05 I 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.