In a sequence database of a given size, which of the following expressions is likely to retrieve more matches (X means any amino acid; any of the residues in square brackets can occupy that position)?

#Question id: 27175

#Section 5: Bioprocess Engineering and Process Biotechnology

A bacterial culture having a specific oxygen uptake rate of 5 mmol O2 (g- DCW)^-1h-1 is being grown aerobically in a fed-batch reactor. The maximum value of the volumetric oxygen transfer coefficient is 0.18 s for the stirred tank bioreactor and the critical dissolved oxygen concentration is 20% of the saturation concentration (8 mg L^-1). The maximum density to which the cells can be grown in the fed-batch process, without the growth being limited by oxygen transfer, is approximately

#Question id: 2144

#Section 2: General Biology

The type of membrane transport that uses ion gradients as the energy source is:

#Question id: 408

#Section 2: General Biology

Which of the following compounds has the largest negative value for the standard free-energy change (DG'°) upon hydrolysis?

#Question id: 35

#Section 2: General Biology

Arrange the following molecular components of an E. coli cell in terms of their percentage of total weight cell.

#Question id: 14562

#Section 2: General Biology