#Question id: 316
#Section 2: General Biology
Which of these noncovalent forces in biological systems is usually the strongest?
#Question id: 19914
#Section 5: Bioprocess Engineering and Process Biotechnology
#Question id: 641
#Section 2: General Biology
Which of the following does NOT describe a mechanism that cells use to regulate enzyme activities?
A. Cells control enzyme activity by phosphorylation and dephosphorylation.
B. Cells control enzyme activity by the binding of small molecules.
C. Cells control the rates of diffusion of substrates to enzymes.
D. Cells control the rates of enzyme degradation.
E. Cells control the rates of enzyme synthesis.
F. Cells control the targeting of enzymes to specific organelles.
#Question id: 142
#Section 2: General Biology
Histidine has pKa values of 1.8, 6.0 (R-group) and 9.3 . At pH 8.0, the net charge on histidine is
#Question id: 14745
#Section 5: Bioprocess Engineering and Process Biotechnology