#Question id: 641
#Unit 1. Molecules and their Interaction Relevant to 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: 6955
#Unit 5. Developmental Biology
In frogs, maternally packaged Xwnt-11 leads to nuclear localization of _____ in the _____, which in response signals to adjacent cells to become the _____.
#Question id: 1064
#Unit 4. Cell Communication and Cell Signaling
An infection in which the virus is continually present in the body is referred to as
#Question id: 1555
#Unit 4. Cell Communication and Cell Signaling
which type of amino acid in polypeptide position 9 is favoured interaction which MHC class 1?
#Question id: 913
#Unit 1. Molecules and their Interaction Relevant to Biology
The appropriate folding of a newly translated product is essential, and continual misfolding often leads to disease, especially in vertebrates. This misfolding, particularly in the situation of prion diseases, may be due to