Suppose that an aspartic acid (aspartate) residue in the active site of an enzyme was mutated to alanine. As expected, the alanine mutant was inactive, suggesting that the aspartic acid residue was critical to the catalytic mechanism.
Which mutation is most likely to restore wild-type level of activity to the alanine mutant?

a) A toY
b) A to E
c) A toL
d) A to M
e) A to K

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?