[问答题]
The image below shows thm:hy5yv 0dv/b e catalytimuo;6 yh 2 iy(rdbftiq 232yy-c site of an enzyme. The substrate is shown in black and is bounouy yd;-y2f2ib h32t6imryq( d to the active site.
1.State how the activation energy is changed by adding an enzyme to a reaction.
2.Distinguish between anabolic and catabolic pathways.