What knowledge have you connected with past knowledge?

Each lecture of biochem has so far been a review of what has already been briefly touched on in general biology or in general chemistry, however, goes in to much greater detail and allows me to relate more concepts together that possibly were not as clear when I first heard of them. In the first week of class we thoroughly studied water and it's important properties pertaining to biochemistry. Not too much of a connection here with other knowledge because the basis of what was covered was mainly review from previous courses. The review did go into detail of what was already known but was forgotten. For instance, the interactions of water and other molecules as well as the solubility of water and it's properties. The second lecture we started in on talking about amino acids and proteins. This was also a review, at the beginning, but then went into a greater amount of detail about the forms of amino acids and the prevailing structures of proteins. Much of my past knowledge used in this section of study was gathered from general chemistry lab when we would practice titration using buffers and then having to graph the concentration vs. pH levels. One other thing I remember about common relations on this topic was how some everyday spoken proteins come about such as MSG (monosodium glutamate from glutamic acid) found in food to enhance flavor and histamine (converted from histadine) that is a natural immune response in our respiratory system. The following topic we went into was about proteins as enzymes. The previous knowledge that I had recollect was the action presented by a catalyst. Catalyst are a more efficient way to use in a reaction. This I remember from both general bio and chemistry in lab and lecture.