Question

In electrophoresis, positively charged proteins will move toward which electrode?

1) Anode
2) Cathode
3) Both Anode and Cathode
4) None of the above

Answer 1

In electrophoresis, positively charged proteins move toward the cathode, which is the negatively charged electrode.

Step-by-step explanation:

In electrophoresis, the movement of charged particles is influenced by an electric field. Positively charged proteins are attracted to the negative electrode due to their opposite charge. In a typical electrophoresis setup, the negative electrode is known as the cathode, while the positive electrode is referred to as the anode. Therefore, positively charged proteins will move toward the cathode, which is the negatively charged electrode. This principle is not only applicable to proteins but also to other charged biological molecules such as DNA, which moves towards the anode because it is negatively charged.