Question

Write half a page about why ATP is considered the energy-producing molecule and not GTP, CTP, or TTP

Answer 1

Over the years, many proteins have specialized with a specific shape, and this chance is the primary reason behind ATP over GTP. In other words, the choice of ATP over GTP is primarily down to cellular preference of molecular shape. One of them had to emerge as being more widely used, and it was ATP that 'won'.