This isn't a homework question I'm just curious.

Why doesn't atp play a role in energy transfer in living things?

I have no idea if this will help or not, but here goes:

http://www.answers.com/topic/what-is-atp

I thought it did.

http://en.wikipedia.org/wiki/Adenosine_triphosphate

ATP (adenosine triphosphate) does play a central role in energy transfer in living things. It is often referred to as the "energy currency" of the cell because it provides the necessary energy for various cellular processes.

To understand why ATP is involved in energy transfer, we need to look at the structure and function of ATP. ATP consists of three phosphate groups linked to an adenosine molecule. The high-energy bonds between these phosphate groups store the energy required for cellular activities.

When energy is needed for a specific cellular process, such as muscle contraction or active transport, ATP is hydrolyzed. This means that one of the phosphate groups is removed, resulting in the formation of adenosine diphosphate (ADP) and inorganic phosphate (Pi). This hydrolysis reaction releases energy, which can be used by the cell to perform work.

The released energy is utilized by various cellular processes, allowing for a wide range of activities such as biosynthesis, muscle contraction, nerve impulse transmission, and active transport across cell membranes. Once the ATP molecule has been used, it can be regenerated through cellular respiration or other metabolic pathways to replenish the supply for future energy needs.

In summary, ATP is essential for energy transfer in living organisms because it acts as a carrier of chemical energy. Through its hydrolysis, ATP provides the energy needed for numerous cellular processes, making it a crucial molecule for the functioning and survival of living things.