Question

Why do organisms need to obtain energy via cellular respiration?

Answer 1

Organisms require energy to perform various cellular functions such as growth, maintenance, and movement. Cellular respiration is a process that converts the energy stored in food molecules (glucose) into a form of energy that cells can use (ATP). ATP is essential for powering the metabolic functions of cells, such as protein synthesis, DNA replication, and cell division.

In simpler terms, cellular respiration is the process that allows cells to generate energy in a usable form, without which they cannot survive. Hence, organisms need to obtain energy via cellular respiration to perform essential life processes.