Plants need energy to move materials in and out of the cell make chemicals grow develop and reproduce asexually. Cells get energy from food by the process in which cells break down food and release energy in chemical bonds. Energy From The Sun Video Video Reading Comprehension Practice Comprehension Practice Reading Comprehension Yes the basic answer comes to my mind. . Plants are known as sessile organisms that is organisms that grow on some substratum and do not actively move from it in their entire lifespan. They cannot move from one place to other like humans. So the only option left for plants to protect themselves is rigidity of cells. Plants Don T Move Around So Why Do They Need EnergyThey need energy because they are living things. There are many different processes that go on in plants and animals that require energy. I wonder what makes them grow. Plants are able to feed themselves with solar ene...