AP BIOLOGY

Detailed explanation-1: -Organisms mainly use the molecules glucose and ATP for energy. Glucose is a compact, stable form of energy that is carried in the blood and taken up by cells. ATP contains less energy and is used to power cell processes. The flow of energy through living things begins with photosynthesis, which creates glucose.

Detailed explanation-2: -All living things need food to stay alive, grow, and get energy. Nutrition is the process by which living things get or make food. All animals get food by eating other living things. Herbivores eat plants, while carnivores eat other animals.

Detailed explanation-3: -Why Living Things Need Energy. Inside every cell of all living things, energy is needed to carry out life processes. Energy is required to break down and build up molecules, and to transport many molecules across plasma membranes. All of life’s work needs energy.

Detailed explanation-4: -All living organisms require energy to perform their life processes. Energy, as you learned earlier in the chapter about enzymes, is the ability to do work or to create some kind of change. You are familiar with or have learned about many processes that can require energy: Movement.

Detailed explanation-5: -Every organism needs to take food to get energy and to perform life processes. The living organism undergoes many life processes like nutrition, respiration, digestion, transportation, excretion, the circulation of blood, and also the reproduction.