Final answer:
We need energy to. Organisms require energy for various processes in the body, such as breaking down nutrients, generating and storing energy, synthesizing cellular building blocks, and eliminating waste and harmful substances. Absorb nutrients is energy is needed for the active transport of nutrients across cell membranes.
Step-by-step explanation:
The subject of this question is Biology. In order to perform tasks such as powering muscles, pumping blood, absorbing nutrients, exchanging respiratory gases, synthesizing new molecules, and establishing cellular ion concentrations, organisms require energy. Energy is needed for various processes in the body, such as breaking down nutrients, generating and storing energy, synthesizing cellular building blocks, and eliminating waste and harmful substances.
Power muscle energy is required for muscle contraction and movement. Pump blood is the heart requires energy to pump blood throughout the circulatory system. Absorb nutrients is energy is needed for the active transport of nutrients across cell membranes. Exchange respiratory gases is cellular respiration, which involves the exchange of respiratory gases (oxygen and carbon dioxide), requires energy. Synthesize new molecules is energy is necessary for various biosynthetic processes, including the synthesis of new molecules within cells. Establish cellular ion concentrations is maintaining ion gradients across cell membranes, which is crucial for cellular function, requires energy.