How do cells get energy to perform their necessary functions?

Cells get energy to perform their necessary functions by taking in nutrients from food. During the digestive process, nutrients from food are broken down and used to synthesize sugar, or glucose, molecules. When the glucose is broken down, a lot of energy is created. This energy is then used for various cell functions.

Explanation:

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.