Explain the process of assimilation with examples.

Assimilation is the process by which absorbed nutrients are utilized by body cells for energy, growth, repair, and maintenance.

After digestion and absorption, nutrients such as glucose, amino acids, and fatty acids are transported through the bloodstream to different parts of the body. These nutrients are then taken up by cells and converted into useful substances.

For example, glucose is used by cells to produce energy through respiration. Amino acids are used to build proteins required for growth and repair of tissues. Fatty acids and glycerol are used for energy storage and insulation.

Assimilation ensures that the nutrients obtained from food are effectively used by the body to support various biological functions.

Thus, it is a vital step in nutrition that connects digestion with actual utilization of nutrients.