What is holozoic nutrition

Holozoic nutrition: It is a process by which animals take in their food. It involves different steps namely, ingestion, digestion, absorption, assimilation and egestion. Human beings exhibit holozoic mode of nutrition involving five basic steps.

• Ingestion: The process of taking food into the body is called ingestion.
• Digestion: the process in which the food containing large, insoluble molecules is broken down into small, water soluble molecules is called digestion.
• Absorption: The process in which the digested food passes through the intestinal wall into blood stream is called absorption.
• Assimilation: The process in which the absorbed food is taken in by the body cells and used for energy, growth and repair is called assimilation.
• Egestion: The process in which the undigested food is removed from the body is called egestion.