Question

In which of the following alternatives, the correct order of nutrition is given?

• A. Assimilation $\to$ Absorption $\to$ Digestion $\to$ Ingestion $\to$ Egestion
• B. Absorption $\to$ Digestion $\to$ Ingestion $\to$ Assimilation $\to$ Egestion
• C. Digestion $\to$ Ingestion $\to$ Assimilation $\to$ Absorption $\to$ Egestion
• D. Ingestion $\to$ Digestion $\to$ Absorption $\to$ Assimilation $\to$ Egestion

Answer 1

The correct option is D Ingestion $\to$ Digestion $\to$ Absorption $\to$ Assimilation $\to$ Egestion

• There are five steps in holozoic (organic food is taken from outside) nutrition - ingestion, digestion, absorption, assimilation, and egestion.
• Ingestion is the process the food is taken inside through the mouth and broken down by teeth and digestion begins in the mouth by saliva.
• Digestion is the process in which food is digested by few enzymes and is used by the cells for producing energy.
• Absorption is the process in which cells use the energy from the digested food and helps in building tissues in the body.
• Assimilation is the process in which digested food moves into the cells of the body.
• Egestion is the process in which undigested food is removed out from the body through excretion.

So, the correct answer is option D.