Question

What are the four steps in the digestion process?

1) Ingestion, mechanical breakdown of food, absorption of food, and elimination of water.
2) Ingestion, chemical breakdown of food, nutrient absorption, and elimination of nutrients.
3) Ingestion, mechanical and chemical breakdown of food, nutrient absorption, and elimination of waste.
4) All of the above
5) None of the above

Answer 1

The four steps of the digestion process are ingestion, mechanical and chemical breakdown of food, nutrient absorption, and elimination of waste.

Step-by-step explanation:

When considering the four steps in the digestion process, the correct sequence is: 1) Ingestion, where food is taken into the body through the mouth; 2) Mechanical and chemical breakdown of food, which includes both the physical breaking down of food into smaller pieces (mechanical digestion) and the enzymatic breakdown into smaller nutrient molecules (chemical digestion); 3) Nutrient absorption, in which these small molecules are absorbed into the bloodstream primarily in the small intestine; and 4) Elimination of waste, which involves the removal of indigestible substances from the body. Therefore, the correct answer to the question asked by the student is option 3) Ingestion, mechanical and chemical breakdown of food, nutrient absorption, and elimination of waste.