Which term describes the taking in of nutrients to provide materials for growth and tissue repair, including absorption and assimilation?

Which term describes the taking in of nutrients to provide materials for growth and tissue repair, including absorption and assimilation?

• A. Nutrition
• B. Excretion
• C. Respiration
• D. Ingestion

Answer: (A)

Nutrition is the process of taking in nutrients and turning them into materials the body needs for growth and tissue repair. It covers more than just eating; after ingestion, the nutrients are digested, absorbed through the gut into the bloodstream, and then assimilated by cells to build and repair tissues. Excretion is about removing waste, not supplying materials for growth. Respiration releases energy from nutrients, rather than providing the materials for tissue formation. Ingestion simply describes taking food in, while nutrition includes the whole sequence from intake to use by cells.

Nutrition is the process of taking in nutrients and turning them into materials the body needs for growth and tissue repair. It covers more than just eating; after ingestion, the nutrients are digested, absorbed through the gut into the bloodstream, and then assimilated by cells to build and repair tissues. Excretion is about removing waste, not supplying materials for growth. Respiration releases energy from nutrients, rather than providing the materials for tissue formation. Ingestion simply describes taking food in, while nutrition includes the whole sequence from intake to use by cells.