Question

25 digested food molecules move into the cells of the body where they are used and become part of the cells.

which process does the statement describe?

a absorption
b assimilation
c digestion
d ingestion

Explanation:

Analyze the given statement

The statement describes a biological process: "Digested food molecules move into the cells of the body where they are used and become part of the cells." We need to identify which of the four options (absorption, assimilation, digestion, ingestion) matches this description.

Define each option

Let's break down the definitions of the four processes:

• Ingestion: The taking of substances, e.g., food and drink, into the body through the mouth.
• Digestion: The breakdown of large, insoluble food molecules into small, water-soluble molecules using mechanical and chemical processes.
• Absorption: The movement of digested food molecules and ions through the wall of the intestine into the blood.
• Assimilation: The movement of digested food molecules into the cells of the body where they are used, becoming part of the cells.

Match the statement to the correct process

The statement explicitly mentions that the molecules "move into the cells of the body where they are used and become part of the cells." This matches the definition of assimilation perfectly.

• Absorption only refers to the movement of nutrients into the bloodstream/lymphatic system, not their uptake and utilization by body cells to become part of them.
• Therefore, the correct option is B.

Answer:

• A absorption
• B assimilation (Correct answer)
• C digestion
• D ingestion