Human nutrition Flashcards

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1
Q

Ingestion

A

The taking of substances, e.g. food and drink, into the body through the mouth

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2
Q

Mechanical digestion

A

The breakdown of food into smaller pieces without chemical change to the food molecules

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3
Q

Chemical digestion

A

The breakdown of large, insoluble molecules into small, soluble molecules

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4
Q

Absorption

A

The movement of small food molecules and ions through the wall of the intestine into the blood

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5
Q

Assimilation

A

The movement of digested food molecules into the cells of the body where they are used, becoming part of the cells

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6
Q

Egestion

A

The passing out of food that has not been digested or absorbed, as faeces, through the anus

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