Chapter 7 Flashcards
Human Nutrition (8 cards)
Absorption
The movement of nutrients from the intestines into the blood
Assimilation
The uptake and use of nutrients by cells
Balanced diet
Diet that contains all the essential nutrients in the correct proportions to maintain good health. The nutrients needed are carbohydrate, fat, protein, vitamins, minerals ions, fibre (roughage) and water
Chemical digestion
The breakdown of large insoluble molecules into small soluble molecules
Digestion
The breakdown of food
Egestion
The passing out of food that has not been digested or absorbed, as faeces through the anus
Ingestion
The taking of substances (e.g. food, drink) into the body through the mouth
Physical digestion
The breakdown of food into smaller pieces without chemical change to the food molecules