Topic 7.2 / Alimentary Canal

Question 1

Define ingestion

Answer 1

the taking of substances into the body through the mouth

Question 2

Define mechanical digestion

Answer 2

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

Question 3

Define chemical digestion

Answer 3

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

Question 4

Define absorption

Answer 4

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

Question 5

Define assimilation

Answer 5

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

Question 6

Define egestion

Answer 6

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

Question 7

Define diarrhea

Answer 7

Loss of watery feces