The Body At Work- digestive system

Question 1

functions of the digestive system

Answer 1

break down of food into smaller and smaller molecules

collecting waste product for disposal

Question 2

role of mouth in digestion

Answer 2

ingestion and digestion.

mechanical (chewing) and chemical (enzymes in saliva)

Question 3

role of S intestine in digestion

Answer 3

absorption and transfer of molecules to the blood

Question 4

role of stomach in digestion

Answer 4

digestion mechanical (stomach muscles) and chemical (acids, enzymes, hormones, insulin and bile)

Question 5

role of L intestine in digestion

Answer 5

absorption and excretion. absorbs Na and excretes waste products

Question 6

short term effects of exercise on digestive system

Answer 6

. blood diverts to the heart, lungs and working muscles away from parts of the digestive system
. improves digestion process by strengthening muscles, which in turn make it easier to pass food around the body
. slow down digestive system to conserve energy for exercise