digestive system

Question 1

digestive system function

Answer 1

breaks down food masses into substances that can be absorbed by the circulatory system

Question 2

carbohydrates

Answer 2

main source of energy

found in whole grains, root vegetables, plants

Question 3

fats

Answer 3

found in nuts, seeds, oils

Question 4

proteins

Answer 4

build and repair

found in meat, eggs, cheese

Question 5

minerals

Answer 5

inorganic compounds the body needs in small amount
different minerals are found in different foods
milk (calcium), salt (sodium) banana (potassium)

Question 6

vitamins

Answer 6

organic nutrients the body needs for certain reactions to take place
found in food, sunlight (D), bacteria in intestine (K,B)

Question 7

water

Answer 7

solvent in body, maintains fluidity and cell structure, cools body, etc
need 2.4L per day

Question 8

pathway of food

Answer 8

mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, anus

Question 9

mechanical digestion

Answer 9

initial step of digestion by breaking it down into smaller pieces
occurs in mouth (teeth, tongue), esophagus (peristalsis), stomach (3 layer muscles) and intestines (peristalsis)

Question 10

chemical digestion

Answer 10

digestion by chemicals breaking food down into molecular components that can be absorbed
occurs in mouth (salivary glands), stomach (HCL) and small intestine (digestive enzymes)

Question 11

ingestion

Answer 11

taking food into the mouth, chewing and swallowing

Question 12

digestion

Answer 12

process of breaking food down into smaller molecules
mechanical/chemical
regulated by enzymes

Question 13

absorption

Answer 13

process of transferring nutrients from tract into the blood

Question 14

elimination

Answer 14

process of removing unabsorbed food from the body