chapter 14

Question 1

classes of food

Answer 1

fats, protein, carbohydrates

Question 2

function of fats

Answer 2

source of energy as fats contains twice as much energy as carbohydrates

Question 3

function of carbohydrates

Answer 3

main source of the bodies energy

Question 4

function of proteins

Answer 4

help in growth of new cell and repair of damaged tissues is a source of energy

Question 5

physical digestion

Answer 5

is the breaking down of food into smaller pieces without the presence of enzymes

Question 5

chemical digestion

Answer 5

breaking down of large insoluble food substances into smaller soluble substances.

Question 6

digestive enzymes

Answer 6

made up of proteins , biological crystals to help speed up chemical rections

Question 7

carbohydrases

Answer 7

carbohydrates to simple sugar

Question 8

lipases

Answer 8

fats to fatty acid to glycerol

Question 9

proteases

Answer 9

proteins to amino acid

Question 10

liver

Answer 10

secretes bile which is important for physical digestion

Question 11

mouth

Answer 11

physical digestion is the teeth chewing the food chemical digestion is the use of the enzymes to help int the digestion of the food.

Question 12

small intestine

Answer 12

the use of the 3 chemicals which is lipases , proteases and amylase. secrets intestinal juice.

Question 13

gullet

Answer 13

is a strong muscular rube which would push down the food chemical digestion of carbohydrates.

Question 14

stomach

Answer 14

provides and acidic environment
for proteases to work , contains hydrochloric acid and proteases.

Question 15

large intestine

Answer 15

water and mineral salts are being absorbed in the large intestine . the undigested food which is feaces would be

Question 16

pancreases

Answer 16

secrete pancareas juice which contains fats carbohydrates.