human nutrition

Question 1

digestion

Answer 1

physical and chemical breakdown of food into smaller units

Question 2

why is digestion needed

Answer 2

the material needed for growth and repair found in food

Question 3

👄physical digestion

Answer 3

teeth and tongue
crushing and grinding

Question 4

👄-food crushed into…

Answer 4

bolus

Question 5

👄chemical figestion

Answer 5

saliva.
contains enzymes (amylase) and mucous

Question 6

👄-

Answer 6

amylase
starch->maltose

Question 7

teeth-32

Answer 7

incisors-cutting and slicing
canines-grip and tear
premolars-crush and grind
molars-crush and grind

Question 8

stomach
physical

Answer 8

muscular-walls of stomach-churns food

Question 9

stomach-chemical

Answer 9

enzyme-biological catalyst

Question 10

stomach-protein

Answer 10

amino acids

Question 11

cells in stomach produce

Answer 11

HCI and pepsinogen inactive form of enzyme pepsin
mucous-protects stomach

Question 12

pancreas

Answer 12

enzymes made in pancreas but act in small intestine

Question 13

liver

Answer 13

found in abdominal cavity

Question 14

liver produces

Answer 14

bile
stored and concentrated in gall bladder

Question 15

position of liver

Answer 15

behind, to the right above stomach

Question 16

functions of liver

Answer 16

bile emusifies fats/lipids

Question 17

small intestine-chyme

Answer 17

liquid acidic substance enter S.I. secretions from liver + pancreas act on chyme

Question 18

upper section is in the Dvodenum

Answer 18

most digestion occurs

Question 19

lower section is the Ileum

Answer 19

absorption of food into blood

Question 20

small intestine is the..

Answer 20

final stage of digestion