unit 3

Question 1

do we absorb food or nutrients

Answer 1

nutrients

Question 2

digestion vd absorption

Answer 2

digestion= the process by which foods are broken down into into their component molecules, either mechanically or chemically

absorption= the physiologic process by which molecules of food cross form the gastrointestinal tract into circulation

Question 3

digestion the act of breaking down nutrients into their smallest parts

polymers to monomers

Answer 3

carbohydrates into glucose

fars(lipids) into fatty acid and glycerol
protein into amino acids

Question 4

what is bolus?

Answer 4

food that has been chewed and mixed in the mouth with salive

Question 5

what is the esophagus ?

Answer 5

a circular muscular tube connecting the pharnyx to the stomach

Question 6

what is pyloric sphincter?

Answer 6

a ring of smooth muscle that connects the stomach and small intestine

Question 7

what does the gastric glans does and where is it ?

Answer 7

gastric glands produce gastric juice that containing
water
pepsinogen, inactive form of protein
hydrochloric
it is in stomach

Question 8

name the 3 parts of the small intestine in order

Answer 8

1- duodenum
2-jejunum
2-lleum

Question 9

what does liver produce ? why does it do ?

Answer 9

liver produce bile and it is stored in the gallbladder

bile is lipids(fats) to aid digestion
makes particles small enough so pancreatic lipases can break the bonds releasing glycerol and fatty acids

Question 10

what dies bile is

Answer 10

bile are lipids(fars) that breaks fats in small particles fatty acids and glycerol

Question 11

jejunum where ?

Answer 11

where the absorption takes place the most

Question 12

enzymes

Answer 12

proteines that helps speed up chemical reaction in our bodies

Question 13

mouth - amylase(carbohydrates)
stomach- pepsinogen(proteines)
liver-biles(fats)

Question 14

what are the 5 parts of the gi tract?

Answer 14

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