B7 Digestion And Absorption

Front 1

Ingestion

Back 1

Food taken into the mouth

Front 2

Digestion

Back 2

Enzymes break down large insoluble molecules into smaller soluble ones

Front 3

Egestion

Back 3

Removal of faeces

Front 4

Absorption

Back 4

The products of digestion are absorbed through the lining of the intestine

Front 5

Proteins hydrolysed into

Back 5

Amino acids

Front 6

Carbohydrates hydrolysed into

Back 6

Simple sugars e.g glucose

Front 7

Fats hydrolysed into

Back 7

A mixture of fatty acids and glycerol

Front 8

Carbohydrate digestion occurs in the

Back 8

Mouth and small intestine

Front 9

Protein digestion occurs in the

Back 9

Stomach and small intestine

Front 10

Fat digestion occurs in the

Back 10

Small intestine

Front 11

Function of amylase

Back 11

Hydrolyse starch into maltose

Front 12

Function of maltase

Back 12

Hydrolyse maltose into glucose

Front 13

Enzymes found in membranes of epithelia

Back 13

Maotase, sucrose, lactase

Hint 13

My salty lips

Front 14

Function of villi

Back 14

Contains microvilli and increase surface area for absorption

Front 15

Glucose absorption

Back 15

Glucose and sodium ions transported into epithelial cell by facilitated diffusion using co transporter protein. Sodium ions actively transported into blood to maintain blood concentration gradient. Glucose moves into blood by facilitated diffusion

Front 16

Function of endopeptidases

Back 16

Hydrolyse peptide bonds making proteins into smaller chunks

Front 17

Function of exopeptidases

Back 17

Hydrolyse near the end of the polypeptide chains, producing dipeptides

Front 18

Function of stomach acid

Back 18

Low pH for optimum pH of endopeptidases and also kills pathogens

Front 19

Function of dipeptidases

Back 19

Found in membrane of epithelial cells of the small intestine where they hydrolyse dipeptides into amino acids

Front 20

Function of sodium-potassium pump

Back 20

Used to transport sodium ions out of the cell by active transport

Front 21

Amino acid absorption

Back 21

Amino acids and sodium ions transported into epithelial cell by facilitated diffusion using co transporter protein. Sodium ions actively transported into blood to maintain blood concentration gradient. Amino acids moves into blood by facilitated diffusion

Front 22

Definition of emulsification

Back 22

Large fat globules broken down into small fat droplets by bile salts in bile

Hint 22

Droplets

Front 23

Reason for emulsification

Back 23

Increases the surface area available for lipase enzymes to digest the lipid

Hint 23

SA

Front 24

Define micelle

Back 24

Tiny droplets of monoglycerides, fatty acids, bile salts and phospholipids

Hint 24

My fat brother poos

Front 25

Role of micelle in lipid absorption

Back 25

Transport poorly soluble monoglycerides and long chain fatty acids to the surface of the epithelial cells

Front 26

Define chylomicron

Back 26

Water soluble fat droplets containing triglycerides, cholesterol and phospholipids

Front 27

How do chylomicrons enter the circulation?

Back 27

Via the lacteal