Digestion

Question 1

OESOPHAGUS

Answer 1

NO BREAKDOWN.

Joins mouth to stomach, food passes through by perystalsis.

Question 2

STOMACH

Answer 2

Physical: Churns food into chyme. (It’s a muscular bag)
Chemical: Pepsin is produced, changing protein to peptide chains. Acid helps pepsin work, it’s also produced in the stomach. Chyme gradually goes into the small intestine.

Question 3

LIVER

Answer 3

Bile produced in the gall bladder, and helps break down fat.

Question 4

PANCREAS

Answer 4

Produced enzymes (Eg INSULIN) which help break down nutrients in the small intestine. (Pancreatic juices are the enzymes)

Question 5

SMALL INTESTINE

Answer 5

Proteins & peptide chains changed into amino acids.
Sugars - simple sugars, eg: Glucose.
Fats - Fatty acids and glycerol.
Bile, pancreatic and intestinal juices are added to the food.
Digested food absorbed into blood.

Question 6

Mouth

Answer 6

Physical: Teeth cut and grind food into particles.
Chemical: Salivary amylase breaks starch chains down to smaller chains of maltose.