digestion in order

Question 1

mouth

Answer 1

Ingests food
Chews and mixes food
Begins chemical breakdown of carbohydrates
Moves food into the pharynx
Begins breakdown of lipids via lingual lipase

Question 2

pharynx

Answer 2

Propels food from the oral cavity to the oesophagus

Question 3

oesophagus

Answer 3

Propels food to the stomach

Question 4

stomach

Answer 4

Mixes and churns food with gastric juices to form chyme
Begins chemical breakdown of proteins
Releases food into the duodenum as chyme
Absorbs some fat-soluble substances (for example, alcohol, aspirin)
Possesses antimicrobial functions

Question 5

small intestine

Answer 5

Mixes chyme with digestive juices
Propels food at a rate slow enough for digestion and absorption
Absorbs breakdown products of carbohydrates, proteins, lipids, and nucleic acids, along with vitamins, minerals, and water
Performs physical digestion via segmentation

Question 6

small intestine

Answer 6

Mixes chyme with digestive juices
Propels food at a rate slow enough for digestion and absorption
Absorbs breakdown products of carbohydrates, proteins, lipids, and nucleic acids, along with vitamins, minerals, and water
Performs physical digestion via segmentation

Question 7

liver

Answer 7

produces bile salts, which emulsify lipids, aiding their digestion and absorption

Question 8

gallbladder

Answer 8

stores, concentrates, and releases bile

Question 9

pancreas

Answer 9

produces digestive enzymes and bicarbonate

Question 10

Large intestine

Answer 10

Further breaks down food residues
Absorbs most residual water, electrolytes, and vitamins produced by enteric bacteria
Propels faeces toward rectum
Eliminates faeces