Year 9 Biology: Digestive System and Enzymes

Flashcards covering the primary organs of the human digestive system and the specific enzymes involved in nutrient breakdown.

Salivary glands

A component of the digestive system labeled in the diagram that produces saliva to aid in digestion.

oesophagus

The muscular tube that transports food from the mouth to the stomach.

liver

An organ in the digestive system, labeled as "live/c-" in the revision diagram.

stomach

A part of the digestive system where food is partially broken down.

small intestre

A section of the digestive system misspelled as "small intestre" in the source document.

large intestine

The final section of the digestive system where water is absorbed and waste is prepared for excretion.

anus

The final opening of the digestive tract at the end of the large intestine.

Enzyme

A biological catalyst that facilitates the breakdown of food molecules.

Amylase

A digestive enzyme that catalyzes the breakdown of carbohydrates or starch into simple sugars.

Protease

A digestive enzyme responsible for the breakdown of proteins into amino acids.

Lipase

A digestive enzyme that breaks down lipids into fatty acids and glycerol.