→ Biology - Organs In The Digestive System → Empezar lección / Descargar tarjetas en MP3

término		definición
What happens in the mouth? empezar lección		Food is chewed and mixed with saliva. Amylase begins starch digestion.
What does amylase do? empezar lección		Amylase breaks down starch into sugars.
What is the peristalsis? empezar lección		Wave-like muscle contractions that move food through the digestive system.
What happens in the stomach? empezar lección		The stomach churns food and uses hydrochloric acid and protease enzymes to digest proteins.
Why is hydrochloric acid important? empezar lección		It kills bacteria and provides the optimum acidic pH for stomach enzymes.
What do protease do? empezar lección		Proteases break proteins into amino acids
What does the liver do? empezar lección		The liver produces bile.
What is bile? empezar lección		An alkaline substance that neutralises stomach acid and emulsifies fats.
What does emulsify mean? empezar lección		Breaking large fat droplets into smaller droplets to increase surface area.
Why is bile important? empezar lección		It creates alkaline conditions for lipase and increases the rate of fat digestion.
What does the lipase do? empezar lección		Lipase breaks lipids into fatty acids and glycerol.
What does the pancreas do? empezar lección		The pancreas produces amylase, protease, and lipase enzymes.

Biology - Organs in the digestive system