→ Biology - Organs In The Digestive System → Оқуды бастаңыз / MP3 флэш-карталарын жүктеу

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

Biology - Organs in the digestive system