12 Questions
What is the role of amylase in the digestive system?
Breaks down carbohydrates
Which enzyme is responsible for breaking down proteins in the stomach?
Pepsin
Where does the absorption of nutrients mainly occur in the digestive system?
Jejunum
What is the function of bile in the digestive system?
Emulsifies fats
Which part of the digestive system is responsible for absorbing water and minerals?
Large intestine
What is the waste product formed in the digestive system for elimination?
Feces
Qual é a principal função da mastigação no processo de digestão?
Aumentar a superfície de contato dos alimentos para facilitar a digestão química
Qual é a principal função da saliva durante a digestão?
Lubrificar o bolo alimentar para facilitar a deglutição
Qual é a função do estômago no processo de digestão?
Transformar o bolo alimentar em quimo através do ácido clorídrico e pepsina
Qual é a principal função do intestino delgado na digestão?
Absorver os nutrientes digeridos
Qual é a função do intestino grosso na digestão?
Absorver água e sais minerais e eliminar os resíduos não absorvidos
Qual é a diferença entre a digestão física e a digestão química no processo de digestão?
A digestão física quebra os alimentos em partículas menores, enquanto a digestão química transforma os nutrientes em moléculas absorvíveis
Study Notes
- The text explains the journey of food in the digestive system, starting from the mouth where digestion begins with the breakdown of carbohydrates.
- Chewing helps increase the surface area of the food for better chemical reactions, and saliva from salivary glands contains enzymes like amylase to start breaking down carbohydrates.
- Swallowing food involves passing it through the pharynx to the esophagus, where peristaltic movements help move the food towards the stomach.
- In the stomach, food is mixed with gastric juices containing hydrochloric acid (HCl) for protein digestion, with pepsin breaking down proteins into smaller molecules.
- The partially digested food (chyme) then moves to the small intestine, where further digestion occurs with the help of pancreatic enzymes and bile produced by the liver to emulsify fats.
- The small intestine is divided into the duodenum, jejunum, and ileum, with the absorption of nutrients mainly happening in the jejunum.
- In the large intestine, water and minerals are absorbed, and the remaining waste forms into feces for elimination through the rectum.
Test your knowledge on how food travels through the digestive system, from the mouth to the large intestine, and the role of different organs and enzymes in digestion.
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