Digestive System Structures and Function

What is the aim of the digestion?

• Obtain matter and energy

• Obtain nutrients from food and break it down into small molecules, which are then absorbed

• Break down food into inorganic nutrients

• Obtain nutrients form food and transport it to the cells

Where does the absorption take place?

• Esophagus

• Stomach

• Small intestine

• Large intestine

• Digestive tract

What is the enzyme contained in the saliva?

• Amylase

• Pepsine

• Hydrochloride acid

• Lipase

Where is the bile stored?

• Liver

• Gall bladder

• Pancreas

• Small intestine

Where is the gastric juice released?

• Stomach

• Small intestine

• Mouth

• Large intestine

What is the function of the villi?

• To increase the absorption surface

• To digest the last nutrients

• To form feces

• To comb the small intestine

What is the function of the large intestine?

• The absorption of water and some vitamins, formation and storage of feces

• The absorption of nutrients

• The digestion of fats

• Transport the nutrients to the blood stream

The teeth and tongue of the oral cavity break foodstuff down physically. This is an example of

• mechanical digestion

• chemical digestion

• absorption

• peristalsis

Which of the following answers correctly sequences the pathway food takes from the beginning to end?

• mouth, esophagus, stomach, small intestine, large intestine

• mouth, esophagus, stomach, large intestine, small intestine

• mouth, stomach, esophagus, small intestine, large intestine

• mouth, stomach, esophagus, large intestine, small intestine

Structure 12 is the

• pancreas

• salivary glands

• mouth

• esophagus