Test - Digestive System Flashcards
- Which process takes place in the large intestine?
Water is absorbed from undigested food pg. 71
- What organ stores bile?
Gall bladder pg. 71
- Where does digestion begin?
Mouth pg. 75
- What are the sharp teeth used for tearing food?
Canines pg. 72
- Which of the following organs is considered to be a part of the alimentary canal?
None of these pg. 71
- Which nutrients are made up of amino acids?
Proteins pg. 74
- What substance must be present for pepsin to work the best?
Hydrochloric acid pg. 72
- Where does the alimentary canal end?
Large Intestine pg. 75
- What structures enable the small intestine to absorb large amounts of nutrients?
Villi pg. 75
- Where does digestion of carbs begin?
Mouth pg. 72
- About half the different __________ that make up proteins are made inside the body.
Amino acids pg. 71
- Digestion begins in the stomach.
False; mouth pg. 72
- Most chemical digestion takes place in the small intestine.
True pg. 75
- Bacteria in the esophagus make vitamin K
True pg. 71
- In general, could organ C perform its function without organ B? Explain.
The small intestine would not be able to absorb the small nutrient molecules in the bloodstream pg.72
- Identify organ A and give its function.
Produces bile which helps break down fat particles. Pg. 71
- Name the structures that line organ C and describe their function. This means what is on the inside of this whole organ and what do these structures do.
The structures are villi. Nutrient molecules pass into cells on the surface of a villus and from there into blood vessels. The villi provide a large surface area for absorption. Pg. 75
- Explain in detail how your mouth helps digest food.
Mechanical digestion - Teeth (incisors) cut and tear (canines) food into smaller pieces. They (molars) also crush and grind food. Chemical digestion - saliva moistens food, making it easier to swallow. Saliva contains an enzyme salivary amylase that chemically breaks down starch into smaller sugar particles called maltose. The
tongue positions the food swallowing. Pg. 72
