Vocabulary: absorption, amino acid, carbohydrate, chemical digestion, chyme, complex
carbohydrate, digestion, digestive system, elimination, enzyme, fat,
... [Show More] fatty acid, fiber, food calorie,
mechanical digestion, monoglyceride, nutrient, peristalsis, protein, starch, sugar, villus
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. Why do we need to eat food? Food provides us with over 40 substances that it cannot
product on its own, therefore we must eat food to get those 40 substances. These
substances provide a source of energy and help with growth and maintenance of our
bodies.
2. How do you think our bodies break food down into useful nutrients? Our digestive system
breaks down the foot we eat into useful nutrients through digestion. The process of
digestion is composed of many different parts. These parts include mouth, in which
our teeth mechanically break down food, the esophagus which transports the food
from our mouth to our stomach, the stomach and small intestine further break down
the food and large intestine, anus and rectum help remove the waste from our bodies.
Gizmo Warm-up
The digestive system is a group of organs that does three things:
First, the digestive system breaks food down into useful
nutrients, a process called digestion.
Next, the nutrients move into the bloodstream, a process
called absorption.
Finally, the leftover waste is removed from the body, a
process called elimination.
With the Digestive System Gizmo™, you can arrange the organs of the digestive system any
way you like. To begin, look at the organs on the Large Organs tab. Place your cursor over
each organ to learn more about it.
1. Which organs allow nutrients to be absorbed? The small intestine during the stages of
jejunum and ileum and the large intestine
2. Which organ stores and compacts waste before it is eliminated? Rectum
3. Which two organs help to break food down mechanically? Mouth & Stomach [Show Less]