Digestive System

2. a unit used to measure the energy in foods
4. an organic molecule containing a carboxyl and an amino group (2 wds)
6. plant material in food that is difficult to digest
8. substance that is used by the body for energy, growth, & other processes
10. wavelike muscle contractions that push food through the digestive system
12. process by which wastes are removed from the body
13. the physical breakdown of foods (2 wds)\
14. simple carbohydrate that may be a monosaccharide or a disaccharide
16. molecule, usually a protein, which catalyzes a chemical reaction
18. common complex carbohydrate used as a source of energy

1. organic molecules containing H, C, and O
2. a long carbohydrate molecule formed by chains of sugars
3. tiny, finger-like projection in the wall of the small intestine
4. taking in of one substance by another
5. organic molecule consisting of three fatty acids attached to a glycerol backbone
6. component of a fat molecule along with glycerol (2 wds)
7. organic molecule consisting of long chains of amino acids folded into a particular shape
9. group of organs the work together to break down and absorb nutrients from food & eliminates wastes (2 wds)
11. digestion that breaks down nutrients through the action of enzymes
15. breakdown of food into simpler components that can be absorbed & used by the body
17. thick liquid of partially digested food produced by the stomach