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Grade 8 CH 3
Interactions of Human Systems
| Question | Answer |
|---|---|
| A process in which food molecules pass through the walls of the villi and into the bloodstream. | ABSORPTION |
| Tiny thin walled sacs in the lungs. | ALVEOLI |
| The smallest functional unit of an organism. | CELL |
| A series of chemical processes when oxygen combines with food molecules & energy is re-leased. | CELLULAR RESPIRATION |
| The breakdown of food into smaller & simpler pieces. | DIGESTION |
| A protein that helps the body carry out chemical reactions. | ENZYME |
| The removal of waste products. | EXCRETION |
| The body maintains a stable internal environment. | HOMEOSTASIS |
| Inorganic substances that are involved in many of the body’s chemical reactions. | MINERAL |
| The body changes an internal condition back to its normal state. | NEGATIVE FEEDBACK |
| A structure made up of different types of tissues that work together. | ORGAN |
| Group of organs that work together to do a certain job. | ORGAN SYSTEM |
| These contain carbon such as nucleic acid, proteins, carbohydrates, & lipids. | ORGANIC COMPOUND |
| Groups of similar cells that do the same sort of work. | TISSUE |
| The fingerlike tiny projections that line the small intestine. | VILLI |
Created by:
Bridgerdon
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