1. Micro Life Vocabulary

2. 1. infectious – disease caused by germs, such as bacteria.

3. Vocabulary 2. noninfectious – disease caused by genes, the environment, lifestyle or a combination of these factors.

4. Vocabulary 3. contagious – a disease that will spread by contact.

5. Vocabulary 4. carrier – a person who is contagious but never develops symptoms of the disease or develops the disease only after a lengthy period of time.

6. Vocabulary 5. epidemiologist – scientists who trace the spread of disease through a population.

7. Vocabulary 6.quarantine – an enforced isolation to prevent a disease from spreading.

8. Vocabulary 7. vector – an organism that spreads disease causing germs to humans usually without getting sick itself.

9. Vocabulary 8. field of view – area you see when looking through the eyepiece of a microscope.

10. Vocabulary 9. magnify/magnification – to make larger.

11. Vocabulary 10. microbe – organisms too small to be seen with the human eye.

12. 11. disease- a breakdown in the structure and function of a living organism.

13. Vocabulary 12. cell – basic unit of structure and function in living things.

14. Vocabulary 13. cell theory – the theory that all living things are made of cells, all cells come from other cells and cells contain hereditary information.

15. Vocabulary 14. germ theory of disease – this theory proposes that an infectious disease is caused by microbes, which can be spread by people.

16. Vocabulary 15. multi-cellular – having more than one cell. 16. cell membrane – thin, flexible envelope that surrounds the cell.

17. Vocabulary 17. cytoplasm – jelly like material between the cell membrane and the nucleus.

18. Vocabulary 18. nuclear membrane – separates the nucleus from the rest of the cell. 19. nucleus – cell structure that directs all the activities of the cell.

19. Vocabulary 20. organelles – “tiny organs” that make up the cell.

20. Vocabulary 21. respiration – when an organism breaks down sugar and releases carbon dioxide in its cells or the breakdown of nutrients to produce energy and carbon dioxide in the cells.

21. Vocabulary 22. bacteria – a single cell microbe without nucleus.

22. Vocabulary 23. protist – usually a single celled microbe with a nucleus.

23. Vocabulary 24. virus – is not classified as an organism because they are not free living cells. Made up of two parts – the capsid and nucleic acid.