| A | B |
|---|
| Virus | a piece of hereditary material covered by protein that infects and reproduces only inside a living cell |
| Host cell | The living cell in which a virus reproduces |
| Vaccine | an inoculation administered made of weakened virus particles in an effort to prevent certain diseases |
| Edward Jenner | The scientist credited with developing the smallpox vaccine |
| Rabies, measles, polio. smallpox, influenza, and chicken pox | vaccines have been developed to prevent these diseases |
| AIDS | A disease that is caused by the HIV virus which results in breaking down the immune system |
| compound light microscope | allows light to pass through an object and then through two or more lenses |
| electron microscope | uses a magnetic field to bend beams of electrons |
| The cell theory | A conclusion made by many scientists stating that all organisms are made up of one or more cells 2. Cells are the basic units of structure and function in all organisms and 3. all cells come from cells that already exist |
| Robert Hooke | discovered that cork was made of tiny boxes called "cells" |
| Matthias Schleiden | discovered plants were made of cells |
| 1665 | Robert Hooke observed cork was made of tiny boxes known as cells |
| 1838 | Schleiden , a German scientist concluded that all plants were made of cells |
| 1839 | Theodor Schwann concluded that all animals were made of cells |
| Rudolph Virchow | A scientist who concluded that cells do not form on their own but originate from other cells |
| Zacharias Janssen | A Dutch maker of reading glasses who created the first compound light microscope by placing two magnifying glasses together in a tube |
| Anton Van Leeuwenhoek | A scientist who made a simple microscope with one lens that had a total magnification of 270X |
| convex lens | A convex lens is thicker in the middle that at the edges. This causes the light rays to bend inward and meet at a point. Microscopes are made of one or more convex lenses. Placing the object to be viewed a certain distance from the convex lens produces an enlarged image |
| 10X | The usual magnification of the eyepiece of a microscope |
| stereoscopic light microscope | A microscope that provides a three-dimensional view of an object. |
