Term
|
Definition
| a living thing that is composed of at least one cell. |
|
|
Term
| what must an organism have to be considered living? |
|
Definition
| Most biologists agree that to be living, an organism must meet five characteristics |
|
|
Term
|
Definition
| organisms are composed of cells (a unit surrounded by a membrance that controls the movement of materials) |
|
|
Term
|
Definition
| Explanation for a general class of phonema or observations and usually examine fundamental questions |
|
|
Term
| What do theories provide? |
|
Definition
| a framework for understanding many different, broad observations |
|
|
Term
| What must a theory be based upon? |
|
Definition
|
|
Term
| what does a single theory generate? |
|
Definition
| many specific hypothesis that are testable. |
|
|
Term
|
Definition
| What are organisms composed of? Where do organisms come from? |
|
|
Term
| What are all organisms made of? |
|
Definition
|
|
Term
|
Definition
| 1665, studied oak bark, using a crude microscope, 30X magnification, cells |
|
|
Term
| What did Robert Hooke discover? |
|
Definition
| pore-like structures called cells. |
|
|
Term
| Robert Hooke magnification size |
|
Definition
|
|
Term
|
Definition
| Studied samples of pond water, human blood and sperm. 300x, observed bacteria |
|
|
Term
|
Definition
|
|
Term
| Theodor Schwann, Matthais Schleiden |
|
Definition
| "All living things are composed of cells and cell products. " 1839 |
|
|
Term
| Robert Remak and Rudolph Virchow |
|
Definition
| "All cells come from preexisting cells." 1858 |
|
|
Term
|
Definition
| all organisms are made of cells, and all cells come from preexisting cells. |
|
|
Term
| Two componenets of every theory |
|
Definition
|
|
Term
|
Definition
| in nature that this theory describes "all organisms are made of cells" |
|
|
Term
|
Definition
| (mechanism) that creates this pattern: "all cells ceom from preexisting cells". |
|
|
Term
| How long from Hooke to Virchow? |
|
Definition
|
|
Term
|
Definition
proposed using observations from different tissues and cells from diverse organisms were examined
scientists made generatlations |
|
|
Term
| To begin a research project |
|
Definition
| a scientist first needs a proposed question |
|
|
Term
|
Definition
| Where do organisms come from? |
|
|
Term
|
Definition
| Based on observations that have been previously made, a scientist them develops a hypothesis that is specific and leads to testable predictions |
|
|
Term
|
Definition
| proposed explanation to the question |
|
|
Term
| Two theories that opposed the cell theory |
|
Definition
| Spontaneous generation, All-Cells-From-Cells |
|
|
Term
| Spontaneous Generation hypothesis |
|
Definition
| organisms spontaneously come to life under specific conditions, and from nonliving materials |
|
|
Term
| All cells from cells hypothesis |
|
Definition
| Cells are only formed from the growth and division of preexisting cells, they are not spontaneously formed creating new organisms |
|
|
Term
|
Definition
| tested these hypothesis to determine whether cells appear spontaneously or come from preexisting cells |
|
|
Term
|
Definition
| two different treatment groups, using a nutrient broth and different shaped flasks |
|
|
Term
| Things Pasteur kept the same |
|
Definition
same nutrient broth
same amount of broth
boiled for the same length of time
both used glass flasks |
|
|
