| A | B |
|---|
| a cell is... | the samllest unit that can carry on the functions of life |
| Transmissin electron microscope... | used to studsy the internal structure of cells, but kills the cell |
| scanning electron microscope... | gived a 3D pictrure of the surface of cells, kills the cell |
| Robert Hooke | observed the first cork cell |
| Anton Van Leewenhoek | first person to observe living cells |
| Matthias Schleiden and Theodore Schwan | came up with the first two parts of the cell theory |
| Rudolph Virchow | added the third part of the cell theory |
| All living things are made up of... | one or more cells |
| Cells are the basic unit of... | structure and function |
| Cells can only come | from other cells |
| surface area to volume hypothesis= | when the volume of the cell becomes too big for the cemm membrane to support, the cell divides |
| the cell membrane is... | selectively permeable |
| ribosomes are responsible for... | protein synthesis |
| chromatin= | thin strands of DNA |
| chromasomes= | tightly coiled strands of DNA |
| golgi apparatus= | processing, packaging, and secreting organelle |
| endoplasmic reticulum is responsible for... | transporting |
| lysosomes= | small sacs that digest incoming molecules, produced by golgi apparatus |
| microtubules+microfiliments | cytoskeleton |
| a tight junction between cells... | forms a seal that prevents leakage of cellular fluid |
| desmosomes= | fasten cells together |
| gap junctions allow for... | passage of inormation and chemicals, constant communication |
| primary cells wall= | thin, flexible wall, found in young plants |
| middle lamella= | glues cells together |
| secondary cell wall= | between cell membrane and middle lamella |
| plasmodesmata= | similar to gap junctions in animals |
| vacuoles= | large water storage ares in plants |
| chloroplasts= | conatin chlorphyll |
