click below
click below
Normal Size Small Size show me how
bio chpt 8: cells
| Term | Definition |
|---|---|
| peripheral proteins | attached to the cell; support, communication, enzymes, and molecule transfer in the cell |
| Integral proteins | embedded into the cell membrane, channeling or transporting molecules across membrane |
| prokaryote | no nucleus |
| eukaryote | has nucleus |
| magnification | the ability to make small obj. seem larger, such as making a microscope organism visible |
| resolution | the ability of a microscope to distinguish detail |
| What did Van Leewenhoek do? | first to view living cells |
| What did Hooke do? | first to view and draw cork cells from plants |
| What did Shleiden do? | all plants are made of cells |
| What did Shwann do? | all animals are made of cells |
| What did Virchow do? | new cells can only come from existing cells |
| 3 parts of the cell theory? | all living things are made of cells, cells are the basic units of structure and function in living things, and new cells are made from existing cells |
| what are the 4 parts found in all cells? | cell membrane, DNA, ribosomes, cytoplasm |
| All prokaryotic cells are? | bacteria |
| all eukaryotic cells are these two? | plants and animal |
| another name for prokaryotic | bacteria |
| A __________ microscope has 2 or more lenses | compound |
| always multiple the magnification of the eyepiece and the lense to get the total magnification (no answer) | no answer |
| The best light microscope can only magnify up to ____x | 1000 |
| Electron microscopes can magnify up to ______x but are at a disadvantage because they can only view ______________cells | 1 million, non-living |
| What is the cell/plasma membrane made of (2 molecules) | phospholipids, proteins |
| Proteins in the cell membrane have the following functions (4) | move material, help move or change shape, identification, attached to cytoskeleton |
| What does selectively permeable mean? | controls what comes in and out of the cell |
| Which organelles are not shared by animals and plant cells? (3) | chloroplasts, cell wall, centrioles |
| be able to label basic animal and plant cell (no answer) | no answer |