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Definition
| Produce most of the energy needed by a cell |
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| The movement of water molecules through a selectively permeable membrane |
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| Cells in many celled organisms are |
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Definition
| Often quite different from each other |
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| The control center of the cell |
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| Protects and supports the cell |
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Definition
| Occurs when energy is required to move materials through a cell membrane |
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Definition
| Occurs when molecules move from an area of higher concentration to an area of lower concentration |
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| Part of the cell theory states that |
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Definition
| All cells are produced from other cells |
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| First scientist to observe what are now called bacteria |
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| What is the total magnification of a microscope with two lenses. One lens has a magnification of 15, and the other lens has a magnification of 30? |
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Definition
| The organelle that is the control center of the cell |
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| Function of the cell membrane |
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Definition
| To control what enters and leaves the cell |
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| Bacterial cells are different from plant and animal cells because |
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Definition
| They do not have a nucleus |
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Definition
| An organelle that is used as a "storage locker" for the cell |
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| The diffusion of WATER molecules through a selectively permeable membrane is called osmosis |
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Definition
| allows materials to pass into and out of a cell |
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| Active transport requires a cell to use |
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Definition
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Definition
| Thin strands in the nucleus of a cell that contain genetic material |
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| Small grain-like bodies that produce proteins inside cells |
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| The cell theory states that |
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Definition
| All organisms are made up of CELLS |
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| The genetic material in a bacterial cell is not found in the |
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| Plant and bacterial cells both have a |
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| The DIFFUSION of water molecules through a selectively permeable membrane is called osmosis. |
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| Be able to identify the following parts of a cell and tell their function |
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Definition
ER-Endoplasmic Reticulum=transports, Mitochondria=provides energy,
Nucleus=tells a cell what to do,
Cell Membrane=Controls what enters and leaves the cell |
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| Be able to tell what will happen to red blood cells if they were placed in water with very little salt, very salty water, and plasma |
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Definition
| Red blood cells in water with very little salt will puff up. Red blood cells in very salty water will shrink. Red blood cells in plasma will stay the same. |
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| An egg is 90% water and corn syrup is 25% water. Know what will happen if you put an egg in corn syrup. Be able to name the process and explain what happens. |
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Definition
| If you put an egg in corn syrup osmosis will occur. The water will leave the area of high concentration (egg) and move to the area of low concentration (corn syrup). The egg will become flabby. |
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