Term
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Definition
| A stable internal environment inside of a cell. |
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Term
| What cells have a cell membrane? |
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Definition
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Term
| What does it mean if the cell head is polar? |
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Definition
| It means it is soluble to water. |
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Term
| What does it mean if tails are nonpolar? |
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Definition
| It means they are not soluble to water, |
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Term
| What molecules can easily pass through the phospholipid bilayer? |
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Definition
| Gases like oxygen and carbon dioxide. |
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Term
| How do molecules move in a cell? |
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Definition
| From a low to a high concentration. |
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Term
| How do molecules move in diffusion? |
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Definition
| From a high to a low concentration. |
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Term
| What two molecules can easily pass through the phospholipid bilayer? |
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Definition
| Carbon dioxide and oxygen. |
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Term
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Definition
| Passive transport with no energy needed. |
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Term
| What do transport proteins do in a cell? |
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Definition
| They move proteins around in the membrane. |
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Term
| What are transport proteins and what do they do? |
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Definition
| They move proteins around the cell membrane. |
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Term
| What do transport proteins move? |
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Definition
| Things such as glucose and salt. |
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Term
| Facilitated diffusion requires the help of what? |
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Definition
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Term
| Why is facilitated diffusion a type of passive transport? |
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Definition
| It does not require energy. |
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Term
| What type of diffusion does not need a transport protein? |
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Definition
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Term
| What type of diffusion requires a protein? |
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Definition
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