Term
| What do ribosomes do in the cell? |
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Definition
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Term
| What do eukaryotic cells have that prokaryotic cells don't have? |
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Definition
| Membrane-bound organelles |
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Term
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Definition
| A stable internal environment |
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Term
| What type of cells have a cell membrane? |
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Definition
| It means that they have and unequal sharing of electrons. |
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Term
| What does it mean that the tails are ""nonpolar"? |
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Definition
| It means that they have equal sharing of electrons among atoms. |
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Term
| What kinds of molecules can pass easily though the phospholipid bilayer? |
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Definition
| Small nonpolar molecules like oxygen gas |
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Term
| How do molecules in a cell move? |
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Definition
| high concentration to low |
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Term
| In simple diffusion, molecules move from: |
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Definition
| High concentration to Low concentration |
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Term
| What two molecules can easily pass through the phospholipid bilayer (cell membrane)? |
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Definition
| carbon dioxide and oxygen |
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Term
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Definition
| Passive transport that does not require energy |
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Term
| What do you think "transport proteins" are and do in the cell membrane? |
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Definition
| I think that they transport molecules and proteins through the cell. |
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Term
| What is the job of a transport protein? |
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Definition
| The job is to help transport proteins that are to big. |
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Term
| What kind of things do transport proteins help move? |
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Definition
| They help move polar proteins in the cell. |
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Term
| In facilitated diffusion, large molecules cannot pass across the cell membrane without the help of |
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Definition
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Term
| Why is facilitated diffusion a type of passive transport? |
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Definition
| They are still allowing things to transport freely without exerting energy. |
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Term
| doesn't require a transport protein to cross the cell membrane |
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Definition
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Term
| requires a protein to move across the cell membrane |
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Definition
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Term
| What happens when the bond holding one of the phosphates in ATP is broken? |
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Definition
| It releases a great amount of energy. |
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Term
| What is the purpose of active transport? |
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Definition
| to force things to move against the concentration gradient |
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Term
| What is the molecule called that provides the energy needed for molecules to move from a low to a high concentration? What is this process called? |
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Definition
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Term
| What is endocytosis referring to when we are talking about things moving across the cell membrane? |
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Definition
| They are talking about when molecules mover across and form vesicles. |
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