Term
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Definition
| An adult human body consist of about_____ cells |
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Term
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Definition
| There are at least _____ varieties of cells |
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Term
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Definition
| Cells are measured in units called______ . |
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Term
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Definition
| A micrometer equals ______ in diameter. |
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Term
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Definition
| A human egg cell is about ____ in diameter. |
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Term
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Definition
| A red blood cell is about_____in diameter |
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Term
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Definition
| Typically the shape of a cell makes possible its_____. |
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Term
| Cells vary in size, shape, content, and function |
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Definition
| It jis not possible to describe a typical cell because |
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Term
| many known cell structures |
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Definition
| A composite cell includes_____. |
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Term
| nucleus, cytoplasm, and cell membrane |
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Definition
| The 3 major structures of a cell are___. |
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Term
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Definition
| The nucleus is enclosed by _____. |
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Term
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Definition
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Term
| a mass of fluid that surrounds the nucleus and itself encircled by the cell membrane |
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Definition
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Term
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Definition
| The cell membrane surrounds_____. |
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Term
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Definition
| Specialized structures within the cytoplasm are called |
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Term
| a liquid that suspends organelles |
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Definition
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Term
| the entrance and exit of substance into and out of the cell |
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Definition
| The cell membrane controls___. |
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Term
| it allows the entry and exit of only certain substances |
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Definition
| The cell membrane is called selectively permeable because _____. |
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Term
| the process in which a cell recieves and responds to incoming messages |
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Definition
| Signal tranduction is_____. |
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Term
| lipids and proteins, with some carbohydrates |
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Definition
| the cell membrane is mainly composed of ____. |
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Term
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Definition
| The cell membrane has a double layer of_____. |
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Term
| phosphate group of phospholipids molecules |
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Definition
| The surface of the cell membrane are formed by _____. |
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