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Definition
| the diffusion of water molecules across a selectively permeable membrane- |
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Definition
| the process by which molecules from an area of lower concentration- |
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Definition
| a property of cell membranes that allows some substances to pass across it, while others cannot- |
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Definition
| the shape of a DNA molecule- |
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Definition
| the process by which the cell membrane takes particles into the cell by changing shape and engulfing the particles- |
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Definition
| the movement of dissolved materials across a cell membrane without using cellular energy- |
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Definition
| the process by which the vacuole surrounding particles fuses with the cell membrane, forcing the contents out of the cell- |
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Definition
| the movement of materials across a cell membrane using cellular energy- |
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Definition
| a group of organs that work together to perform a major function- |
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Definition
| a body structure that is composed of different kinds of tissues that work together- |
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Definition
| rod-shaped organelles that convert energy and food molecules to energy the cells can carry out the function- |
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Definition
| a small grain shaped organelle in the cytoplasm of a cell, that produces proteins.- |
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Definition
| a group of similar cells that perform a specific function- |
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Definition
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| a rigid layer that surrounds the cells of plants and some other organisms- |
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Definition
| controls which substance pass into and out of a cell- |
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Definition
| cell's control center, directing all of the cell's activities- |
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Definition
| consisting of many cells- |
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Definition
| an instrument that makes small object look larger- |
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Definition
| sac-like organelle that stores water, food, and other materials- |
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Definition
| epic fluid region of where a cell's located in side to side membrane, in between the cell membrane and the nucleus- |
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Definition
| a widely accepted explanation of the relationship between cells and living things- |
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Definition
| an organelle in the size of plants and some other organisms that catches energy from sunlight that changes it to an energy form that cells can use to make food- |
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Definition
| an organelle in the cell that receives protein and newly formed materials from the endoplasmic reticulum, packages them, and distributes them to other parts of the cell- |
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Definition
| a cell organelle which contains chemicals that break down large food particles into smaller ones that can be used by the rest of the cell- |
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Term
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Definition
| they carry out specific functions within the cell- |
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Definition
| an organelle that forms a maze of passageways in which proteins and other materials are carried form one part of the cell to another.- |
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Term
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Definition
| the basic unit of structure and function in living things- |
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Term
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Definition
| a very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains the instructions cells need to carry out all functions of life- |
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Term
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Definition
| an energy rich organic compound, such as a sugar or starch, that is made of the elements carbon, hydrogen, and oxygen- |
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Term
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Definition
| a substance of two or more elements chemically combined in a specific ratio, or proportion- |
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Definition
| the genetic material that carries information about an organism and is passed from parent to offspring- |
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