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| form the parts of an organism and carry out all its functions |
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| an instrument that makes small objects look larger |
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| a widely accepted explanation of the relationship between cells and living things |
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| a rigid layer that surrounds the cells of plants and some other organisms |
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| controls which substances pass into and out of a cell |
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| the cell's control center |
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| tiny cell structures that carry out specific functions within a cell |
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| small, grain shaped organelles that produce proteins |
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| helps make proteins and other substances |
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| makes food for the cell using energy from sunlight |
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| stores food, water, wastes products or other materials |
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| convert energy in food to energy used by the cell |
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| break down food particles and worn-out cell parts |
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| fills most of the cell; moves organelles within the cell |
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| packages and distributes materials from the ER |
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| a group of similar cells that work together to perform a specific function |
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| made of different types of tissues that function together |
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| a group of organs that work together to perform a major function |
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| any substance that cannot be broken down into simpler substances |
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| form when two or more elements combine chemically |
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| energy-rich organic compounds made of the elements carbon, hydrogen, and oxygen; sugars and starches |
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| compounds that are made mostly of carbon and hydrogen and some oxygen; fats, oils, and waxes |
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| large organic molecules made of carbon, hydrogen, nitrogen, and, in some cases, sulfur; meat, dairy products, fish, nuts, and beans |
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| speed up chemical reactions in living things |
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| very long organic molecules |
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| deoxyribonucleic acid; the genetic material that carries information about an organism and it passed from parent to offspring |
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| the shape of a DNA molecule |
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| some substances can cross the membrane, while others cannot |
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| the movement of dissolved materials across a cell membrane without using the cell's energy |
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| the process by which molecules move from an area of higher |
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| the diffusion of water molecules across a selectively permeable membrane |
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Definition
| the movement of materials across a cell membrane using cell energy |
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| the cell membrane changes shape and engulfs a particle |
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| allows a large particle to leave a cell |
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