ARC science vocabulary test # 21-39
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| element | any substance that cannot be broken down into simpler substances
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| atom | the smallest unit of an element
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| compound | two or more elements that are chemically combined
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| Molecule | the smallest unit of most compunds
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| organic compound | a compound that contains carbon
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| carbohydrates | energy- rich organic compounds such as sugars and starches, that are made of the elements, carbon, hydrogen, and oxygen.
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| protien | large organic molecules made of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfer
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| amino acid | small molecules that are linked together chemically to form protiens
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| enzyme | a type of protien that speeds up a chemical reaction in a living thing
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| lipid | Energy- rich organic compounds, such as fats, oils, and waxes, that are made of carbon, hydrogen, and oxygen
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| nucleic acid | a very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains instructions that cell need to carry out all the functions of life
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| RNA | ribonucliec acid that plays an important role in the production of protiens
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| selectivily permeable | a property of cell membranes that allows some substances to pass through, while others cannot
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| osmosis | the diffusion of water molecules through a cell membrane without using energy
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| passive transport | the movement of matirels through a cell membrane without using energy
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| active transport | the movement of matierals through a cell membrane using energy
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| inorganic compound | a compound that does not contain carbon
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| DNA | Deoxyriboucliec acid; the genetic material that carries information about an organism and is passed down fromm arent to offspring
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| diffusion | the process by which molecules move from an area of higher concentration to an area of lower concentration
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
gpc1313