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All matter is made of what? |
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What part of an atom has a positive charge? |
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What part of an atom has a negative charge? |
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What part of an atom has no charge? |
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What is a molecule made up of? |
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What holds atoms together in a molecule? |
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The energy of chemical bonds. |
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The size of a molecule determines whether it will pass through a ______ _________membrane. |
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What type of compounds are in you and all living things? |
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Organic compounds always contain what? |
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What are a few elements that are found in organic compounds? |
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Carbon, hydrogen, and oxygen. |
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What are four types of organic compounds? |
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Carbohydrates, lipids, proteins, and nucleic acids. |
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What are a few examples of carbohydrates? |
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Sugars, starches, and cellulose. |
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Lipids contain how many times more energy than carbohydrates? |
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Proteins are used for what? |
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What are the building blocks of proteins called? |
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Nucleic acids store what in a cell? |
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What are a few examples of nucleic acids? |
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What is the passive transport of water through a cell membrane called? |
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What is an example of osmosis? |
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A window screen is selectively permeable, which means what? |
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That it only lets some things through and keeps others out. |
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Cells are __________ permeable. |
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Water is the compound that allows what to happen? |
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It allows materials to move through a cell membrane through osmosis. |
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In the egg experiment, vinegar was the ______ and the egg was the ________. The vinegar caused the egg shell to dissolve. |
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What caused the egg to shrink and why? |
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Corn syrup caused the egg to shrink because it had a lower concentration than the water outside. |
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What caused the shriveled egg to expand? |
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What are two bases that people sometime take to neutralize stomach acid? |
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Since diffusion does not require energy, it is a type of what? |
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Active transport requires what? |
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What is a type of transport that does not require energy? |
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When you smell bacon that is cooking in another room, you are experiencing what? |
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Diffusion occurs when a substance travels from an area of ______ concentration to an area of _____ concentration. |
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What condition occurs when concentration of water is the same inside and out of a cell? |
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What doesn't stop when equilibrium is reached? |
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The total of all chemical reactions in an organism is called what? |
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Do producers make their own food? |
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The process by which producers make their own food. It involves combining carbon dioxide and water through the Sun's energy and make sugar. |
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Photosynthesis produces what? |
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Plants use what to produce their food? |
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Chlorophyll found in chloroplasts. |
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Plants and animals both undergo what? |
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What happens during respiration? |
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Chemical reactions occur that break down food molecules into simpler substances and release their energy. |
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What is the reason why your muscles get sore? |
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Fermentation is the process that releases what? |
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During fermentation, what wastes are produced? |
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Lactic acid, alcohol, and carbon dioxide. |
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Yeast cells get their energy during what? |
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The wastes of yeast (carbon dioxide) causes what to happen? |
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Yeast are also used in making what? |
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