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C&H Chp. 1 Review
| Question | Answer |
|---|---|
| What are the basic units of structure and function in living things? | cells |
| What tool is used to make small objects appear larger? | microscope |
| What shows the relationship between cells and living things? | cell theory |
| These are tiny organs within cells that carry out specific functions. | organelles |
| This is the organelle that provides protection and support for plant cells. | cell wall |
| This is the organelle that controls what comes in and out of cells. | cell membrane |
| This organelle is the control center of the cell. | nucleus |
| What is the jelly-like substance the organelles float in called? | cytoplasm |
| Which organelle converts energy in food into energy the cell can use? | mitochondria |
| What is the name for the passageways throughout the cell? | endoplasmic reticulum |
| Which organelle assembles amino acids into proteins? | ribosomes |
| This is the organelle that packages and distributes proteins. | golgi bodies |
| This plant cell organelle uses sunlight energy to make food. | chloroplast |
| These store food, water, or waste in cells. | vacuoles |
| These organelles contain enzymes that break down large food molecules, old cell parts, or waste. | lysosomes |
| A substance that cannot be broken down into simpler substances. | element |
| This is formed when two or more elements chemically combine. | compound |
| This is the organic compound that provides energy. Examples are sugars and starches. | carbohydrates |
| Meat, eggs, beans, and nuts are good examples of this cell-building organic compound. | protein |
| Proteins are made of long chains of these. | amino acids |
| A type of protein that speeds up chemical reactions. | enzyme |
| Fats, oils, and waxes are examples of this organic compound that stores energy. | lipids |
| DNA and RNA are two examples of this organic compound. | nucleic acid |
| This nucleic acid stores information that is passed down to offspring. | DNA |
| This nucleic acid helps make proteins. | RNA |
| The cell membrane can be described as ___ ___ because it only lets certain materials pass through. | selectively permeable |
| The movement of substances from high concentration to low concentration is called ___. | diffusion |
| By what process do water molecules move from high to low concentration? | osmosis |
| Moving materials without using the cell's energy is called this. | passive transport |
| Transport proteins and engulfing are two types of ___ ___, which requires the cell's energy. | active transport |