Matter Short Answer
| # | Answer |
|---|---|
| 1 | Matter is anything that has mass and takes up space. |
| 2 | The three common states of matter are solid, liquid, and gas. |
| 3 | An atom is the smallest unit of an element that still has the properties of that element. |
| 4 | An element is made of only one kind of atom, while a compound is made of two or more different elements chemically bonded together. |
| 5 | Water is important because it helps transport substances, regulate temperature, and support chemical reactions in cells. |
| 6 | Carbon is important because it can form four bonds, making it the backbone of many biological molecules. |
| 7 | Biomolecules are large organic molecules found in living things, such as carbohydrates, lipids, proteins, and nucleic acids. |
| 8 | Carbohydrates provide a quick source of energy for cells. |
| 9 | Lipids store long-term energy and are important parts of cell membranes. |
| 10 | A protein is made of amino acids joined together in a chain. |
| 11 | Atoms are held together by chemical bonds. |
| 12 | A physical change changes the form or state of matter without making a new substance, while a chemical change produces one or more new substances. |
| 13 | It shows that matter is not created or destroyed in normal biological processes, only rearranged. |
| 14 | The particles gain energy, move more freely, and change from a fixed arrangement to a less ordered one. |
| 15 | Evaporation happens at the surface of a liquid and can occur at many temperatures, while boiling happens throughout the liquid at a specific temperature. |
| 16 | Diffusion is the movement of particles from an area of high concentration to low concentration. It is important because it helps substances move into and out of cells. |
| 17 | Osmosis is the diffusion of water across a selectively permeable membrane. |
| 18 | Cells need it to control what enters and leaves, helping maintain a stable internal environment. |
| 19 | As temperature increases, particles move faster and spread farther apart in most substances. |
| 20 | Lipids are mostly nonpolar, so they do not mix well with polar water molecules. |
| 21 | Proteins fold into specific shapes based on their amino acid sequence, and the shape determines the protein’s function. |
| 22 | Water is polar, so it can dissolve many substances and help with transport and reactions in organisms. |
| 23 | Matter provides the physical substances used in cells, while energy is needed to move and rearrange that matter during life processes. |
| 24 | Enzymes are proteins made of matter that act as catalysts to speed up chemical reactions in cells. |
| 25 | Understanding matter helps explain how cells are built, how substances move, and how life processes occur in organisms. |