Vocabulary from Module 5 of Apologia's Exploring Creation with Biology (2nd Edition) by Dr. Jay Wile
Terms : Hide Images
| 853353596 | Matter | Anything that has mass and takes up space. |  |
| 853353599 | Model | An explanation or representation of something that cannot be seen. | |
| 853353600 | Element | A collection of atoms that all have the same number of protons. |  |
| 853353601 | Molecules | Chemicals that result from atoms linking together. |  |
| 853353602 | Physical change | A change that affects the appearance but not the chemical makeup of a substance. Generally reversible. (EXAMPLES: Sugar dissolving in water; Ice melting) |  |
| 853353603 | Chemical change | A change that alters the makeup of the elements or molecules of a substance. Generally not reversible. (EXAMPLE: paper burning) |  |
| 853353604 | Phase | One of three forms--solid, liquid, or gas--which every substance is capable of attaining. |  |
| 853353605 | Diffusion | The random motion of molecules from an area of high concentration to an area of low concentration. Takes place through solid, liquid and gases. |  |
| 853353622 | Concentration | A measurement of how much solute exists within a certain volume of solvent. | |
| 853353606 | Semipermeable membrane | A membrane that allows some molecules to pass through but not others. (EXAMPLE: a cell membrane) |  |
| 853353607 | Osmosis | A special type of diffusion where a solvent travels across a semipermeable membrane into areas of higher solute concentration. Takes place only in water. |  |
| 853353608 | Catalyst | A substance that alters the speed of a chemical reation but is not used up in the process. |  |
| 853353609 | Organic molecule | A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfer, and/or phosphorous. |  |
| 853353610 | Biosynthesis | The process by which living organisms produce larger molecules from smaller ones. |  |
| 853353611 | Isomers (ISO=same) | Two different molecules that have the same chemical formula. |  |
| 853353612 | Monosaccharides (MONO=one; SACCHARIDES=sugars) | Simple carbohydrates that contain 3 to 10 atoms. |  |
| 853353613 | Disaccharides (DI=two; SACCHARIDES=sugars) | Carbohydrates that are made up of two monosaccharides. |  |
| 853353614 | Polysaccharides (POLY=many; SACCHARIDES=sugars) | Carbohydrates that are made up of more than two monosaccharides. |  |
| 853353615 | Dehydration reaction | A chemical reaction in which molecules combine by removing water. |  |
| 853353616 | Hydrolysis | Breaking down complex molecules by the chemical addition of water. |  |
| 853353617 | Hydrophobic (HYDRO = water; PHOBIC = fear) | Lacking any affinity to water. |  |
| 853353618 | Saturated fat | A lipid made from fatty acids that have no double bond between carbonatoms. |  |
| 853353619 | Unsaturated fat | A lipid made from fatty acids that have at least one double bond between carbon atoms. |  |
| 853353620 | Peptide bond | A bond that links amino acids together in a protein. |  |
| 853353621 | Hydrogen bond | A strong attraction between hydrogen atoms and certain other atoms (usually oxygen or nitrogen) in specific molecules. Overall, a WEAK BOND. |  |
