Test prepe for water molescules, macromolecules, pH, and enzymes.
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| 522472043 | Water Properties | High heat capacity; polar; molecules of water cling together; a great solvent; liquid at room temp; frozen water is less dense then liquid water. | |
| 522472044 | Polar Molecule | A molecule in which one side of the molecule is slightly negative and the opposite side is slightly positive. | |
| 522472045 | Cohesion | Attraction between molecules of the same substance. | |
| 522472046 | Adhesion | Attraction between molecules of different substance. | |
| 522472047 | Capillary Action | A process powered by adhesion that causes water molecules to move upward through a narrow tube such as the stem of a plant. | |
| 522472048 | Surface Tension | The tightness across the surface of water that is caused by the polar molecules pulling on one another. | |
| 522472049 | Hydrogen Bonds | Bond created by the weak attraction of a slightly positive hydrogen atom to a slightly negative portion of another molecule. (holds strands of DNA double helix together) | |
| 522472050 | Enzyme Specificity | The ability of an enzyme to catalyze the reaction of only a single type of molecule or group of closely related molecules. | |
| 522472051 | Catalyst | A substance that speeds up the rate of a chemical reaction. | |
| 522472052 | Active Site | The specific portion of an enzyme that attaches to the substrate by means of weak chemical bonds. | |
| 522472053 | Substrate | The substance acted upon by an enzyme. | |
| 522472054 | Optimum | Most favorable condition or greatest degree or amount possible under given circumstances. | |
| 522472055 | Proteins | Made of C,H, O and N (nitrogen), basic building block are amino acids (20). Purpose = enzymes control rates of reactions, builds bones & muscles, tissue, hair, nails, transports substances, fights disease, provides energy Example: Actin/myosin- help muscles contract | |
| 522472056 | Carbohydrates | Made of C, H, O (carbon, hydrogen, oxygen), basic building block or monomer is glucose. Purpose = main source of energy. Examples: polysaccharides: many chains of sugar starch-hundreds of polysaccharides joined glycogen-starch like substance produced in animals and stored in the liver cellulose-found only in plants, give plants support | |
| 522472057 | Denature | A change in the shape of a protein (such as an enzyme) that can be caused by changes in temperature or pH (among other things). | |
| 522472058 | Synthesis | The process of producing a chemical compound (usually by the union of simpler chemical compounds). | |
| 522472059 | Lipids | Made of C, H and 0 (mostly C and H), building block are triglycerides (glycerol and 3 fatty acids). Purpose = provides energy, helps in metabolic processes, provides insulation, makes up cell membranes. Examples: waxes, oils, steroids... | |
| 522472060 | Nucleic Acids | Made of C, H, O, N, P & S (phosphorous/sulfur), basic building block are nucleotides (sugar,phosphate and nitrogen base). Purpose = stores genetic information, blueprint for making proteins. Examples: DNA and RNA | |
| 522472061 | Amino Acids | Building blocks of protein. | |
| 522472062 | Glucose | A monosaccharide sugar that has several forms. | |
| 522472063 | Glycerol | Organic compound, combines with fatty acids to make lipids. | |
| 522472064 | Fatty Acids | Simple forms of fat that supply energy fuel for most of the body's cells. | |
| 522472065 | Nucleotides | Basic units of DNA molecule, composed of a sugar, a phosphate, and one of 4 DNA bases. | |
| 522472066 | pH | A value that indicated the acidity or alkalinity of a solution on a scale of 0-14, based on the proportion of H+ ions. | |
| 522472067 | Acid | Having a pH lower than 7. | |
| 522472068 | Neutral | Having a ph of 7. | |
| 522472069 | Base (alkaline) | Having a pH greater than 7. | |
| 522472070 | Organic Compounds | Compounds that contain carbon. | |
| 522472071 | Inorganic Compounds | Compounds that do not contain carbon. | |
| 522472072 | Monomer | A simple compound whose molecules can join together to form polymers. | |
| 522472073 | Polymer | A long molecule consisting of many similar or identical monomers linked together. | |
| 522472074 | Macromolecules | Large molecules that are formed by joining smaller organic molecules together. (carbohydrates, lipids, proteins, nucleic acids) |
