BJU BIO CH 2 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
| Key Term | Definition |
| chemistry | the study of the composition and properties of matter and the energy transformations that accompany changes in the fundamental structure of matter |
| matter | anything that occupies space and has mass; three states: solid, liquid, and gas |
| energy | the ability to do work |
| kinetic energy | energy in motion |
| potential energy | stored energy |
| entropy | the increase in randomness and loss of usable energy |
| solution | a homogeneous mixture of one or more substances in another substance; example: sugar and water |
| solvent | the dissolved substance in a solution |
| suspension | the state of a substance when its particles are mixed but are undissolved and will settle out over time; example: flour and water |
| colloid | a mixture of fine particles that do not settle out; often ni one of two stages, the gel phase (the semisolid state) or the sol phase (the fluid state); example: gelatin and water |
| diffusion | the net movement of molecules fron an area of higher concentration of a substance to an area of lower concentration of that substance; example: perfume in the air and dye in water |
| osmosis | the diffusion of water through a semipermeable membrane (selectively permeable membrane) |
| biosynthesis | the putting together of substances by living things |
| carbohydrates | organic compounds that contain carbon, hydrogen, and oxygen |
| monosaccharides | "single sugar" |
| disaccharides | "double sugar"; examples: maltose, sucrose, and lactose |
| hydrolysis | the breaking down of a disaccharide by adding a water molecule |
| dehydration synthesis | a process in which one sugar loses a hydroxyl group (OH) and another sugar gives up a hydrogen atom, resulting in a water molecule and a disaccharide |
| polysaccharides | "many sugars"; also called comples carbohydrates |
| starch | stored by plants; major source of energy for humans |
| glycogen | "animal starch" |
| cellulose | composed of long chains of glucose molecules; bulk/roughage |
| chitin | strong yet flexible polysaccharide; shells of crabs, lobsters, shrimp; outer covering for insects; found in cell walls of fungi |
| lipids | group of organic substances; only slightly soluble in water but very soluble in organic substances such as alcohol, ether, acetone, and chloroform |
| fatty acids | building blocks for other lipids |
| phospholipids | important in the formation of cell membranes |
| sterols | combine with other substances to form hormones and other compounds, such as cholesterol |
| proteins | long chains of amino acids |
| DNA | deoxyribonucleic acidp; primary nucleic acid in most organisms |
| replication | the process of producing two new identical DNA molecules from one old one |
| RNA | base nucleic acid in a few organisms; carries message from the DNA in the nucleus to the ribosomes, where proteins are made |
| transcription | a process where RNA is formed from DNA |
Created by:
marchbio
Popular Biology sets