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Biology
Words and Definitions.
| Question | Answer |
|---|---|
| Atom | the basic unit of measure |
| Element | pure substance that consists of one type of atom |
| Molecule | smallest unit of a compound |
| Covalent Bond | type of bond between atoms in which the electrons are shared |
| polar molecule | One end of the molecule is slightly negative and slightly positive ( works well w/water) |
| non-polar molecule | An equal sharing of charge. ( doesn't work well w/water) |
| Hydrogen Bond | weak attraction between a hydrogen atom and another atom |
| Cohesion | An attraction between molecules of the same substance |
| Adhesion | Force of attraction between different kinds of molecules |
| Capillary Action | tendency of water to rise in a thin tube due to adhesion and cohesion |
| reactants | Elements or compounds that enter into a chemical reaction |
| products | Elements or compounds produced by a chemical |
| independent variable | factor in a controlled experiment that is deliberately changed; also called manipulated variable ( eg: type of fertilizer for the tree) |
| dependent variable | Variable that is observed and that changes in response to the independent variable ( EG: Height of a tree due to type of fertilizer) |
| Qualitative ( data) | Information describing color, odor, shape, or some other physical characteristic |
| Quantitative (data) | Data associated with mathematical models and statistical techniques used to analyze spatial location and association. |
| Sub-atomic | Particle inside atoms |
| Macromolecule | very large molecules only produced by living cells |
| Organelle | Specialized part inside of a cell ( Mitochondria, DNA, RNA) |
| Cell | smallest unit of life |
| Tissue | a group of similar cells working together |
| Organ | a group of tissues working together |
| Organ system | a group of organs working together |
| Organism | A living thing ( human, fish, bacterium) |
| polar covalent bond | unequal sharing of electrons |
| physical change | Bonds are not broken/formed |
| Chemical change | The number of each type of atom is the same in reactant and product side |
| Cellular respiration | oxygen+glucose = energy+carbon Dioxide+water |
| Photosynthesis | Carbon dioxide +water = oxygen+ glucose |
| HONC-1234 | number of bonds they form |
| Monomer | Small Chemical Unit that makes up a polymer |
| Polymer | Molecules composed of many monomers; make up a macromolecule |
| synthesis | A chemical reaction where monomers join to build a polymer. Water is formed |
| Degradation | A chemical reaction where a polymer breaks into many monomers. Water is used. |
| Nucleic Acid | Are molecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus. |
| Carbohydrates | Compound made up of Carbon, hydrogen, and oxygen atoms |
| Monosaccharides | Simple sugar molecules |
| Glucose | type of sugar |
| Polysaccharides | large macromolecules formed from monosaccharides |
| Lipids | Macromolecules made mostly from carbon, and hydrogen atoms. |
| Triglycerides | Three glycerol molecules together. |
| protein | Macromolecule that contains carbon, hydrogens, oxygen, and nitrogen. |
| Amino Acid | Compound with an amino group on one end and a carboxyl group on the other |
| Polypeptide | Long chain of amino acids that make proteins. |
| hydrophilic | Attracted to water |
| Hydrophobic | fear of water |
Created by:
Sania Wong
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