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3.1/3.2
biomed 3.1 and 3.2
| Question | Answer |
|---|---|
| Atom | The smallest piece of an element that can exist either alone or in combination |
| calorie | The amount of heat energy required to raise the temperature of 1g of water 1degree celsius; or the enrgy released as one gram cools by one degreeC; the food calorie (C) is actually a kilocalorie |
| chemical bond | an attractive force that holds together atoms, molecules, or ions. |
| Compound | a substance consisting of 2 or more elements in a fixed ratio |
| Covalent bond | Type of chem bond where 2 or more atoms share e- |
| element | /the smallest part of a substance that contains all the properties of the substance, and is composed of one or more atoms |
| homeostasis | the stead-state psychological condition of the body |
| hydrogen bond | a weak chem bond between the polar ends of two polar molecules |
| ionic bond | a chem bond resulting from two oppositely charged ions |
| Molecule | two or atoms held together through covalent bonds |
| nutrient | a substance that is needed by the body to maintain life/health |
| Polarity | A lack of electrical symmetry in a molecule. charge difference on opposite ends of a molecule |
| Solute | substance that is dossolved in a solution |
| Solvent | Substance that dissolves the solute in a solution |
| Solution | A liquid that is a homogeneous mixture of two or more substances |
| Adenosine Triphosphate (ATP) | compound made of an adenosine and three phosphates, supplies energy for many biochemical processes by undergoing enzymatic hydrolosis |
| Amino acid | An organic monomer which serves as a building block of proteins |
| Carbohydrate | a sugar iin the form of a monosaccharide, diasaccharideor a polysaccharide |
| chemilcal indicator | a substance used to vshow visually usually by its capacity to color change , the condition of a solution with respect to the presence of free acid or alkali or some other substance |
| Dehydration Synthesis | reaction where two molecules bond together, ut lose a water molecule |
| Diasaccharide | a double sugar molecule, two monosaccharides bonded by dehydration synthesis |
| electrolyte | any of the ions that in a biological fluid relegate or affect most biological processes |
| glucose | monomer of a carbohydrate, a simple sugear |
| hydrolosis | A chemical process that splits a molecule by adding water |
| Lipid | One of a family of compounds including; fats, phospholipids and steroids that are soluble in water |
| macromolecule | a type of giant molecule formed by joining smaller molecules which include proteins, polysaccharides, lipids, and nucleur acids |
| monomer | the subunit that serves as the building block of a polymer. |
| Monosaccharide | a single sugar molecule such as glucose or gructose, the simplest of sugars. |
| polymer | a larger molecule consisting of many repeating chemical units or molecules linked together |
| polysaccharide | a polymer of thousands of simple sugars formed by dehydration synthesis |
| protein | a three dimensional polymer made of monomers of amino acids |
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