| A | B |
|---|
| activation energy | energy needed to get reation started |
| carbohydrate | made up of carbon, hydrogen & oxygen |
| catalyst | any substance used to speed up a reaction |
| controlled experiment | experiment where only 1 variable is changed |
| data | information gathered from observations |
| dehydration synthesis | removal of hydrogen & hydroxide to form H2O & join 2 molecules |
| dependent variable | varible factor in an experiment that scientist wants to observe |
| enzyme | protein that acts as a catalyst |
| hydrolysis | process adding water molecule to split a substance apart |
| hypothesis | possible answer to a scientific question |
| independent variable | factor in exper. that scientist purposely changes |
| inference | logical interpretation |
| observation | using 1 or more sense to gather info. |
| product | substance produced by a chemical reaction |
| science | organized way of using evidence to learn about natural world |
| solvent | dissolves a solute into a solution |
| substrate | molecule that an enzyme works on & reacts with |
| theory | a well-tested explanation for a broad range of observations |
| protein | molecule containing carbon, hydrogen, oxygen & nitrogen; for growth |
| lipid | BIG molecule made of Carbon, Hydrogen, Oxygen- fats |
| amino acid | building block of protein molecule NH2) |
| monosaccharide | 1 sugar molecule, simple sugars (glucose) |
| poly saccharide | BIG sugar molecule, 3 or more simple sugars (starch) |
| monomer | small building block can join w/ others to form a polymer |
| polymer | BIG molecule formed from many monomers joined together |
| acid | compound w/ a pH < 7 |
| base | compound w/ a pH > 7 |
| buffer | compound that can prevent suddened changes in pH |
| cell | basic building block of all life |
| homeostasis | "home stay as is" constant internal environment |
| metabolism | total of all chemical reactions taking place in an organism |
| organelle | structure found in cells that perform specific functions |
| prokaryote | cell w/ no separate organelles ex-bacteria |
| eukarote | complex cell w/ separate organelles |
| cell theory | cells are structural/functional units in living things |
| cell membrane | semi-permeable outer boundary of cell |
| cell wall | rigid porous structure surrounding cells in plants |
| nucleus | in cell, big membrane enclosed organelle, holds DNA |
| cytoplasm | fluid found btw nucleus & cell membrane |
| selectively permable | allows only certain molecules to pass thru |
| diffusion | movement of molecules from high to low concentration w/o energy |
| osmosis | diffusion of water through a membrane |
