Molecule And Atoms Flashcards
Activation energy
Energy to get a reaction started 
Amino acid 
 Monomer of protein 
Atom 
Basic Unit of a chemical element 
Attraction 
Feeling of one thing being drawn toward another 
 carbohydrate 
Compound made up of carbon hydrogen and oxygen atoms also a type of nutrient that is a major source of energy for the body 
Catalyst 
Substance that speeds up the rate of a chemical reaction 
Chemical change
 A change that occurs when one or more substances change into entirely new substances with different properties 
Compound 
Substance formed by the chemical combination of two or more elements in definite proportions 
 Concentration 
A measurement of how much solute exists with a certain volume of solvent 
Conservation of mass 
The principal stating that matter is not created nor destroyed during a chemical reaction 
Disaccharide
A double sugar molecule made of two monosaccharides bonded together through dehydration synthesis 
Energy
The ability to do work 
Enzyme 
A type of protein that speeds up a chemical reaction 
Fatty acid
Hydrocarbon chain, often bonded to glycerol in a lipid 
Heat
Thermal energy in transfer from one body of matter to another 
Molecule
A group of atoms bonded together 
Monomer
A simple compound whose molecules can join together to form polymers 
Monosaccharide
A single sugar, molecule, such as glucose or fructose, the simplest type of sugar 
Nucleotide
Monomer of nucleic acids made up of a five carbon sugar, a phosphate group, and a nitrogenous base
pH
Hydrogen ion concentration 
Phospholipid 
A molecule that is a constituent of the inner bilayer of biological membranes, having a polar, hydrophilic head, and a non-polar, hydrophobic tail 
Physical change
A change of matter from one form to another, without a change in chemical properties 
Polymer 
Large compound formed from combinations of many monomers 
 Polysaccharide 
Carbohydrates that are made up of more than two monosaccharides 
Potential energy
Stored energy
Rate of reaction
 Measure of how fast a chemical reaction occurs 
Solubility 
The ability to dissolve in another substance
 Solute
A substance that is dissolved in a solution 
 Solvent
A liquid substance capable of dissolving another substance in a solution 
Steroid
Lipid molecule with four fused carbon rings 
Temperature
A measure of how hot or cold something is
Triglyceride
A lipid made of three fatty acid molecules, and one glycerol molecule 
Van der Waals force
A slight attraction that develops between the oppositely charged regions of nearby molecule 
