Term | Definition |
This is made up of only one kind of atom | Element |
This is made up of two or more elements that are chemically combined | Compound |
You can start a fire by rubbing 2 sticks together. The friction is the | Activation energy |
When the H of one water molecule is attracted to the O of another water molecule this is a | Hydrogen bond |
It an atom loses an electron it becomes a(n) | cation |
When an atom gains an electron it becomes a(n) | anion |
When a ___ bond is formed the shared electrons help to fill electron shells. | Covalent |
This type of bond is formed when electrons are transferred between atoms. | Ionic |
This food has a high concentration of H+ ions. | Apple, pH 2.9 |
This food has a low concentration of H+ ions. | Milk, pH 8.6 |
Carbohydrates do not contain this element. | Nitrogen |
The monomer of a carbohydrate is | Glucose |
Nitrogen is found in this macromolecule. | Protein |
Glycerol and fatty acids are the building blocks for this. | Lipid |
The # of thymine molecules in a sample of DNA will always be the same as the # of these. | Adenine |
The primary use of this macromolecule is as a source of energy. | Carbohydrate |
In order to bond two amino acids together ___ must be released. | Water |
The 4 nucleotides in DNA differ from one another only in the ___ they contain. | Nitrogen Base |
This base will NOT be found in an RNA molecule. | Thymine |
Genetic information is passed from parent to offspring in the form of this. | DNA |
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The monomer of a protein is a(n) ___. | Amino Acid |
The reaction in which a bond is broken releasing a monomer from a polymer. | Hydrolysis |
A reaction in which a bond is created between monomers. | Dehydration Synthesis |
These bonds hold amino acids together. | Peptide |
This is the type of bond that holds that atoms togehter within a water molecule | Polar Covalent Bond |
This is the type of bond that holds two separate molecules of water together. | Hydrogen |
When water molecules stick to eachother it is called this. | Cohesion |
When water molecules stick to other surfaces it is called this. | Adhesion |
A paperclip can be floated on the surface of water because of this property. | Surface Tension |
Water is an efficient solvent because of this | polarity |
Water absorbs and stores a large amount of heat while warming up is due to this property. | High specific heat capacity |
Water becomes ___ dense as it changes from a liquid to a solid. | Less |