Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
36 Cards in this Set
- Front
- Back
|
Element |
Pure sunstance |
|
|
Compound |
A substance that consists of 2 or more elements |
|
|
Chemical bond |
A force that holds molecules together |
|
|
Chemical reaction |
A process that changes some chemical substances into others |
|
|
Organic compound |
A compound found mainly in living things |
|
|
Carbohydrate |
An organic compound such as sugar or starch used to store energy |
|
|
Monosaccharide |
Simple sugar such as fructose or glucose |
|
|
Lipid |
An organic compound such as fat or oil |
|
|
Saturated fatty acids |
Carbon atoms are bonded to as many hydrogen atoms as possible |
|
|
Unsaturated fatty acids |
Some carbon atoms are not bonded to as many hydrogen atoms as possible |
|
|
Protein |
Organic compound made up of small molecules called amino acids |
|
|
Amino acids |
Molecules commonly found in the proteins of living things |
|
|
Polypeptide |
Amino acids bound together in a long chain |
|
|
Nucleic acid |
Organic compound built of small units |
|
|
Nucleotide |
Small units that build a nucleic acid |
|
|
Polynucleotide |
Nucleotides bound together to form a chain |
|
|
DNA |
(Deoxyribonucleic acid) consists of two polynucleotide chains |
|
|
RNA |
(Ribonucleic acid) just one polynucleotide chain |
|
|
Complementary bate pairs |
Binds with just one type of base (cytosine > guanine ; adenine > thymine ) |
|
|
Double helix |
The binding of complementary bases |
|
|
Reactant |
A substance that starts a chemical reaction |
|
|
Product |
A substance that forms as a result of a chemical reaction |
|
|
Exothermic reaction |
A chemical reaction that releases energy (as heat) |
|
|
Endothermic reaction |
A chemical reaction that absorbs energy |
|
|
Activation energy |
The energy needed to start a chemical reactiom |
|
|
Biochemical reactiom |
Chemical reactions that take place inside the cells of living things |
|
|
Metabolism |
The sum of all biochemical reactions |
|
|
Catabolic reactions |
Break down molecules into smaller units and release energy |
|
|
Anabolic reactions |
Build up bigger molecules from smaller ones |
|
|
Enzyme |
A protein that speeds up a biochemical reaction |
|
|
Polarity |
A difference in electrical charge between different parts of the same molecule |
|
|
Hydrogen bond |
Type of bond that forms between molecules |
|
|
Solution |
A mixture of two or more substances that has the same composition throughout |
|
|
pH |
A scale that measures acidity |
|
|
Acid |
A solution with a pH lower than 7 |
|
|
Base |
A solution with a pH higher than 7 |
