The Chemistry Of Life Chapter 2 Flash Cards

Front 1

Atom

Back 1

The smallest unit that still is an element. Greek word "atomos" unable to be cut.

Front 2

Nucleus

Back 2

The center of an atom.Contains the protons(+) and neutrons(no charge)

Front 3

Ionic bond

Back 3

chem. bond formed when atoms are transferred from 1 atom to another.Atom either gains or loses electron.

Front 4

Covalent bond

Back 4

Chem. bond where atoms share electrons.Can share many atoms

Front 5

Hydrogen bond

Back 5

Attraction between a hydrogen atom with a partial (-) charge with an atom with a partial (+) charge

Front 6

Polar bond

Back 6

A covalent bond where atoms aren't shared equally.

Front 7

Ion

Back 7

Positive or negatively charged atoms

Front 8

Mixture

Back 8

A material made of 2 or more elements physically mixed together

Front 9

Solution

Back 9

All the components are evenly distributed throughout the solution

Front 10

pH

Back 10

measuring system showing the concentration of H+ ions in a sloution

Front 11

Acid

Back 11

Any compound that forms H+ ions in a solution. Acids have pH of less than 7

Front 12

Base

Back 12

Compound that forms OH-(hydroxide) in a solution. Bases have a pH value of more than 7

Front 13

Polymer

Back 13

Macromolecule -Giant molecule made of many smaller molecules.

Front 14

Monosaccharide

Back 14

A monomer of a Carbohydrate

Front 15

Disaccharide

Back 15

A dimer of a Carbohydrate

Front 16

Polysaccharide

Back 16

Giant chain of monosaccharides put together

Front 17

Lipid

Back 17

1 type of Macromolecule. Made of only Carbon and Hydrogen atoms

Front 18

Protein

Back 18

Macromolecule that contain Nitrogen,Carbon, Hydrogen,and Oxygen. Proteins are monomers of Amino acids

Front 19

Amino Acid

Back 19

An enzyme. Found in living things that help chem. reactions to occur

Front 20

All names of enzymes end in _

Back 20

ASE ex;salivary amylase

Front 21

AE

Back 21

Activation Energy, energy needed to start a chemical reaction

Front 22

Do AE requirements vary depending on reation?

Back 22

Yes

Front 23

Endothermic reaction

Back 23

Type of chem. reaction where energy is absorbed

Front 24

Exothermic energy

Back 24

Type of chem. reaction where energy is released