Biochemistry Unit Vocabulary #1 And #2

Front 1

Atom: the smallest unit of matter that cannot be broken down by chemical means. Different from a cell

Back 1

Element: A pure substance made of only one kind of atom. Examples are seen on the Periodic table of elements

Front 2

Chemical bond: A substance made of the joined atoms of two or more atoms. Examples include: hydrogen bond,ionic bonds and covalent bonds

Back 2

Hydrogen bond: A weak chemical attraction between polar molecules. Polar molecules are molecules with an unequal distribution of electrical charges

Front 3

Compound: A substance made of the joined atoms of two or more different elements.

Back 3

Matter: is anything that has mass and takes up space

Front 4

Covalent bond: form when two or more atoms share electrons to form a molecule

Back 4

Molecule: A group of atoms held together by covalent bonds

Front 5

Acid: Compounds that form hydrogen bonds when dissolved in water. Their pH is less than 7.

Back 5

Adhesion: An attraction between different substances.

Front 6

Base: Compounds that reduce the concentration of hydrogen ions in a solution. Their pH is more than 7

Back 6

Capillary action: the ability of a liquid to flow in narrow spaces without the assistance of, and in opposition to,external forces like gravity

Front 7

Cohesion

Back 7

An attraction between substances of the same kind

Front 8

Polarity

Back 8

the ability or characteristic that produces unequal physical effects at different points in a body or system, as a magnet or storage battery

Front 9

surface tension

Back 9

Surface tension is the elastic tendency of liquids which makes them acquire the least surface area possible. This makes surfaces hard to break.

Front 10

Chemical Reaction

Back 10

a process that leads to the transformation of one set of chemical substances to another.

Front 11

pH

Back 11

A numeric scale that helps to determine of a substance is more acidic or alkaline (Base)

Front 12

Isotope

Back 12

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

Front 13

Poly -

Back 13

Many; several

Front 14

Sub-

Back 14

Below; under

Front 15

Mono -

Back 15

One; single

Front 16

De -

Back 16

Away from; down

Front 17

En-; Endo-; ent-

Back 17

in; into; within

Front 18

Exo/ecto

Back 18

Outside of

Front 19

Co

Back 19

with; together

Front 20

A or an

Back 20

Not; or non

Front 21

Auto

Back 21

Self

Front 22

Bio

Back 22

Life; living

Front 23

Carne

Back 23

Flesh

Front 24

Herb

Back 24

Plants

Front 25

Hetero

Back 25

Different

Front 26

Homo

Back 26

Alike, similar

Front 27

Ology

Back 27

study of