Biochemical Unit 4 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

The smallest portion of an element

A

Atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The center part of an atom that contains protons and neutrons

A

Nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A particle in an atom found in the nucleus that has a positive electrical charge

A

Proton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A particle in an atom found in the nucleus that has no electrical charge

A

Neutron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A particle in an atom that has a negative electrical charge

A

Electron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Substance that cannot be separated into a simpler substance, examples: Carbon, oxygen, gold

A

Element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

An orderly of elements based on their atomic numbers

A

Periodic table

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

An element’s position in the periodic table based on (and equal to) the number of protons it has in its nucleus

A

Atomic number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Anything that has mass and occupies space

A

Matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Atoms of the same element that had different numbers of neutrons in the nucleus

A

Isotopes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The mass contained in an element nucleus, which is equal to the number of protons plus the number of neutrons.

A

Atomic Mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The distance the electrons travel around the nucleus of an atom

A

Electron energy level

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A chemical combination of two or more atoms or elements

A

Chemical compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Process that occurs when one substance is changed into another

A

Chemical reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

An elements ability or tendency to combine with another element

A

Reactivity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Tendency of atoms to gain, lose, or share their electrons

A

Octet rule

17
Q

The attractive force between atoms that is forced when atoms transfer or share their electrons

A

Chemical bound

18
Q

A diagram of an atom that represents its valence electrons as dots around the chemical symbol

A

Electron dot diagram

19
Q

A connection between atoms when electrons are attracted, shared, or transferred

A

Chemical bound

20
Q

A bond formed when elements transfer electrons (gain or lose)!!!

A

Ionic bound

21
Q

An electrically charged “atom” that has either gained or lost electrons.

A

Ion

22
Q

A bound formed when elements share electrons (SHARE)!

A

Covenant bound

23
Q

Carbon containing compounds that make up living tissue

A

Organic compound

24
Q

Molecule that has a partial positive on one end and a partial negative on the other end

A

Polar molecule

25
Q

In case of water molecules, the weak bond that occurs when the hydrogen in one molecule is attracted to the oxygen in another water molecule

A

Hydrogen bond

26
Q

The attraction between molecules of the same kind

A

Cohesion

27
Q

The film like quality on the surface of a liquid that is caused by the attraction of liquid molecule to themselves

A

Surface tension

28
Q

The attraction of one type of molecule to a different type of molecule

A

Adhesion

29
Q

The tendency of a liquid to draw up into a narrow tube due to the liquids properties of cohesion and adhesion

A

Capillary action

30
Q

The amount of heat needed to raise the temperature of one gram of a substance one degree Celsius

A

Specific heat

31
Q

A substance that dissolved another

A

Solvent

32
Q

An atom or molecule that had gained or lost electrons so that it has a positive or negative charge

A

Ion

33
Q

Any process that occurs In a living organism, such as muscle movement in animals or photosynthesis in plants

A

Biological process

34
Q

A measure of acidity or alkalinity of a substance

A

pH

35
Q

A solution with more hydrogen ions than hydroxide ions; having a pH less that 7

A

Acid

36
Q

A solution with more hydroxide ions than hydrogen ions; with a pH more than 7

A

Base

37
Q

A substance that prevents the pH of a solution from changing even if a small amount of an acid or base is added

A

Buffer