biochemistry

Question 1

matter

Answer 1

takes up space and has mass

Question 2

what is matter made up of

Answer 2

atoms

Question 3

what are atoms

Answer 3

smallest unit of matter

Question 4

where is the proton located

Answer 4

nucleus

Question 5

what is the charge of a proton

Answer 5

1+

Question 6

what is the mass of a proton

Answer 6

1 amu

Question 7

where is the neutron located

Answer 7

nucleus

Question 8

what is the charge of a neutron

Answer 8

0

Question 9

what is the mass of a neutron

Answer 9

1 amu

Question 10

where is the electron located

Answer 10

energy shells

Question 11

what is the charge of an electron

Answer 11

-1

Question 12

what is the mass of an electron

Answer 12

0 amu

Question 13

valence electrons

Answer 13

electrons in the outermost shell

Question 14

element

Answer 14

composed of only 1 type of atom

Question 15

compound

Answer 15

2 or more types of atoms chemically combined

Question 16

if we change protons we change ___

Answer 16

the identity of an atom

Question 17

if we change electrons we change__

Answer 17

charge of atom

Question 18

ion

Answer 18

charged atom from +/- electron

Question 19

+ atom

Answer 19

losing electrons

Question 20

negative atoms

Answer 20

gains electrons

Question 21

if we change neutrons we change ___

Answer 21

mass of atom

Question 22

isotope

Answer 22

atom of same element with different masses- different number of neutrons

Question 23

chemical reactions

Answer 23

atoms combine or separate

Question 24

ionic bond

Answer 24

TRANSFER of electrons between atoms

Question 25

covalent bond

Answer 25

pair of electrons SHARED between atoms

Question 26

polar

Answer 26

unequal sharing

Question 27

non polar

Answer 27

equal sharing

Question 28

polar molecule is

Answer 28

charged molecule

Question 29

polarity

Answer 29

uneven sharing of electrons causes partial charges on molecule

Question 30

hydrogen bonding

Answer 30

weak bond between molecules

Question 31

cohesion

Answer 31

attraction between some molecules

Question 32

adhesion

Answer 32

attraction between different molecules

Question 33

high specific heat

Answer 33

a large amount of heat/energy is required t raise water temperature

Question 34

mixture

Answer 34

2 or more atoms/compounds physically mixed together

Question 35

solution

Answer 35

evenly mixed

Question 36

suspension

Answer 36

mixture of H2O and non dissolved material

Question 37

pH scale

Answer 37

measurement of H+ concentration in a solution

Question 38

acids

Answer 38

pH is less than 7

Question 39

bases

Answer 39

pH is greater than 7

Question 40

buffers

Answer 40

prevents large changes to pH

Question 41

water

Answer 41

polar molecule-charges

Question 42

monomer

Answer 42

single unit

Question 43

polymer

Answer 43

many units, joined monomers

Question 44

monomer of carbohydrates

Answer 44

monosaccharides (simple sugar)

Question 45

polymer of carbohydrates

Answer 45

disaccharides and polysaccharides

Question 46

monomer of lipids

Answer 46

glycerol and fatty acids

Question 47

polymer of lipids

Answer 47

neutra fats and phospholipids

Question 48

monomer of proteins

Answer 48

amino acids

Question 49

polymer of proteins

Answer 49

polypeptide

Question 50

monomer of nucleic acids

Answer 50

nucleotides

Question 51

polymer of nucleic acids

Answer 51

DNA or RNA

Question 52

elements of carbohydrates

Answer 52

C,H,O

Question 53

elements of lipids

Answer 53

C,H,O

Question 54

elements of proteins

Answer 54

C,H,O,N

Question 55

elements of nucleic acids

Answer 55

C,H,O,N,P

Question 56

you break bonds by

Answer 56

releasing energy

Question 57

you build bonds by

Answer 57

absorbing energy

Question 58

activation energy

Answer 58

energy needed to start a reaction

Question 59

enzymes

Answer 59

proteins that act as biological catalysts

Question 60

catalysts

Answer 60

speeds up reaction

Question 61

how to find average atomic mass

Answer 61

#protons + #neutrons