monomers and polymers

Question 1

monomer

Answer 1

the smaller units from which larger molecules are made

Question 2

polymer

Answer 2

molecules made from a large number of monomers joined together

Question 3

examples of monomers

Answer 3

monosaccharides, amino acids and nucleotides

Question 4

what joins molecules

Answer 4

a condensation reaction joins two molecules together with the formation of a chemical bond and involves the elimination of a molecule of water

Question 5

what breaks molecules

Answer 5

a hydrolysis reaction breaks a chemical bond between two molecules and involves the use of a water molecule

Question 6

covalent bond

Answer 6

2 or more atoms held together by the sharing or transfer of electrons in the outermost shell

• stable

Question 7

ionic bond

Answer 7

electrons are transferred from one atom to another

Question 8

intermolecular forces

Answer 8

are not bonds

weak forces of attraction between molecules

Question 9

H-bonds - water

Answer 9

O atom pulls all 8 electrons towards itself, causing that part of the water molecule to to be a negative dipole

H atoms known as positive dipole

the positive dipole is attractive to the negative dipole of another water molecule forming H-bond

Question 10

H-bond

Answer 10

a weak force of attraction between an H atom of one molecule and either an O atom or an N atom of another molecule

Question 11

condensation reaction

Answer 11

a chemical bond forms between 2 molecules and a molecule of water if produced

Question 12

hydrolysis reaction

Answer 12

a water molecule is used to break a chemical bond between 2 molecules