module 2•2 - biological molecules

Question 1

reaction that occurs when two molecules are joined together with the removal of water

Answer 1

condensation reaction

Question 2

a weak interaction between a slightly negatively charged atom and and a hydrogen atom

Answer 2

hydrogen bond

Question 3

reaction that occurs when a molecule is split into two smaller molecules using a water molecule

Answer 3

hydrolysis

Question 4

a bond formed between two monosaccharides by hydrolysis

Answer 4

glycosidic bond

Question 5

a group of molecules containing C, H and O

Answer 5

carbohydrates

Question 6

a group of substances that are soluble in alcohol
e.g. triglycerides, phospholipids, cholesterol

Answer 6

lipids

Question 7

monomers of all proteins with the same basic structure

Answer 7

amino acids

Question 8

a bond formed when two amino acids are joined by condensation reaction

Answer 8

peptide bond

Question 9

sequence of amino acids found in a molecule

Answer 9

primary structure

Question 10

protein structure when it consists of more than one polypeptide chain

Answer 10

quaternary structure

Question 11

coiling/folding of amino acid chain into a helix or pleated sheet

Answer 11

secondary structure

Question 12

overall 3D shape of a protein molecule

Answer 12

tertiary structure

Question 13

types of bonding in tertiary structure

Answer 13

hydrogen bonding, disulfide bridges, ionic bonds and hydrophobic interactions

Question 14

has a long, thin structure and is insoluble in water

Answer 14

fibrous protein

Question 15

molecule of relatively spherical shape and is soluble in water

Answer 15

globular protein

Question 16

non-protein component that forms a permanent part of a functioning protein molecule

Answer 16

prosthetic group