3.1 Biological Molecules

Question 1

what are monomers?

Answer 1

smaller units from which larger molecules are made

Question 2

what are polymers?

Answer 2

molecules made up of monomers joined together

Question 3

give 3 examples of monomers

Answer 3

monosaccharides, amino acids and nucleotides

Question 4

what is a condensation reaction?

Answer 4

joins 2 molecules together and forms a chemical bond - removes a water molecule

Question 5

what is a hydrolysis reaction?

Answer 5

breaks a chemical bond between 2 molecules using a water molecule

Question 6

what are monosaccharides? give 3 examples

Answer 6

monomers from which larger carbohydrates are made.
glucose, galactose and fructose

Question 7

what is the name of the bond formed in a condensation reaction between 2 monosaccharides?

Answer 7

glycosidic bond

Question 8

In a condensation reaction, 2 monosaccharides form…

Answer 8

a disaccharide

Question 9

give 3 disaccharides and the monosaccharides they are made from

Answer 9

maltose - glucose and glucose
sucrose - glucose and fructose
lactose - glucose and galactose

Question 10

name the 2 types of glucose and draw their structure

Answer 10

a glucose and b glucose

Question 11

how are polysaccharides formed?

Answer 11

by condensation reaction of many glucose units

Question 12

give 3 examples of polysaccharides and how they are formed

Answer 12

glycogen - condensation of a glucose
starch - condensation of a glucose
cellulose - condensation of b glucose