B3 Biological Molecules

Question 1

The carbohydrate used for energy storage in plants

Answer 1

Starch

Question 2

A biological molecule containing C,H,O made of fatty acids and glycerol

Answer 2

Lipids

Question 3

A biological Molecule containing C,H,O,N made of amino acids

Answer 3

Proteins

Question 4

The building block of protein

Answer 4

Amino acids

Question 5

A biological molecule containing C,H,O made of simple sugars e.g glucose

Answer 5

Carbohydrates

Question 6

An example of a carbohydrate that is used for energy storage in animals

Answer 6

Glycogen

Question 7

An example of a carbohydrate that is used for plant cell walls

Answer 7

Cellulose

Question 8

A building block of lipids other than fatty acids

Answer 8

Glycerol

Question 9

A building block of lipids other than glycerol

Answer 9

Fatty acids

Question 10

A biological molecule containing C,H,O,N,P an example of which is DNA/RNA

Answer 10

Nucleic acids

Question 11

A solution that turns orange/red when heated with simple sugar

Answer 11

Benedict

Question 12

A solution that turns purple when added to proteins

Answer 12

Biuret

Question 13

A chemical that turns cloudy when shaken with lipids

Answer 13

Ethanol

Question 14

A solution that turns blue/black when added to starch

Answer 14

Iodine

Question 15

A solution that turns colourless in the presence of vitamin C

Answer 15

DCPIP

Question 16

An example of a protein that speeds up the rate of a chemical reaction in cells

Answer 16

Enzyme

Question 17

The building block of nucleic acids

Answer 17

Nucleotide