9700 B2 Key words

A structural isomer of glucose that exists in a ring form where the hydroxyl group on carbon-1 lies below the plane of the ring.

• Alpha glucose

• Beta glucose

• Fructose

• Ribose

The monomers containing an amino group (NH,), a carboxyl group (COOH) and a variable R group that make up proteins.

• Amino acids

• Fatty acids

• Sugars

• Nucleotides

A branched polysaccharide made up of alpha glucose monomers joined by a-1,6 glycosidic bonds that makes up starch.

• Amylose

• Amylopectin

• Glycogen

• Cellulose

An unbranched, helical polysaccharide made up of alpha glucose monomers joined by a-1,4 glycosidic bonds that makes up starch (along with another polysaccharide)

• Amylose

• Amylopectin

• Cellulose

• Glycogen

A biochemical test for reducing sugars that produces a different colour based on the amount of reducing sugar present.

• Biuret test

• Qualitative Benedict's test

• Quantitative Benedict's test

• Semi-quantitative Benedict's test

A structural isomer of glucose that exists in a ring form where the hydroxyl group on carbon-1 lies above the plane of the ring.

• Alpha glucose

• Beta glucose

• Fructose

• Ribose

A biochemical test that produces a purple colour when it is added to a solution containing protein.

• Biuret test

• Burette test

• Benedict's test

• Ethanol test

A polysaccharide made of beta glucose monomers joined by 1,4 glycosidic bonds that is used as a structural polysaccharide, providing strength to plant cell walls.

• Glycogen

• Chitin

• Cellulose

• Amylose

A type of fibrous protein with a triple helix structure that provides strength to many different cell types and makes up connective tissues.

• Keratin

• Collagen

• Haemoglobin

• Cellulose

A type of reaction that joins two molecules together with the formation of a chemical bond involving the elimination of a molecule of water.

• Hydrogenation

• Hydrolysis

• Condensation

• Polymerisation