AQA A-LEVEL BIOLOGY Questions With Accurate Answers
polymer - Accurate answers long molecules formed from combinations of many monomers joined
together
condensation reaction - Accurate answers a chemical reaction in which two or more molecules join
and produces one water molecule
hydrolysis reaction - Accurate answers A chemical reaction that breaks apart a larger molecule by
adding a molecule of water
isomers - Accurate answers Compounds with the same chemical formulae but different structures.
carbohydrates - Accurate answers compounds made from carbon, hydrogen and oxygen
(monosaccharides, disaccharides and polysaccharides), important energy store
monosaccharide - Accurate answers simple sugars (glucose, fructose, galactose)
disaccharide - Accurate answers two monosaccharides joined together by a glycosidic bond
polysaccharide - Accurate answers many sugar units joined by a glycosidic bond
maltose - Accurate answers α glucose + α glucose
lactose - Accurate answers glucose + galactose
sucrose - Accurate answers glucose + fructose
, where is lactose found? - Accurate answers milk
where is maltose found? - Accurate answers germinating seeds
where is sucrose found? - Accurate answers table sugar
cellulose - Accurate answers polymer of β glucose
starch - Accurate answers polymer of α glucose (amylose + amylopectin)
what is the structure of cellulose? - Accurate answers long, unbranched chains of β glucose,
insoluble
where is cellulose found? - Accurate answers plant cell walls
why is cellulose strong? - Accurate answers chains linked by h bonds form microfibrils giving high
tensile strength to prevent osmotic lysis
polymer - Accurate answers long molecules formed from combinations of many monomers joined
together
condensation reaction - Accurate answers a chemical reaction in which two or more molecules join
and produces one water molecule
hydrolysis reaction - Accurate answers A chemical reaction that breaks apart a larger molecule by
adding a molecule of water
isomers - Accurate answers Compounds with the same chemical formulae but different structures.
carbohydrates - Accurate answers compounds made from carbon, hydrogen and oxygen
(monosaccharides, disaccharides and polysaccharides), important energy store
monosaccharide - Accurate answers simple sugars (glucose, fructose, galactose)
disaccharide - Accurate answers two monosaccharides joined together by a glycosidic bond
polysaccharide - Accurate answers many sugar units joined by a glycosidic bond
maltose - Accurate answers α glucose + α glucose
lactose - Accurate answers glucose + galactose
sucrose - Accurate answers glucose + fructose
, where is lactose found? - Accurate answers milk
where is maltose found? - Accurate answers germinating seeds
where is sucrose found? - Accurate answers table sugar
cellulose - Accurate answers polymer of β glucose
starch - Accurate answers polymer of α glucose (amylose + amylopectin)
what is the structure of cellulose? - Accurate answers long, unbranched chains of β glucose,
insoluble
where is cellulose found? - Accurate answers plant cell walls
why is cellulose strong? - Accurate answers chains linked by h bonds form microfibrils giving high
tensile strength to prevent osmotic lysis
