AQA AS LEVEL BIOLOGY EXAMINATION TEST
2026 QUESTIONS WITH ANSWERS GRADED
A+
◉ Ionic bonding. Answer: Ions with opposite charges attract one another
forming a bond
◉ Hydrogen bonding. Answer: In polar molecules, the negative region
of one polarised molecule and the positive region of another attract each
other forming a weak electrostatic bond between the two
◉ Polarised (a polar molecule). Answer: A molecule with uneven
distribution of charge
◉ Metabolism. Answer: All chemical reactions that take place in living
organisms
◉ Mole. Answer: SI unit for measuring the amount of substance
◉ One mole. Answer: Contains the same number of particles as there are
in 12g of carbon-12 atoms
,◉ Avogadro's constant. Answer:
◉ Molar solution. Answer: Contains one mole of a solute in each litre of
solution
◉ Carbohydrates. Answer: Molecules made up of carbon, hydrogen and
oxygen
◉ Organic molecule. Answer: Molecules containing carbon
◉ Monomer. Answer: A small molecule that combines with other
monomers to form polymers
◉ Polymer. Answer: A molecule made up of monomers
◉ Monosaccharide. Answer: A single monomer of a carbohydrate
◉ Disaccharide. Answer: A pair of monosaccharides joined together
◉ Polysaccharides. Answer: Many monosaccharides joined together
◉ Monosaccharide general formula. Answer:
,◉ Monosaccharides. Answer: Glucose
Galactose
Fructose
◉ Alpha glucose. Answer:
◉ Beta glucose. Answer:
◉ Reducing sugar. Answer: A sugar that can donate electrons to another
chemical
◉ Benedict's test. Answer: Test for reducing sugars
◉ Maltose. Answer: Glucose-Glucose
◉ Sucrose. Answer: Glucose-Fructose
◉ Lactose. Answer: Glucose-Galactose
◉ Glycosidic bond. Answer: The bond in carbohydrates
, ◉ Condensation. Answer: A chemical process where two molecules
combine to form a more complex one with the elimination of water
◉ Hydrolysis. Answer: The breaking down of large molecules into
smaller ones by the addition of water molecules
◉ Starch. Answer: A storage molecule found in plants, made up of alpha
glucose chains
◉ Glycogen. Answer: A storage molecule found in animals and bacteria,
made up of alpha glucose chains
◉ Cellulose. Answer: A structural molecule found plants, made up of
beta glucose chains
◉ Iodine test. Answer: Test for starch
◉ Lipids. Answer: Substances that contain carbon, oxygen and
hydrogen, but the proportion of oxygen to carbon and hydrogen is much
less than in carbohydrates
◉ Triglyceride. Answer: An individual lipid molecule made up of a
glycerol and three fatty acid chains
2026 QUESTIONS WITH ANSWERS GRADED
A+
◉ Ionic bonding. Answer: Ions with opposite charges attract one another
forming a bond
◉ Hydrogen bonding. Answer: In polar molecules, the negative region
of one polarised molecule and the positive region of another attract each
other forming a weak electrostatic bond between the two
◉ Polarised (a polar molecule). Answer: A molecule with uneven
distribution of charge
◉ Metabolism. Answer: All chemical reactions that take place in living
organisms
◉ Mole. Answer: SI unit for measuring the amount of substance
◉ One mole. Answer: Contains the same number of particles as there are
in 12g of carbon-12 atoms
,◉ Avogadro's constant. Answer:
◉ Molar solution. Answer: Contains one mole of a solute in each litre of
solution
◉ Carbohydrates. Answer: Molecules made up of carbon, hydrogen and
oxygen
◉ Organic molecule. Answer: Molecules containing carbon
◉ Monomer. Answer: A small molecule that combines with other
monomers to form polymers
◉ Polymer. Answer: A molecule made up of monomers
◉ Monosaccharide. Answer: A single monomer of a carbohydrate
◉ Disaccharide. Answer: A pair of monosaccharides joined together
◉ Polysaccharides. Answer: Many monosaccharides joined together
◉ Monosaccharide general formula. Answer:
,◉ Monosaccharides. Answer: Glucose
Galactose
Fructose
◉ Alpha glucose. Answer:
◉ Beta glucose. Answer:
◉ Reducing sugar. Answer: A sugar that can donate electrons to another
chemical
◉ Benedict's test. Answer: Test for reducing sugars
◉ Maltose. Answer: Glucose-Glucose
◉ Sucrose. Answer: Glucose-Fructose
◉ Lactose. Answer: Glucose-Galactose
◉ Glycosidic bond. Answer: The bond in carbohydrates
, ◉ Condensation. Answer: A chemical process where two molecules
combine to form a more complex one with the elimination of water
◉ Hydrolysis. Answer: The breaking down of large molecules into
smaller ones by the addition of water molecules
◉ Starch. Answer: A storage molecule found in plants, made up of alpha
glucose chains
◉ Glycogen. Answer: A storage molecule found in animals and bacteria,
made up of alpha glucose chains
◉ Cellulose. Answer: A structural molecule found plants, made up of
beta glucose chains
◉ Iodine test. Answer: Test for starch
◉ Lipids. Answer: Substances that contain carbon, oxygen and
hydrogen, but the proportion of oxygen to carbon and hydrogen is much
less than in carbohydrates
◉ Triglyceride. Answer: An individual lipid molecule made up of a
glycerol and three fatty acid chains
