AQA GCSE COMBINED SCIENCE: TRILOGY
FINAL TEST 2026 QUESTIONS WITH
CORRECT ANSWERS GRADED A+
◍ Gel-like substance in which most of the chemical reactions occur. Contains
enzymes which control reactions.
Answer: Cytoplasm
◍ Contains genetic material that controls the cell.
Answer: Nucleus
◍ physical processes.
Answer: mixtures can be separated by...
◍ formation at anode in electrolysis of an aqueous solution.
Answer: oxygen is produced, unless aqueous solution contains halide ions,
in which case the halogen is produced
◍ It has a long tail and a streamlined head to help it swim to the egg. There are
lots of mitochondria in the cell to provide the energy needed. It also carries
enzymes in its head to digest through the egg cell membrane..
Answer: Adaptation of a sperm cell
◍ Increases the rate of diffusion.
Answer: A higher concentration gradient
◍ paraffin waxes are used for.
Answer: candles and waterproofing
◍ Function is to contract quickly. These cells are long and contain lots of
mitochondria to generate energy (through respiration needed for
contraction)..
Answer: Muscle cells
,◍ Water will move out of the piece of potato by osmosis as there is a higher
concentration of water inside the potato, so its mass will decrease..
Answer: What will happen to the mass of a piece of potato added to a
concentrated salt solution and why?
◍ A small ring of DNA found in bacterial cells..
Answer: Plasmid
◍ The net movement of particles from an area of high concentration to an area
of low concentration.
Answer: Diffusion
◍ Cells e.g. bacteria that do not have a nucleus. DNA is free in the cytoplasm.
Answer: Prokaryotic Cells
◍ Image=Actual size x magnification.
Answer: IAM Calculation
◍ ionic equations.
Answer: show reaction between ions (show charges)
◍ catalysts only catalyse.
Answer: specific reactions
◍ Electron microscopes have a higher magnification and a higher resolution
that a light microscope. Electron microscopes let us see much smaller things
in more detail, like the internal structure of a mitochondria or chloroplast..
Answer: What is the difference between the light microscope and an
electron microscope?
◍ Made of cellulose, supports the cell.
Answer: Cell wall
◍ desalination may be used.
Answer: if fresh water supplies are limited...
◍ 0°C.
Answer: testing water purity using boiling point: pure water will melt at...
,◍ Function is to absorb water and minerals from the soil. These cells are found
on the surface of a plant's roots. They give a large surface area..
Answer: Root hair cell
◍ electrolysing a molten simple ionic compound using inert electrodes.
Answer: metal formed at cathode (metal cations are attracted), non-metal
formed at anode (non-metal anions are attracted)
◍ polymers are often formed from an.
Answer: alkene
◍ blue.
Answer: NaOH precipitate test: Cu
◍ organic chemistry: 4.
Answer: but
◍ a series of similar compounds is called a.
Answer: homologous series
◍ how metals less reactive than carbon can be extracted.
Answer: reduction with carbon
◍ The movement of water across a partially permeable membrane from a
region of high water concentration to a region of low water concentration..
Answer: Osmosis
◍ The movement of substances against a concentration gradient, i.e. from a
lower to higher concentration gradient. This process requires energy..
Answer: Active transport
◍ contains cell sap.
Answer: Vacuole
◍ not used up during a reaction.
Answer: catalyst
◍ Site of photosynthesis, contains chlorophyll.
Answer: Chloroplasts
, ◍ Moving minerals from the soil into the root hair.Moving glucose from the
gut to the bloodstream..
Answer: Give two roles of active transport
◍ fractions of crude oil: naphtha.
Answer: highly flammable, low viscosity, colourless, makes plastics, used as
cleaning fluid/solvent, found in petrol
◍ fraction.
Answer: a part of crude oil where all chemicals have a similar boiling point
◍ aluminium ore.
Answer: bauxite
◍ partially permeable membrane to control what enters and leaves the cell..
Answer: Cell membrane
◍ site of protein production.
Answer: Ribosomes
◍ effects of solid particulates.
Answer: global dimming and human health issues such as asthma
◍ choosing a source, filtering and sterilising the water.
Answer: potable water is produced by:
◍ units for mass of products/reactants.
Answer: g
◍ alkenes react with.
Answer: halogen molecules
◍ reverse osmosis or distillation.
Answer: water can be desalinated using...
◍ symbol for aqueous solution.
Answer: aq
◍ the solid in a solution.
FINAL TEST 2026 QUESTIONS WITH
CORRECT ANSWERS GRADED A+
◍ Gel-like substance in which most of the chemical reactions occur. Contains
enzymes which control reactions.
Answer: Cytoplasm
◍ Contains genetic material that controls the cell.
Answer: Nucleus
◍ physical processes.
Answer: mixtures can be separated by...
◍ formation at anode in electrolysis of an aqueous solution.
Answer: oxygen is produced, unless aqueous solution contains halide ions,
in which case the halogen is produced
◍ It has a long tail and a streamlined head to help it swim to the egg. There are
lots of mitochondria in the cell to provide the energy needed. It also carries
enzymes in its head to digest through the egg cell membrane..
Answer: Adaptation of a sperm cell
◍ Increases the rate of diffusion.
Answer: A higher concentration gradient
◍ paraffin waxes are used for.
Answer: candles and waterproofing
◍ Function is to contract quickly. These cells are long and contain lots of
mitochondria to generate energy (through respiration needed for
contraction)..
Answer: Muscle cells
,◍ Water will move out of the piece of potato by osmosis as there is a higher
concentration of water inside the potato, so its mass will decrease..
Answer: What will happen to the mass of a piece of potato added to a
concentrated salt solution and why?
◍ A small ring of DNA found in bacterial cells..
Answer: Plasmid
◍ The net movement of particles from an area of high concentration to an area
of low concentration.
Answer: Diffusion
◍ Cells e.g. bacteria that do not have a nucleus. DNA is free in the cytoplasm.
Answer: Prokaryotic Cells
◍ Image=Actual size x magnification.
Answer: IAM Calculation
◍ ionic equations.
Answer: show reaction between ions (show charges)
◍ catalysts only catalyse.
Answer: specific reactions
◍ Electron microscopes have a higher magnification and a higher resolution
that a light microscope. Electron microscopes let us see much smaller things
in more detail, like the internal structure of a mitochondria or chloroplast..
Answer: What is the difference between the light microscope and an
electron microscope?
◍ Made of cellulose, supports the cell.
Answer: Cell wall
◍ desalination may be used.
Answer: if fresh water supplies are limited...
◍ 0°C.
Answer: testing water purity using boiling point: pure water will melt at...
,◍ Function is to absorb water and minerals from the soil. These cells are found
on the surface of a plant's roots. They give a large surface area..
Answer: Root hair cell
◍ electrolysing a molten simple ionic compound using inert electrodes.
Answer: metal formed at cathode (metal cations are attracted), non-metal
formed at anode (non-metal anions are attracted)
◍ polymers are often formed from an.
Answer: alkene
◍ blue.
Answer: NaOH precipitate test: Cu
◍ organic chemistry: 4.
Answer: but
◍ a series of similar compounds is called a.
Answer: homologous series
◍ how metals less reactive than carbon can be extracted.
Answer: reduction with carbon
◍ The movement of water across a partially permeable membrane from a
region of high water concentration to a region of low water concentration..
Answer: Osmosis
◍ The movement of substances against a concentration gradient, i.e. from a
lower to higher concentration gradient. This process requires energy..
Answer: Active transport
◍ contains cell sap.
Answer: Vacuole
◍ not used up during a reaction.
Answer: catalyst
◍ Site of photosynthesis, contains chlorophyll.
Answer: Chloroplasts
, ◍ Moving minerals from the soil into the root hair.Moving glucose from the
gut to the bloodstream..
Answer: Give two roles of active transport
◍ fractions of crude oil: naphtha.
Answer: highly flammable, low viscosity, colourless, makes plastics, used as
cleaning fluid/solvent, found in petrol
◍ fraction.
Answer: a part of crude oil where all chemicals have a similar boiling point
◍ aluminium ore.
Answer: bauxite
◍ partially permeable membrane to control what enters and leaves the cell..
Answer: Cell membrane
◍ site of protein production.
Answer: Ribosomes
◍ effects of solid particulates.
Answer: global dimming and human health issues such as asthma
◍ choosing a source, filtering and sterilising the water.
Answer: potable water is produced by:
◍ units for mass of products/reactants.
Answer: g
◍ alkenes react with.
Answer: halogen molecules
◍ reverse osmosis or distillation.
Answer: water can be desalinated using...
◍ symbol for aqueous solution.
Answer: aq
◍ the solid in a solution.
