AQA GCSE COMBINED SCIENCE: TRILOGY
8464/B/2H HIGHER TIER BIOLOGY PAPER
2H 2022 PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ Name the two types of Eukaryotic cells.
Answer: Plant cells, animal cells
◍ What type of cells are Prokaryotic cells?.
Answer: Bacteria cells
◍ Where are chromosomes found in an animal cell.
Answer: Nucleus
◍ classification.
Answer: grouping species with similar features
◍ kingdom, phylum, class, order, family, genus, species.
Answer: Linnaeus' classification system
◍ Kungfu Panda Can Overpower Fierce Goblin Spies.
Answer: Mnemonic for Linnaeus' classification system
◍ binomial system.
Answer: naming species using Latin words; always two words - genus and
species
◍ environment.
Answer: all the conditions that surround a living organism
◍ habitat.
Answer: the place where an organism lives
,◍ population.
Answer: all the members of a single species that live together in a habitat
◍ Describe the DNA in a bacteria cell.
Answer: A single DNA loop or a DNA ring (plasmid)
◍ ecosystem.
Answer: a community and the habitat in which it lives, including all biotic
and abiotic parts of the environment
◍ biotic.
Answer: living
◍ abiotic.
Answer: non-living
◍ What is 'centi' in standard form?.
Answer: 10 to the power of -2
◍ Carl Woese.
Answer: developer of the 'three-domain' system based on evidence from
chemical analysis
◍ What is 'milli' in standard form?.
Answer: 10 to the power of -3
◍ What is 'micro' in standard form?.
Answer: 10 to the power of -6
◍ archaea, bacteria, eukaryota.
Answer: the three domains
◍ What is 'nano' in standard form?.
Answer: 10 to the power of -9
◍ archaea.
Answer: primitive extremophile bacteria
◍ List the five parts of an animal cell.
Answer: Nucleus, Cytoplasm, Cell membrane, Mitochondria, Ribosomes
,◍ List the three parts of a cell only found in plant cells.
Answer: Vacuole (filled with cell sap), Chloroplasts, Cell wall
◍ bacteria.
Answer: true bacteria
◍ What is a cell wall made of in a plant cell?.
Answer: Cellulose
◍ eukaryota.
Answer: protists, plants, animals and fungi
◍ extremophile.
Answer: an archaean microorganism that thrives in an extreme environment
which is hostile to most organisms
◍ interdependence.
Answer: in a community, changes in the population of one species have an
effect on the populations of other species, because species depend on each
other for things such as food, shelter and seed dispersal
◍ stable community.
Answer: all the species and environmental factors are balanced, the
population sizes of different species stay fairly constant
◍ What function does cellulose have in a cell wall?.
Answer: Provides strength
◍ light, space, water, nutrients.
Answer: things plants compete for
◍ food, water, mates, territory.
Answer: things animals compete for
◍ Name three specialised animal cells.
Answer: Sperm, Nerve, Muscle
◍ adaptations.
Answer: features or characteristics that allow an organism to live
, successfully in its habitat
◍ thick fur on top of body for shade; thin fur elsewhere to facilitate easy heat
loss; large, flat feet to spread weight on sand; large SA:V ratio to maximise
heat loss; ability to tolerate body temperatures up to 42°C; slit-like nostrils
and two rows of eyelashes to keep out sand; lose very little water through
urination and perspiration to be able to survive for a long time without
water.
Answer: hot climate adaptations of a camel
◍ white appearance for camouflage; thick layers of fat and fur for insulation;
small SA:V ratio to minimise heat loss; greasy coat to shed water.
Answer: cold climate adaptations of a polar bear
◍ furry back feet with large surface area to facilitate walking on snow; white
fur in winter and reddish-brown fur in summer for camouflage.
Answer: cold climate adaptations of a snowshoe hare
◍ grow close to the ground to avoid wind damage; small leaves to conserve
water.
Answer: cold climate adaptations of Arctic plants
◍ Name three specialised plant cells.
Answer: Xylem, Root hair, Phloem
◍ fleshy stems to store water; widespread root systems to collect water from a
large area; spines instead of leaves to minimise surface area and reduce
water loss by transpiration and to protect from animals.
Answer: hot climate adaptations of cacti
◍ behavioural adaptations.
Answer: ways in which an organism acts that help it survive in its
environment
◍ migration, hibernation and hunting behaviours.
Answer: examples of behavioural adaptations
◍ What is cell differentiation?.
8464/B/2H HIGHER TIER BIOLOGY PAPER
2H 2022 PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ Name the two types of Eukaryotic cells.
Answer: Plant cells, animal cells
◍ What type of cells are Prokaryotic cells?.
Answer: Bacteria cells
◍ Where are chromosomes found in an animal cell.
Answer: Nucleus
◍ classification.
Answer: grouping species with similar features
◍ kingdom, phylum, class, order, family, genus, species.
Answer: Linnaeus' classification system
◍ Kungfu Panda Can Overpower Fierce Goblin Spies.
Answer: Mnemonic for Linnaeus' classification system
◍ binomial system.
Answer: naming species using Latin words; always two words - genus and
species
◍ environment.
Answer: all the conditions that surround a living organism
◍ habitat.
Answer: the place where an organism lives
,◍ population.
Answer: all the members of a single species that live together in a habitat
◍ Describe the DNA in a bacteria cell.
Answer: A single DNA loop or a DNA ring (plasmid)
◍ ecosystem.
Answer: a community and the habitat in which it lives, including all biotic
and abiotic parts of the environment
◍ biotic.
Answer: living
◍ abiotic.
Answer: non-living
◍ What is 'centi' in standard form?.
Answer: 10 to the power of -2
◍ Carl Woese.
Answer: developer of the 'three-domain' system based on evidence from
chemical analysis
◍ What is 'milli' in standard form?.
Answer: 10 to the power of -3
◍ What is 'micro' in standard form?.
Answer: 10 to the power of -6
◍ archaea, bacteria, eukaryota.
Answer: the three domains
◍ What is 'nano' in standard form?.
Answer: 10 to the power of -9
◍ archaea.
Answer: primitive extremophile bacteria
◍ List the five parts of an animal cell.
Answer: Nucleus, Cytoplasm, Cell membrane, Mitochondria, Ribosomes
,◍ List the three parts of a cell only found in plant cells.
Answer: Vacuole (filled with cell sap), Chloroplasts, Cell wall
◍ bacteria.
Answer: true bacteria
◍ What is a cell wall made of in a plant cell?.
Answer: Cellulose
◍ eukaryota.
Answer: protists, plants, animals and fungi
◍ extremophile.
Answer: an archaean microorganism that thrives in an extreme environment
which is hostile to most organisms
◍ interdependence.
Answer: in a community, changes in the population of one species have an
effect on the populations of other species, because species depend on each
other for things such as food, shelter and seed dispersal
◍ stable community.
Answer: all the species and environmental factors are balanced, the
population sizes of different species stay fairly constant
◍ What function does cellulose have in a cell wall?.
Answer: Provides strength
◍ light, space, water, nutrients.
Answer: things plants compete for
◍ food, water, mates, territory.
Answer: things animals compete for
◍ Name three specialised animal cells.
Answer: Sperm, Nerve, Muscle
◍ adaptations.
Answer: features or characteristics that allow an organism to live
, successfully in its habitat
◍ thick fur on top of body for shade; thin fur elsewhere to facilitate easy heat
loss; large, flat feet to spread weight on sand; large SA:V ratio to maximise
heat loss; ability to tolerate body temperatures up to 42°C; slit-like nostrils
and two rows of eyelashes to keep out sand; lose very little water through
urination and perspiration to be able to survive for a long time without
water.
Answer: hot climate adaptations of a camel
◍ white appearance for camouflage; thick layers of fat and fur for insulation;
small SA:V ratio to minimise heat loss; greasy coat to shed water.
Answer: cold climate adaptations of a polar bear
◍ furry back feet with large surface area to facilitate walking on snow; white
fur in winter and reddish-brown fur in summer for camouflage.
Answer: cold climate adaptations of a snowshoe hare
◍ grow close to the ground to avoid wind damage; small leaves to conserve
water.
Answer: cold climate adaptations of Arctic plants
◍ Name three specialised plant cells.
Answer: Xylem, Root hair, Phloem
◍ fleshy stems to store water; widespread root systems to collect water from a
large area; spines instead of leaves to minimise surface area and reduce
water loss by transpiration and to protect from animals.
Answer: hot climate adaptations of cacti
◍ behavioural adaptations.
Answer: ways in which an organism acts that help it survive in its
environment
◍ migration, hibernation and hunting behaviours.
Answer: examples of behavioural adaptations
◍ What is cell differentiation?.
