A-Level Biology: Finder for Past Exam Questions based on TOPIC 4
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Course
A Level
Institution
A Level
This guide is your go-to resource for studying for your A-Level Biology exam with the Edexcel Pearson exam board. We’ve put together all the old exam questions () that refer to Topic 4 and listed them with their exam dates and what the question is about.
It makes studying easier because you ca...
Question regarding Topic 4 can be found in the following past papers of:
1) International A Level Syllabus 2018
Question
Month Year Unit Question Theme Description of the Question
Number
Gall Formation in Investigation of nutrients in healthy
January 2019 1 7
Leaves leaves and leaves with galls.
Comparing the solubility of sodium
January 2020 1 4 Solubility in Blood chloride and glucose in water and
their effects on blood solubility.
Structure and function of
Prokaryotic Cell
January 2020 2 1 prokaryotic cells, including plasmid
Structure
and ribosomes
Concept of endemic species,
January 2020 2 5 Endemic Species classification and reclassification of
kingfishers
Xylem and phloem functions,
Plant Anatomy and
January 2020 2 6 effects of water stress on kenaf
Water Stress
plants
Conservation in
Biodiversity measurement and
January 2020 2 8 Bhitarkanika
conservation of saltwater crocodiles
National Park
Measuring tensile strength of plant
fibers, methods for determining
January 2020 3 2 Plant Fiber Strength
cross-sectional area and tensile
strength
Discussing the impact of plastics on
Plastics and
the environment and the potential
January 2020 4 2 Environmental
for microorganisms to evolve to
Impact
degrade them.
Examining the high biodiversity of
Rainforest
January 2020 4 4 Malaysian rainforests and the
Biodiversity and Loss
consequences of their rapid loss.
Discussing starch and cellulose in
Sugarcane and sugarcane, their role in bioplastic
January 2021 2 1
Bioplastics production, and bacterial
decomposition.
Analyzing the adaptations of a moth
Mimicry in Moth caterpillar that mimic a pit viper
January 2021 2 2
Caterpillars snake to deter predators.
, Question
Month Year Unit Question Theme Description of the Question
Number
Explaining the process of double
Double Fertilisation
January 2021 2 3 fertilisation in flowering plants and
in Flowering Plants
its genetic implications.
Investigating the effects of
Plant Nutrient
January 2021 2 5 magnesium ion concentration on
Deficiency
plant growth.
Conservation of Discussing human impacts on frog
January 2021 2 8 Sehuencas Water extinction, genetic diversity, and
Frogs the role of zoos in conservation.
Investigating the effect of minerals
Duckweed Growth on duckweed growth, controlling
January 2021 3 2
Investigation variables in the investigation,
measuring growth rate
Investigation of stigma extract
Pollen Tube Growth
January 2021 6 1 effect on the rate of pollen tube
in Water Hyacinth
growth in water hyacinth.
Planning an investigation on the
Effect of Abscisic influence of abscisic acid on
January 2021 6 4
Acid on Wheat amylase production in wheat
grains.
Structure and properties of starch,
Carbohydrates and
January 2022 1 1 disaccharides, and molecular mass
Plants
of gentiobiose
Drawing and labeling parts of a
January 2022 2 1 Plant Cell Structures
plant cell.
Plant Fibers and Discussing the properties of xylem
January 2022 2 2
Xylem vessels in plants.
Biodiversity and Conservation strategies for
January 2022 2 7
Conservation endangered plants.
Conservation Strategies for conserving the Hood
January 2022 2 9
Genetics Island tortoise.
Plant Fibers and Exploring the tensile strength of
January 2022 3 2
Tensile Strength hemp plant fibers.
Adaptations of polar bears to the
Arctic environment, including fat
storage, fur insulation, hunting
Polar Bear
January 2022 4 1 behavior, and impacts of habitat
Adaptations
fragmentation on genetic diversity.
, Question
Month Year Unit Question Theme Description of the Question
Number
The interaction between λ phage
Pathogen-Host and E. coli, illustrating the
January 2022 4 4
Evolutionary Race evolutionary race between host
cells and pathogens.
Experiment to measure the tensile
January 2022 6 1 Kenaf Plant Uses strength of fibers from Kenaf
plants.
Investigation of water required for
Snail Adaptation
January 2022 6 2 snails to break through shell
Study
membranes in different conditions.
Analysis of the impact of
Mayfly Nymphs and
January 2022 6 3 chlorpyrifos on mayfly nymph
Pollution
populations in different streams.
Questions about the structure of
Plant Anatomy and
June 2019 2 1 plant stems and the role of ions in
Ion Transport
plants.
Investigating the impact of
Effects of Herbicides
June 2019 2 2 herbicide concentration on insect
on Ecosystems
species in fields.
Questions about the structure and
Pancreas Function
June 2019 2 4 function of the pancreas, including
and Cell Study
electron microscope observations.
Questions about ironwood trees,
Ironwood Trees and
June 2019 2 5 their antibacterial properties, and
Bacterial Resistance
the plague bacteria Yersinia pestis.
Discussions about seed banks,
Seed Banks and genetic diversity in rice varieties,
June 2019 2 6
Genetic Diversity and the breeding of disease-
resistant bananas.
Questions about the reintroduction
Beaver
of beavers in Scotland and its
June 2019 2 8 Reintroduction and
impact on biodiversity, including
Biodiversity
genetic diversity calculations.
Questions on the structure and
function of various molecules found
June 2021 2 1 Plant Molecules
in plants, including carbohydrates
and proteins.
Exploring the concept of seed
Seed Banks and
banks, their methods, and the
June 2021 2 4 Sustainable
sustainability of plant-based
Resources
bioplastics.
, Question
Month Year Unit Question Theme Description of the Question
Number
Discussing human impact on
Biodiversity and biodiversity, including the effects of
June 2021 2 7
Human Impact non-endemic species and tourist
activities.
Investigating the relationship
Plant-Fungus between fungi and plants, and how
June 2021 2 8
Interactions this affects plant gene expression
and biodiversity.
Antimicrobial Investigating the antimicrobial
June 2021 3 1 Properties of Plant effects of various plant extracts on
Extracts different bacteria.
Exploring seed bank treatments and
Seed Banks and the concept of biodiversity,
June 2021 3 2
Biodiversity including seed aging and mitotic
index.
Plant Species in Investigation of mean number of
June 2021 4 1
Habitats plant species in different habitats.
Sand Dune Succession stages in sand dune
June 2021 4 7
Succession ecosystems.
Investigating the biomass produced
Biomass of
June 2021 6 2 by different varieties of switchgrass
Switchgrass
and its potential energy production.
Questions about the sustainability
Sustainability and of using plant products, specifically
June 2022 2 3
Plant Products calabash plants, and comparing
structures of phloem and xylem.
Questions about Indian and Chinese
Muntjac Species and muntjac, including chromosome
June 2022 2 4
Genetics differences, infertility in offspring,
and drawing stages of mitosis.
Questions about the evolution of
Hawaiian Hawaiian honeycreeper species,
June 2022 2 5 Honeycreeper including calculations and
Evolution explanations using genetic
concepts.
Questions regarding the impact of
wolf reintroduction on the
Impact of Predators
June 2022 2 8 biodiversity of Yellowstone National
on Biodiversity
Park, including changes in elk and
beaver populations.
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