Higher Tier Biology Paper 1H
(Merged Question Paper and Marking Scheme)
Please write clearly in block capitals. May 2024.
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GCSE H
COMBINED SCIENCE: TRILOGY
Higher Tier
Biology Paper 1H
Friday 10 May 2024 Morning Time allowed: 1 hour 15 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing.
4
• Fill in the boxes at the top of this page.
• Answer all questions in the spaces provided. 5
• If you need extra space for your answer(s), use the lined pages at the end of 6
this book. Write the question number against your answer(s).
7
• Do all rough work in this book. Cross through any work you do not want to be
marked. TOTAL
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 70.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation in your answers.
*JUN248464B1H01*
IB/M/Jun24/G4005/E7 8464/B/1H
,GCSE Combined Science: Trilogy Higher Tier Biology Paper 1H Summary
The GCSE Combined Science: Trilogy Higher Tier Biology Paper 1H, scheduled for May 2025,
will assess students' understanding of foundational and more advanced biological concepts. The exam
will cover a range of topics within biology, with an emphasis on applying scientific knowledge,
problem-solving, and evaluating biological processes. Key areas include:
1. Cell Biology:
o The structure and functions of animal and plant cells, including the role of organelles
(e.g., nucleus, mitochondria, chloroplasts).
o Differences between prokaryotic and eukaryotic cells.
o Cell division processes: mitosis (for growth and repair) and meiosis (for sexual
reproduction).
o The importance of stem cells in development and medicine.
2. Organisation:
o The structure and function of tissues, organs, and organ systems in animals and plants.
o Understanding the circulatory system, including the heart, blood vessels, and the process
of gas exchange in the lungs.
o The digestive system and how food is broken down and absorbed.
o The role of enzymes in digestion, including factors that affect enzyme activity (e.g.,
temperature, pH).
o The structure and function of plant tissues, such as xylem and phloem, and how they
facilitate the transport of water, nutrients, and sugars.
3. Infection and Response:
o The body's immune system and how it defends against pathogens (e.g., bacteria,
viruses).
o The role of white blood cells, antibodies, and antigens in immune response.
o Vaccination and the development of immunity.
o The causes, symptoms, and prevention of infectious diseases (e.g., bacterial infections,
viral infections).
o Antibiotic resistance and the importance of controlling the spread of infectious diseases.
4. Bioenergetics:
o Photosynthesis in plants: the process, the factors affecting the rate of photosynthesis, and
the role of chlorophyll.
o Cellular respiration: the differences between aerobic and anaerobic respiration, and their
importance in providing energy for cells.
o The role of respiration in metabolism and energy release.
o Practical applications of photosynthesis and respiration, including how they are
connected to plant growth and energy in ecosystems.
5. Homeostasis and Response:
o The concept of homeostasis and how organisms maintain a stable internal environment.
o The role of the nervous system and hormones in coordination and regulation.
o The structure and function of the brain and spinal cord.
o The role of hormones in controlling processes such as the menstrual cycle, blood glucose
levels, and stress responses.
6. Inheritance, Variation, and Evolution:
o The structure of DNA and its role in inheritance.
o The process of genetic inheritance, including dominant and recessive alleles, and
Punnett squares.
o The importance of genetic variation within populations and its role in evolution.
o The theory of natural selection and how it explains the process of evolution.
o The use of selective breeding in plants and animals.
7. Ecology:
o The study of ecosystems, including the interactions between organisms and their
environment.
o Food chains and food webs, and the flow of energy through an ecosystem.
o The cycling of materials in ecosystems (e.g., the carbon cycle, nitrogen cycle).
, tion, deforestation, and climate change.
o Conservation methods and strategies for maintaining biodiversity.
This paper will assess students' understanding of biological processes at a deeper level and test their
ability to apply this knowledge to novel scenarios. Students will need to demonstrate critical thinking
skills, an understanding of experimental methods, and the ability to interpret data related to biological
concepts. The exam will include a mix of multiple-choice, short-answer, and longer, more in-depth
questions, often requiring explanations, calculations, and evaluations.
, 2
Do not write
outside the
box
0 1 Drinks contain different substances.
A drinks company claims that a drink contains sugar, protein and fat.
0 1 . 1 Glucose and fructose are different sugars. Fructose
has a much sweeter taste than glucose.
Suggest two reasons why the drinks company uses fructose in the drink rather
than using glucose.
Do not refer to sweetness in your answer.
[2 marks]
1
2
0 1 . 2 Describe how a student could test the drink for sugar.
Give the colour of a positive result.
[3 marks]
Test
Colour of positive result
*02*
IB/M/Jun24/8464/B/1H