Topic study hub
Global challenges
Revision and exam practice for Global challenges.
25
Objectives
10
Flashcards
10
Questions
90 min
Study time
OcrGcseCombined Science A GatewayGlobal challenges
Choose a revision tool
Start revising Global challenges
Syllabus checklist
What you need to know
25 objective pages available
Field Investigation: Distribution and Abundance of Organisms1 objectives
- Account for the way to carry out a field investigation into the distribution and abundance of organisms in a habitat and how to determine their numbers in a given area.
Human Interactions with Ecosystems and Biodiversity1 objectives
- Communicate the key features of both positive and negative human interactions within ecosystems and explain their impact on biodiversity.
Benefits and Challenges of Maintaining Biodiversity1 objectives
- Account for some of the benefits and challenges of maintaining local and global biodiversity.
The Impact of Selective Breeding on Food Plants and Domesticated Animals1 objectives
- Account for the impact of the selective breeding of food plants and domesticated animals.
Understanding Genetic Engineering1 objectives
- Communicate the key features of genetic engineering as a process which involves modifying the genome of an organism to introduce desirable characteristics.
Understanding Genetic Engineering: Key Steps1 objectives
- Communicate the key features of the main steps in the process of genetic engineering.
Benefits and Risks of Gene Technology in Modern Agriculture1 objectives
- Account for some of the possible benefits and risks of using gene technology in modern agriculture.
Understanding Health and Disease: A Complex Relationship1 objectives
- Communicate the key features of the relationship between health and disease.
Understanding Different Types of Diseases1 objectives
- Communicate the key features of different types of diseases.
Interactions Between Different Disease Types1 objectives
- Communicate the key features of the interactions between different types of disease.
Spread of Communicable Diseases in Animals and Plants1 objectives
- Account for the way communicable diseases (caused by viruses, bacteria, protists and fungi) are spread in animals and plants.
Reducing and Preventing Communicable Diseases in Animals and Plants1 objectives
- Account for the way the spread of communicable diseases may be reduced or prevented in animals and plants.
Understanding Common Infections, Plant Diseases, and STIs1 objectives
- Communicate the key features of a minimum of one common human infection, one plant disease and sexually transmitted infections in humans including HIV/AIDS.
Adaptations of White Blood Cells and Platelets for Defence1 objectives
- Account for the way white blood cells and platelets are adapted to their defence functions in the blood.
The Body's Non-Specific Defences Against Pathogens1 objectives
- Communicate the key features of the non-specific defence systems of the human body against pathogens.
The Immune System: Our Body's Defence Against Disease1 objectives
- Account for the role of the immune system of the human body in defence against disease.
Understanding Vaccines and Medicines in Disease Management1 objectives
- Account for the use of vaccines and medicines in the prevention and treatment of disease.
Discovery and Development of New Medicines1 objectives
- Communicate the key features of the processes of discovery and development of potential new medicines.
Understanding Multifactorial Non-Communicable Diseases1 objectives
- Retrieve and apply knowledge of many non-communicable human diseases are caused by the interaction of a number of factors.
Evaluating Treatments for Cardiovascular Disease (CVD)1 objectives
- Judge using evidence some different treatments for cardiovascular disease.
Lifestyle Factors and Non-Communicable Diseases1 objectives
- Interpret evidence about the effect of lifestyle factors on the incidence of non-communicable diseases at local, national and global levels.
Understanding Cancer: Uncontrolled Cell Growth1 objectives
- Communicate the key features of cancer as the result of changes in cells that lead to uncontrolled growth and division.
Stem Cells in Medicine: Benefits and Risks1 objectives
- Consider evidence about and reach a balanced conclusion on potential benefits and risks associated with the use of stem cells in medicine.
Benefits and Risks of Gene Technology in Medicine1 objectives
- Account for some of the possible benefits and risks of using gene technology in medicine.
The Human Genome and its Importance in Medicine1 objectives
- Consider evidence about and reach a balanced conclusion on the potential importance for medicine of our increasing understanding of the human genome.
Key terms
No key terms are published for this topic yet.
Exam tips
No exam tips are published for this topic yet.
Common mistakes
No common mistakes are published for this topic yet.
Practice preview
- Which of the following describes a plasmid?
- Explain how an infectious disease can interact with and contribute to the development of a non-communicable disease (NCD). Give a named example. [4 marks]
- Explain how two different negative human interactions can lead to a decrease in biodiversity. You should provide specific examples for each interaction. [4 marks]
Continue by objective
Objectives are grouped by subtopic so students can jump straight to the exact skill they want to revise.
Related topics