Investigating the effects of environmental pollution on plant growth and development: This essay could explore the ways in which pollution affects plants, including air and water pollution, and the impact on growth, photosynthesis, and other aspects of plant physiology. The research could include field studies, laboratory experiments, and analysis of current research on the topic.
Examining the role of genetics in cancer development: This essay could analyze the genetic factors that contribute to cancer, including inherited mutations and epigenetic changes. The research could involve case studies of specific types of cancer, genetic sequencing of cancer cells, and analysis of gene expression patterns in cancer cells.
Investigating the potential of stem cells for regenerative medicine: This essay could explore the various types of stem cells and their potential for repairing damaged tissues and organs. The research could include analysis of current clinical trials and experimental treatments, as well as ethical considerations surrounding the use of embryonic stem cells.
Analyzing the impact of climate change on biodiversity: This essay could examine the ways in which climate change is affecting ecosystems and biodiversity, including the loss of habitats, changes in migration patterns, and altered food webs. The research could involve field studies, analysis of long-term climate data, and modeling of future scenarios.
Investigating the effects of nutrition on brain development and function: This essay could explore the ways in which diet affects brain development and cognitive function, including the role of essential nutrients and the impact of unhealthy diets. The research could include animal studies, brain imaging studies, and analysis of current research on the topic.
Examining the mechanisms of antibiotic resistance in bacteria: This essay could analyze the ways in which bacteria develop resistance to antibiotics, including genetic mutations and the transfer of resistance genes. The research could involve laboratory studies, analysis of antibiotic use in healthcare and agriculture, and exploration of alternative treatments for bacterial infections.
Investigating the role of the human microbiome in health and disease: This essay could explore the ways in which the microbiome, including bacteria, viruses, and fungi, affects human health, including its role in digestion, immunity, and mental health. The research could include analysis of microbiome data from large-scale studies, animal studies, and clinical trials of microbiome-based therapies.
Analyzing the impact of human activities on ocean ecosystems: This essay could examine the ways in which human activities, including pollution, overfishing, and climate change, are affecting ocean ecosystems and endangering marine species. The research could involve analysis of oceanographic data, field studies of marine habitats, and exploration of policy solutions to protect ocean ecosystems.
Investigating the evolution of human language: This essay could explore the ways in which language evolved in the human species, including the genetic and neurological mechanisms underlying language acquisition and use. The research could involve analysis of language data from diverse human cultures, brain imaging studies, and comparisons with other species’ communication systems.
Examining the mechanisms of viral infections and the development of antiviral treatments: This essay could analyze the ways in which viruses infect host cells, including the mechanisms of viral replication and the host immune response. The research could involve laboratory studies of viral infections, analysis of clinical data on antiviral treatments, and exploration of novel approaches to developing antiviral therapies.The Biology Extended Essay is an opportunity for students to delve deeper into a specific aspect of the subject, exploring a research question or hypothesis of their own design. This essay should be based on reliable information and sources, and should be longer than 10000 characters. Here are some potential Biology Extended Essay questions and topics to consider:
Investigating the effects of different types of exercise on heart rate and blood pressure.
This topic could involve designing and conducting experiments to measure heart rate and blood pressure before and after different types of exercise, such as running, cycling, or weightlifting. The essay could explore the physiological mechanisms behind these effects, and could also consider the potential implications for health and fitness.
Investigating the role of genetics in determining personality traits.
This topic could involve researching the scientific literature on personality psychology and genetics, as well as conducting surveys or experiments to explore the relationship between genetic factors and personality traits. The essay could consider the ethical implications of genetic testing for personality traits, as well as the potential benefits and drawbacks of this type of research.
Investigating the impact of environmental factors on the development of allergies.
This topic could involve exploring the scientific literature on allergies and environmental factors, as well as conducting experiments or surveys to explore the relationship between environmental factors such as pollution, diet, and lifestyle, and the development of allergies. The essay could also consider the potential implications for public health and policy.
Investigating the role of epigenetics in cancer development.
This topic could involve researching the scientific literature on epigenetics and cancer, as well as conducting experiments or surveys to explore the relationship between epigenetic factors and cancer development. The essay could consider the potential implications for cancer prevention and treatment, as well as the ethical implications of epigenetic testing.
Investigating the effects of different types of music on cognitive performance.
This topic could involve designing and conducting experiments to measure cognitive performance, such as memory or attention, before and after listening to different types of music. The essay could explore the psychological mechanisms behind these effects, and could also consider the potential implications for education and productivity.
Investigating the relationship between gut microbiota and mental health.
This topic could involve researching the scientific literature on gut microbiota and mental health, as well as conducting experiments or surveys to explore the relationship between gut microbiota and mental health outcomes such as depression, anxiety, or stress. The essay could consider the potential implications for mental health treatment and prevention, as well as the ethical implications of microbiome testing.
Investigating the impact of climate change on biodiversity.
This topic could involve exploring the scientific literature on biodiversity and climate change, as well as conducting experiments or surveys to explore the relationship between climate change and biodiversity loss. The essay could consider the potential implications for ecological conservation and policy, as well as the ethical implications of climate change mitigation and adaptation.
Investigating the role of alternative medicine in cancer treatment.
This topic could involve researching the scientific literature on alternative medicine and cancer treatment, as well as conducting surveys or experiments to explore the use of alternative medicine among cancer patients. The essay could consider the potential benefits and drawbacks of alternative medicine for cancer treatment, as well as the ethical implications of alternative medicine research and treatment.
These are just a few potential topics for a Biology Extended Essay. The key to success in this type of project is to choose a question or topic that you are passionate about, and to conduct thorough research using reliable sources and methods. Good luck!Biology is a vast field of study that deals with the study of living organisms and their interactions with the environment. It encompasses a wide range of topics, including genetics, evolution, ecology, cell biology, physiology, and biochemistry. In this essay, we will explore some of the most interesting and thought-provoking biology extended essay questions.
How does the microbiome affect human health?
The human body is home to trillions of microorganisms, collectively known as the microbiome. Recent research has shown that the microbiome plays a crucial role in human health, influencing everything from digestion and metabolism to immune function and mental health. In this essay, you could explore the latest research on the microbiome and its impact on various health conditions, such as obesity, diabetes, and autoimmune disorders.
What are the ethical implications of gene editing technology?
Gene editing technology, such as CRISPR-Cas9, has revolutionized the field of genetics by allowing scientists to selectively edit DNA. While this technology holds great promise for treating genetic disorders and improving crop yields, it also raises important ethical questions about the morality of manipulating the genetic makeup of living organisms. In this essay, you could explore the ethical implications of gene editing technology and the different viewpoints surrounding its use.
How does climate change affect biodiversity?
Climate change is one of the most pressing issues facing our planet today, and it has significant implications for biodiversity. As temperatures rise and weather patterns become more erratic, many species are struggling to adapt to their changing environments. In this essay, you could examine the effects of climate change on various ecosystems and the potential consequences for global biodiversity.
What are the evolutionary origins of altruism?
Altruistic behavior, which involves helping others at a cost to oneself, is a fascinating topic in evolutionary biology. While it may seem counterintuitive from a Darwinian perspective, altruistic behavior has been observed in many species, from ants and bees to primates and humans. In this essay, you could explore the evolutionary origins of altruism and the various theories put forth to explain this seemingly paradoxical phenomenon.
How do different types of nutrients affect plant growth?
Plants require a variety of nutrients to grow and thrive, including nitrogen, phosphorus, and potassium. However, the optimal ratio of these nutrients varies depending on the plant species and the environmental conditions. In this essay, you could investigate the effects of different types of nutrients on plant growth and the mechanisms through which they influence plant physiology.
What is the role of epigenetics in disease?
Epigenetics refers to the study of changes in gene expression that occur without altering the DNA sequence, such as modifications to DNA methylation or histone acetylation. These changes can have significant implications for health and disease, as they can influence the expression of genes involved in everything from cancer development to immune function. In this essay, you could explore the role of epigenetics in various diseases and the potential for epigenetic therapies to treat these conditions.
How do animals use mimicry and camouflage to survive?
Mimicry and camouflage are common strategies used by animals to avoid predation and increase their chances of survival. In this essay, you could examine the different types of mimicry and camouflage used by various animal species and the evolutionary advantages of these strategies.
What are the environmental factors that influence sex determination in reptiles?
Unlike mammals, which have a genetic sex determination system, many reptiles have temperature-dependent sex determination (TSD), where the temperature at which the eggs are incubated determines the sex of the offspring. However, the exact mechanisms underlying TSD and the environmental factors that influence sex determination in reptiles are still poorly understood. In this essay, you could explore the latest research on TSD and the environmental factors that affect sex determination in reptiles.
In conclusion, biology is a fascinating and rapidly evolving field of study that offers many exciting research opportunities. These extended essay questions provide a starting point for exploring some of the most interesting and thought-provoking topics in biology, and could inspire students to pursue their own research in this field.