AQA GCSE Biology

What is the three-domain system developed by Carl Woese, and how does it categorize organisms into Archaea, Bacteria, and Eukaryota?

How has the Linnaean classification system evolved over time, and what role have improvements in microscopes and biochemical understanding played in this development?

How did Carl Linnaeus classify living organisms, and what is the significance of the binomial system in naming species?

What are the challenges associated with developing new antibiotics, and why might it be difficult to keep up with emerging resistant strains?

Why is it important for patients to complete their prescribed course of antibiotics, and how does this help prevent resistance?

What strategies can be used to reduce the development of antibiotic-resistant bacteria?

Why do resistant strains, like MRSA, pose a significant challenge to treatment, and how do they spread?

How do bacteria evolve quickly, and how do mutations contribute to the development of antibiotic-resistant strains?

What breakthroughs in the mid-20th century, such as the discovery of DNA’s structure, contributed to the development of the gene theory?

How did the observation of chromosomes and Mendel’s ‘units’ in the early 20th century lead to the understanding that genes are located on chromosomes?