Browse free OCR GCSE Biology B (Twenty First Century Science) — Higher (J257) Flashcards by topic and specification point. Choose an area of the syllabus to start practising active recall with cards aligned to the OCR course.

You and your genes

B1.1What is the genome and what does it do?View flashcards

B1.2How is genetic information inherited?View flashcards

B1.3How can and should gene technology be used?View flashcards

Keeping healthy

B2.1What are the causes of disease?View flashcards

B2.2How do organisms protect themselves against pathogens?View flashcards

B2.3How can we prevent the spread of infections?View flashcards

B2.4How can we identify the cause of an infection? (separate science only)View flashcards

B2.5How can lifestyle, genes and the environment affect health?View flashcards

B2.6How can we treat disease?View flashcards

Living together – food and ecosystems

B3.1What happens during photosynthesis?View flashcards

B3.2How do producers get the substances they need?View flashcards

B3.3How are organisms in an ecosystem interdependent?View flashcards

B3.4How are populations affected by conditions in an ecosystem?View flashcards

Using food and controlling growth

B4.1What happens during cellular respiration?View flashcards

B4.2How do we know about mitochondria and other cell structures?View flashcards

B4.3How do organisms grow and develop?View flashcards

B4.4How is plant growth controlled? (separate science only)View flashcards

B4.5Should we use stem cells to treat damage and disease?View flashcards

The human body – staying alive

B5.1How do substances get into, out of and around our bodies?View flashcards

B5.2How does the nervous system help us respond to changes?View flashcards

B5.3How do hormones control responses in the human body?View flashcards

B5.4Why do we need to maintain a constant internal environment?View flashcards

B5.5What role do hormones play in human reproduction?View flashcards

B5.6What can happen when organs and control systems stop working?View flashcards

Life on Earth – past, present and future

B6.1How was the theory of evolution developed?View flashcards

B6.2How do sexual and asexual reproduction affect evolution? (separate science only)View flashcards

B6.3How does our understanding of biology help us classify the diversity of organisms on Earth?View flashcards

B6.4How is biodiversity threatened and how can we protect it?View flashcards

Ideas about Science

IaS1What needs to be considered when investigating a phenomenon scientifically?View flashcards

IaS2What conclusions can we make from data?View flashcards

IaS3How are scientific explanations developed?View flashcards

IaS4How do science and technology impact society?View flashcards