GCSEOCRJ257

OCR GCSE Biology B (Twenty First Century Science) — Higher (J257)

Explore the **Higher-tier Biology requirements** for OCR B (Twenty First Century Science), **J257**. Follow the course and tier confirmed by your school.

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

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B1.2How is genetic information inherited?

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

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B2.1What are the causes of disease?

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B2.2How do organisms protect themselves against pathogens?

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

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B2.4

B3.1What happens during photosynthesis?

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

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B3.3How are organisms in an ecosystem interdependent?

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B4.1What happens during cellular respiration?

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

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B4.3How do organisms grow and develop?

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

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

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

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B6.1How was the theory of evolution developed?

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

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

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IaS1What needs to be considered when investigating a phenomenon scientifically?

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IaS2What conclusions can we make from data?

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IaS3How are scientific explanations developed?

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