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Edexcel, specification 4SD0

Edexcel International GCSE Science (Double Award)

Edexcel International GCSE Science (Double Award) (4SD0) is worth two International GCSEs and tests biology in one paper: Biology Paper 1 (2 hours, 110 marks). Here are all 5 topics and 9 practicals, with free revision notes, exam questions with mark schemes, flashcards and mind maps. Biology-only content is left out for you.

Topics

Biology Paper 1

2 hours · 110 marks · every topic
  1. 1The nature and variety of living organismsCharacteristics and variety of living organisms1 subtopic
  2. 2Structure and functions in living organismsCells and levels of organisation · Biological molecules and enzymes · Movement of substances into and out of cells · Nutrition in flowering plants · Human nutrition · Respiration · Gas exchange in flowering plants · Gas exchange in humans · The need for transport and transport in plants · Blood and the immune system · The heart and circulation · Excretion · Coordination, homeostasis and plant responses · The nervous system and the eye · Hormones and temperature control15 subtopics
  3. 3Reproduction and inheritanceSexual and asexual reproduction, and reproduction in plants · Human reproduction · DNA, genes and protein synthesis · Inheritance · Cell division, variation and evolution5 subtopics
  4. 4Ecology and the environmentThe organism in the environment · Feeding relationships · Cycles within ecosystems · Human influences on the environment4 subtopics
  5. 5Use of biological resourcesFood production: crop plants · Food production: micro-organisms and fish farming · Selective breeding and genetic modification3 subtopics

What the labels mean

Biology only
Only in International GCSE Biology. Double Award students can skip it.

Anything without a label is for everyone taking Edexcel International GCSE Science (Double Award).

About Edexcel International GCSE Science (Double Award)

Pearson Edexcel International GCSE Science (Double Award) (4SD0) covers biology, chemistry and physics and is worth two International GCSEs, graded 9-9 to 1-1. The biology part is the International GCSE Biology content without the Biology only statements, so anything labelled Biology only on this site can be skipped. Biology is one of the three papers: the same Biology Paper 1 that International GCSE Biology students sit.

Biology Paper 1

Time
2 hours
Marks
110 marks, 33.3% of the qualification
Topics
All five topics, without the Biology only content