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Biology International GCSEs

Pearson Edexcel

IGCSE Biology

Curious about our natural world? Study IGCSE Biology online and start to unravel some of nature’s most fascinating secrets.


Multi-buy GCSEs:

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From the tiniest microscopic cell to vast, complex ecosystems – studying biology enables you to explore and understand life on Earth, in all its forms.

By exploring our natural world, you’ll begin to consider some of the big challenges we face. From preventing and curing disease to sustaining a healthy planet for future generations, biologists have a crucial role to play!

Supported by an expert personal tutor, you’ll explore topics using our online resources and through practical experiments you can do at home. As you progress, key connections that exist in our natural world will be revealed and you’ll consider the impact biology has on our everyday lives.

Why study Biology?

What is DNA? How do plants reproduce? How does the human heart work? How are humans impacting biodiversity? Through our IGCSE Biology online course you’ll build knowledge of key biological concepts and put theory into practice using 11 core practicals which are suitable for home study.

Studying IGCSE Biology online opens up exciting future choices. Perhaps you’ll continue to study this fascinating subject at A level and beyond – gaining the qualifications you need to secure your dream career?

Our Biology IGCSE course is ideal if you:

  • Are keen to learn more about how plants, animals and bacteria function.
  • Appreciate nature and want to learn more about life on planet Earth.
  • Enjoy working scientifically: making predictions, testing theories and evaluating and communicating your findings.
  • Would like to build your observational, investigative and problem-solving skills, to improve your employability.
  • Have career aspirations in health, STEM or conservation related fields.

Future opportunities

  • Studying biology or STEM subjects at A level or university.
  • A range of rewarding careers in fields such as medicine, physiotherapy, nursing, veterinary science, zoology, microbiology, marine biology, pharmacology, forensic science, ecology, conservation and education.

Course content

Section 1: The nature and variety of living things

  • Characteristics of living things
  • Animals and plants
  • Fungi and protoctists
  • Bacteria and viruses

Section 2: Structure in living organisms

  • From cells to systems
  • Cell structure
  • Biological molecules
  • Enzymes
  • Movement of substances

Section 3: Nutrition, respiration and gas exchange

  • Plant nutrition and growth
  • Food and diet
  • The digestive system and digestion
  • Respiration
  • Gas exchange

Section 4: Transport in living things

  • The need for transport systems
  • Moving food and water in plants
  • Blood and immunity
  • The heart and circulation

Section 5: Excretion

  • Excretion in plants
  • The organs of excretion in animals
  • The urinary system

Section 6: Coordination and response

  • Responding to the environment
  • Response to stimuli in plants
  • The nervous system
  • Homeostasis and temperature regulation
  • Hormones

Section 7: Reproduction

  • Reproduction in plants
  • Reproduction in humans
  • Roles of hormones in reproduction and development

Section 8: Inheritance

  • Chromosomes and DNA
  • Protein synthesis
  • Genetic variation and evolution
  • Monohybrid inheritance
  • Mitosis and meiosis

Section 9: Ecology and the environment

  • Organisms in the environment
  • Feeding relationships
  • Cycles within ecosystems
  • Human influence on the environment

Section 10: Using biological resources

  • Crop plants
  • Micro-organisms in food production
  • Fish farming
  • Selective breeding
  • Genetic modification and cloning

Study IGCSE Biology with us and benefit from:

  • Flexible learning
  • Support from a personal tutor by email, phone or Skype
  • Any time enrolment
  • Our exam booking service
  • Assignments with tutor feedback
  • Ongoing support from Student Support
  • Forums to discuss your course with other students


Choose when and where you access your course, using learn@nec our 24/7 learning platform.

This easy-to-use learning platform includes interactive checkpoints, quizzes and activities to help you evaluate your progress.

Your tutor

You’ll have access to support from a personal tutor. All NEC tutors are subject experts, with experience of supporting online learners.

Meet Usha who is just one of our first-class biology tutors:

“I have always loved learning about living organisms so Biology is the perfect subject for me. I hope to share my enthusiasm for the subject with my students. The A level Biology course is very broad and gives a real flavour of so many aspects of Biology. It provides a fantastic foundation for future studies whether they are biology based or something different.”

What you need to know

Exam board

  • Edexcel 4BI1


  • Online learning with support from a personal tutor


  • Complete at your own pace
  • Approx. 120-150*  hours plus time for completing assignments

*The specification suggests that 150 hours is needed. You’ll also need time to complete assignments and prepare yourself for exams and some courses like English literature involve a lot of reading. Everyone is different so it’s impossible to say with certainty how long a course will take you, but you should expect to spend longer than 150 hours. Taken across the length of time we recommend, this equates to approximately 4 hours per week. This will increase if you choose to take it over a shorter time frame or may be less if you are retaking a subject and have covered a lot of of the course content.


  • 11 assignments (one introductory) – these do not contribute towards your final grade
  • 14 core practicals


  • No additional set texts required


  • Internet access
  • Computer operating system and browser to support learn@nec

What's included?

Our course fees are clear and transparent to help you plan for any additional costs.

Your course fee includes:

  • 24/7 access to learn@nec platform and resources
  • Expertly designed online course materials (including ebook versions of textbooks where specified) that you need to complete the course and written to cover the carefully selected awarding body specification
  • Support from our Student Services team
  • Structured assignments to help you track your progress throughout your course
  • Guidance from your tutor for up to 18 months from your date of enrolment
  • Constructive feedback on your assignments from your tutor, to help you improve and prepare for exams
  • Guaranteed exam place
  • NEC’s guide to study skills: How to Succeed as an Independent Learner
  • Spelling, punctuation and grammar guide
  • Time planner template to help you plan your study timetable
  • Information on how to apply for exams

Your course fee does not cover:

  • Any fees in relation to exam entries or assessments
  • Centre Assessment Grades (CAG) in the event of exam cancellation
  • Recommended textbooks for additional reading or set texts
  • Equipment for core practicals

If you need more support, you can purchase:

  • Online tutorials – if you need help with a specific topic you can arrange a 30 minute or 1 hour tutorial
  • Additional past paper marking – to help with your exam preparation
  • Revision tutorial –  to plan your revision and explore revision techniques
  • Help with your UCAS application service

For further information on additional/optional support you can purchase, please visit our additional services page.

Related blog posts

Exams and assessment

Exams (two):

  • 61% of marks  (2 hours)
  • 39% of marks (1 hour 15 minutes)

There is no non-exam assessment (NEA) for this course

Additional support if you’re under 18

We know that our younger students often need an extra helping hand with their studies. In our experience learning online works best when either a parent or guardian are involved. This is why NEC has developed our unique Progress Tracker to help you to support your child.

NEC’s Progress Tracker will allow you to easily track your child’s progress across their subjects and gain insight to how well they are doing through access to their assignment grades and tutor feedback.  

Read more about how we work with young students who are studying at home or through a school.

Arrange a callback with a member of our Course Advice Team.

Would you like to talk to our Course Advice Team about the best route for you? Visit our Contact Us page, fill in the form and a member of the team will get back to you!