Grade 11 · Life Sciences · Paper 1 · CAPS
Gaseous Exchange – Grade 11 Life Sciences (Paper 1)
What Gaseous Exchange covers, how it is examined in Grade 11, the 5 sections to study and how long it takes – plus live online lessons when you get stuck.
- Study sections
- 5
- Exam-style questions
- 9
- Marks of practice
- 85
- Study time
- ≈ 4 h 30 min
What it covers
Gaseous Exchange is a Grade 11 Life Sciences topic in the CAPS curriculum, examined in Life Sciences Paper 1 of the Grade 11 school and provincial exams. You study it in 5 sections: Breathing, gaseous exchange and gas exchange surfaces; The human ventilation system and the alveolus; The breathing mechanism: inhalation and exhalation; Gas exchange in the lungs and tissues, and transport of gases; Control of the breathing rate and respiratory diseases.
How it is examined
- Paper
- Grade 11 Life Sciences Paper 1
- Exams
- June and November school or provincial exams – your school sets the papers and the dates
- Weighting
- Gaseous exchange ≈ 32/150 in Paper 1
There is no national Grade 11 exam. Your school’s exam guideline says which topics each paper covers.
Sections to study
- Breathing, gaseous exchange and gas exchange surfaces25 min
- The human ventilation system and the alveolus35 min
- The breathing mechanism: inhalation and exhalation30 min
- Gas exchange in the lungs and tissues, and transport of gases30 min
- Control of the breathing rate and respiratory diseases40 min
Study time
| Notes and worked examples5 sections | 2 h 40 min |
|---|---|
| Exam-style questions9 questions · 85 marks × 1,2 min per mark | 1 h 40 min |
| Topic quiz | 10 min |
| Total | ≈ 4 h 30 min |
Grade 11 exams are set by your school or province – plan back from the date your school gives you.
What you get in the portal
- 9 exam-style questions on Gaseous Exchange (85 marks in total), each with a full marking memo
- Worked exam-style answers, point by point, with labelled diagrams for each of the 5 sections
- Tutor notes added to sections and questions – for the whole class or just for you
- A topic quiz and Grade 11 mock papers built from the exam-style questions
Notes, worked examples, questions and memos open once the tutor approves your account – usually with your first confirmed lesson.
Stuck on Gaseous Exchange? Book a one-on-one lesson.
R250 per hour – 60, 90 or 120 minutes, online from anywhere in South Africa. Pick Gaseous Exchange as your topic; you pay by EFT only after the tutor confirms.
Related Grade 11 Life Sciences P1 topics
Questions about Gaseous Exchange
How is Gaseous Exchange examined in Grade 11?
Grade 11 learners write Life Sciences exams set by their school or province, in June and November. Gaseous Exchange is part of Life Sciences Paper 1; the usual weighting is: Gaseous exchange ≈ 32/150 in Paper 1. Your school’s exam guideline confirms which topics each exam covers.
How long does it take to study Gaseous Exchange?
About 4 h 30 min: 2 h 40 min for the notes and worked examples in its 5 sections, 1 h 40 min for the 9 exam-style questions (85 marks) at 1,2 minutes per mark, and a 10-minute quiz.
Can I get online lessons for Grade 11 Gaseous Exchange?
Yes. Create a free account in the Adventuity portal, request a one-on-one online lesson of 60, 90 or 120 minutes (or a seat in a group class) and choose Gaseous Exchange as your topic. You pay by EFT only after the tutor confirms the booking.