Grade 12 · Life Sciences · Paper 1 · CAPS
Homeostasis in Humans – Grade 12 Life Sciences (Paper 1)
What Homeostasis in Humans covers, how it is examined in Life Sciences Paper 1, the 4 sections to study and how long it takes – plus live online lessons when you get stuck.
- Study sections
- 4
- Exam-style questions
- 9
- Marks of practice
- 85
- Study time
- ≈ 3 h 55 min
What it covers
Homeostasis in Humans is a Grade 12 Life Sciences topic in the CAPS curriculum, examined in Life Sciences Paper 1 of the NSC exams. You study it in 4 sections: Homeostasis, negative feedback and blood glucose; diabetes mellitus; Water and salt balance: ADH and aldosterone; Regulation of the carbon dioxide level; Thermoregulation.
How it is examined
- Paper
- Life Sciences Paper 1 – Friday 13 November 2026, 09:00 (2½ hours, 150 marks)
- Weighting
- Endocrine system and homeostasis ≈ 34/150 in Paper 1 (23%, DBE Examination Guidelines 2021)
Mark splits are typical, not fixed – they vary a little from year to year.
Sections to study
- Homeostasis, negative feedback and blood glucose; diabetes mellitus40 min
- Water and salt balance: ADH and aldosterone35 min
- Regulation of the carbon dioxide level20 min
- Thermoregulation30 min
Study time
| Notes and worked examples4 sections | 2 h 05 min |
|---|---|
| Exam-style questions9 questions · 85 marks × 1,2 min per mark | 1 h 40 min |
| Topic quiz | 10 min |
| Total | ≈ 3 h 55 min |
Life Sciences Paper 1 is written on Friday 13 November 2026 at 09:00.
What you get in the portal
- 9 exam-style questions on Homeostasis in Humans (85 marks in total), each with a full marking memo
- Worked exam-style answers, point by point, with labelled diagrams for each of the 4 sections
- Tutor notes added to sections and questions – for the whole class or just for you
- A topic quiz, mock papers and a study plan that counts down to Life Sciences Paper 1
Notes, worked examples, questions and memos open once the tutor approves your account – usually with your first confirmed lesson.
Stuck on Homeostasis in Humans? Book a one-on-one lesson.
R250 per hour – 60, 90 or 120 minutes, online from anywhere in South Africa. Pick Homeostasis in Humans as your topic; you pay by EFT only after the tutor confirms.
Related Life Sciences P1 topics
Questions about Homeostasis in Humans
How many marks is Homeostasis in Humans worth in the matric exam?
In Life Sciences Paper 1 (2½ hours, 150 marks) the usual weighting is: Endocrine system and homeostasis ≈ 34/150 in Paper 1 (23%, DBE Examination Guidelines 2021). The exact marks change a little from year to year.
How long does it take to study Homeostasis in Humans?
About 3 h 55 min: 2 h 05 min for the notes and worked examples in its 4 sections, 1 h 40 min for the 9 exam-style questions (85 marks) at 1,2 minutes per mark, and a 10-minute quiz.
When is the Life Sciences Paper 1 exam in 2026?
Life Sciences Paper 1 is written on Friday 13 November 2026 at 09:00 and lasts 2½ hours (150 marks), according to the DBE’s 2026 NSC timetable. Confirm the date with your school, because the DBE can amend the timetable.
Can I get online lessons for Homeostasis in Humans?
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 Homeostasis in Humans as your topic. You pay by EFT only after the tutor confirms the booking.