Match ovaries and testes with their required hormones
Connect pelvic ovaries with oestrogen and scrotal testes with testosterone.
Exam scope and assessment notes
Core and Extended · Biology 0970, 2026–2028. Use the stated specimen features and evidence. Diagrams are schematic. Written practice is self-checked; human subject-teacher review, supervised practical competence and cumulative assessment remain pending. Cambridge states that IGCSE 0970 has the same subject content as IGCSE 0610, with 9–1 grading. This StudyForA pathway maps the 2026–2028 syllabus only. This 9–1 graded qualification is available only in a limited number of administrative zones. Confirm that your centre can enter you for this code and exam series with Cambridge International. Cambridge has published a separate syllabus for 2029. StudyForA has not reconciled that version yet; this page supports exams in 2026, 2027 and 2028 only.
Before you begin
- Recall electrical impulses, blood transport, gland secretion and the distinction between a stimulus and a body response.
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
Which required hormone is paired with ovaries?
What you will learn
- Identify the two gonadal sources
- Keep anatomical names and hormone names separate
Match ovaries and testes with their required hormones
Gonads are organs. Ovaries within the pelvis pair with oestrogen; testes in the scrotum pair with testosterone. Original teaching model.
| Feature | Meaning |
|---|---|
| Ovaries | Within pelvis → oestrogen |
| Testes | Within scrotum → testosterone |
| Gonads | Collective anatomical term, not a hormone |
| Source reading | Use the bracketed gland and actual leader endpoint |
Identify the two gonadal sources
Ovaries and testes are gonads: reproductive organs that also produce hormones. Ovaries are paired structures within the pelvis, and testes are paired structures in the scrotum below the pelvis. Published diagrams may use Gonads (Ovaries) or Gonads (Testes); the word in brackets identifies which gonads the source actually shows.
The required Core pairings are ovaries–oestrogen and testes–testosterone. Oestrogen and testosterone are chemical hormone names, whereas ovaries and testes are gland names. A question requesting a gland and its hormone needs both, and the gland must match the actual source endpoint rather than a guess based on a picture title alone.
Keep anatomical names and hormone names separate
In the original ovarian model, C ends at an ovary within the pelvis; in the testicular model, D ends at a testis in the scrotum. The two models depict alternative anatomical arrangements separately. Hormone identification is the learning task here; the drawing is not a way of assigning a personal identity or measuring an individual hormone level.
If an unfamiliar source labels a paired pelvic organ and states it is an ovary, give oestrogen as the required hormone. If it labels a scrotal testis, give testosterone. Complete the full four-gland recall by adding adrenal glands–adrenaline and pancreas–insulin. The reproductive functions of these hormones are explored separately later in the course.
Pause and explain
How should Gonads (Testes) be answered in this identification task?
Worked example
Match C and D with their gland and hormone names.
Show the worked solution
- C marks ovaries: oestrogen.
- D marks testes: testosterone.
Answer C ovaries–oestrogen; D testes–testosterone.
Try a topic test
Choose Easy, Normal or Difficult. Save your answers and open worked review after finishing.
Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
Give both required gonad–hormone pairs.
Give me a hint
Use gland names as sources, chemicals as hormones.
Compare my reasoning
- Ovaries secrete oestrogen.
- Testes secrete testosterone.
Ovaries–oestrogen; testes–testosterone.
Look for these in your work
- State both gland names
- Match both hormones
Identify C within the pelvis and D within the scrotum in the separate original models, with their hormones.
Give me a hint
Use their actual endpoints.
Compare my reasoning
- C ovaries within pelvis: oestrogen.
- D testes within scrotum: testosterone.
C: ovaries, oestrogen. D: testes, testosterone.
Look for these in your work
- Use both locations
- Supply both hormone names
A source labels Gonads (Ovaries), but an answer gives gonads–testosterone. Improve it for a gland-and-hormone question.
Give me a hint
Read the bracketed source label.
Compare my reasoning
- The specified gonads are ovaries.
- The required hormone is oestrogen, not testosterone.
Ovaries–oestrogen. Gonads alone is less specific than the printed source, and testosterone belongs to the required testes pairing.
Look for these in your work
- Use the exact anatomical target
- Correct the hormone pairing
Common mistakes
- Treating Gonads as a hormone name.
- Swapping oestrogen and testosterone.
What can you explain now?
How should Gonads (Testes) be answered in this identification task?
Compare with the explanation
Testes secrete testosterone
The bracketed label specifies the gland.
After trying it yourself, choose your next review. This is your self-assessment.
Your review choice appears on Today. Sign in to sync it across devices.
Make it stick
Match each gonadal source and hormone without swapping names.
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.