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IGCSE · Cambridge (CIE) · 0973

Match ovaries and testes with their required hormones

Connect pelvic ovaries with oestrogen and scrotal testes with testosterone.

Hormones · Cambridge IGCSE 0973 · B13.2
Exam scope and assessment notes

Mapped to the named 0973 section using teaching from the corresponding single-science course. A 0973-specific review of every Core and Supplement objective is still in progress. Written practice is self-checked; it does not demonstrate supervised laboratory competence or award an official Cambridge grade. This qualification reports two grades on the 9–1 scale; confirm the entry route for your zone and exam series.

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.

Hormones model reference
FeatureMeaning
OvariesWithin pelvis → oestrogen
TestesWithin scrotum → testosterone
GonadsCollective anatomical term, not a hormone
Source readingUse 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.

Sources for this lesson

Pause and explain

How should Gonads (Testes) be answered in this identification task?

Put the idea to work

Worked example

Match C and D with their gland and hormone names.

Show the worked solution
  1. C marks ovaries: oestrogen.
  2. 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.

1 · Guided

Give both required gonad–hormone pairs.

Give me a hint

Use gland names as sources, chemicals as hormones.

Compare my reasoning
  1. Ovaries secrete oestrogen.
  2. Testes secrete testosterone.

Ovaries–oestrogen; testes–testosterone.

Look for these in your work

  • State both gland names
  • Match both hormones
2 · Independent

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
  1. C ovaries within pelvis: oestrogen.
  2. D testes within scrotum: testosterone.

C: ovaries, oestrogen. D: testes, testosterone.

Look for these in your work

  • Use both locations
  • Supply both hormone names
3 · Transfer

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
  1. The specified gonads are ovaries.
  2. 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.
Recall without your notes

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.

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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.

Keep learning Sciences — Co-ordinated (9-1)

Course scope and assessment

This 9–1 pathway maps all 152 detailed subject-content sections in the published 0973 syllabus for exams in 2028 and 2029. The course map follows the same 2028–2029 section codes as Cambridge's A*–G 0654 syllabus, while keeping 0973's grading and entry rules separate. It adapts lessons from the related single-science courses and excludes clear single-science-only topics. A 0973-specific objective-by-objective review, Core/Supplement audit, human subject-teacher review, supervised laboratory experience and cumulative assessment remain in progress. Written practice is self-checked and does not predict an official grade. The separate 2025–2027 syllabus has not been reconciled here. Cambridge lists 0973 only in a limited number of administrative zones: June in zone 3 and centres in Oman and the UAE; November in zone 3 only. Confirm entry with your centre.

StudyForA · Learn with understanding

Original teaching content and links to official sources. Check your exam year and qualification before using a resource.