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IB Biology HL 3.1.13 Puberty control Question Bank

Practise IB Biology HL 3.1.13 by applying puberty control concepts to exam-style questions.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • identify the relevant biological structure, process or evidence
  • apply the correct biological mechanism to the question
  • evaluate the result using data, adaptation or ecological reasoning

D3.1.13 (HL)—Puberty control question 1

[Maximum number: 1]

What controls the developmental changes during puberty?

I. Increased release of gonadotropin-releasing hormone (GnRH) by the hypothalamus
II. Luteinizing hormone (LH) leading to increased sex hormone production
III. Gonadotropin-releasing hormone (GnRH) triggering the onset of increased luteinizing hormone (LH)

A

I and II only

B

I and III only

C

II and III only

D

I, II and III

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