DP Biology (first assessment 2025)

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Question 21M.1A.HL.TZ2.40

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.HL.TZ2.40
Level HL Paper 1A Time zone TZ2
Command term Question number 40 Adapted from N/A
40.
[Maximum mark: 1]
21M.1A.HL.TZ2.40

What function is maintained as a result of the release of HCG?

A. Production of milk by the mammary glands

B. Release of oxytocin by the posterior pituitary gland

C. Production of FSH by the anterior pituitary gland

D. Production of progesterone by the ovary

[1]

Markscheme

D

Examiners report

Some G2 forms commented that the distinction between anterior and posterior pituitary gland appears only in the Options. However, the distinction between the anterior and posterior pituitary was not necessary to answer the question. In Section 6.5 (Hormones, homeostasis and reproduction), the candidates are required to understand that 'The menstrual cycle is controlled by negative and positive feedback mechanisms involving ovarian and pituitary hormones'. This should have been sufficient knowledge to answer the question correctly.

Syllabus sections