DP Biology (first assessment 2025)

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Question 23M.1A.HL.TZ2.40

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.HL.TZ2.40
Level HL Paper 1A Time zone TZ2
Command term Question number 40 Adapted from N/A
40.
[Maximum mark: 1]
23M.1A.HL.TZ2.40

Which statement applies to the placenta?

A.  Carbon dioxide diffuses from fetus to mother across the placenta.

B.  Maternal and fetal blood mix at the placenta.

C.  If an ovum is not fertilized the placenta is lost during menstruation.

D.  The umbilical cord connects the placenta to the mother’s abdomen.

[1]

Markscheme

A

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