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Cambridge IGCSE Biology practice

Paper 3 structured question: Sexual reproduction in humans

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3

Paper

2

Marks

Topic

Sexual reproduction in humans

Exam-style question

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Paper 3Theory (Core)2 marks

The placenta plays a vital role in supporting the fetus during pregnancy.

Description

Placenta function

The placenta attaches to the uterus wall and connects to the fetus via the umbilical cord. It allows exchange of oxygen, nutrients, and waste products between mother and fetus without mixing their blood.

  1. a

    Identify the organ that connects the fetus to the placenta.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    State one function of the placenta in fetal development.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Sexual reproduction in humans

Paper 3Theory (Core)2 marks

Diagram Description

Diagram of fetal support structures

A diagram shows a fetus connected to the placenta by the umbilical cord, surrounded by the amniotic sac filled with amniotic fluid.

  1. a

    Identify the structure that connects the fetus to the placenta.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    State one role of the amniotic fluid in fetal development.

    Aim for approximately 1 distinct marking point.

    [1]