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Cambridge IGCSE Biology practice

Paper 3 structured question: Sexual reproduction in humans

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Attempt questionSexual reproduction in humans revisionRevise the key idea

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Sexual reproduction in humans

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Paper 3Theory (Core)1 marks

Egg cells have special features that help in fertilization and early development.

Description

Features of Egg Cells

Egg cells contain energy reserves and are surrounded by a jelly coat that changes after fertilization.

  1. a

    State one specialized feature of egg cells related to energy.

    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

Description

Jelly Coat Function

The jelly coat surrounding the egg cell changes after fertilization to prevent multiple sperm from entering.

  1. a

    Explain why the jelly coat changes after fertilization.

    Aim for approximately 2 distinct marking points.

    [2]