Learning objective

Describe the functions of various blood components: (a) red blood cells for oxygen transport, highlighting the role of haemoglobin; (b) white blood cells for phagocytosis and antibody production; (c) platelets for clotting (detailed information is not necessary); (d) plasma for transporting blood cells, ions, nutrients, urea, hormones, and carbon dioxide.

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Exam focus

Cambridge IGCSE Combined ScienceTransport in animalsCore content

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Quick explanation

This point belongs to Blood, especially Blood outcomes.
You need to be able to describe the functions of various blood components: (a) red blood cells for oxygen transport, highlighting the role of haemoglobin; (b) white blood cells for phagocytosis and antibody production; (c) platelets for clotting (detailed information is not necessary); (d) plasma for transporting blood cells, ions, nutrients, urea, hormones, and carbon dioxide.
The key ideas to know are State.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

State

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This objective helps connect Blood outcomes to exam-style questions, flashcards, and revision notes for Blood.

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Paper 3Theory (Core)2 marks

Description

Blood is made up of red blood cells, white blood cells, platelets, and plasma. Each component has a specific function in the body.

a
Describe the function of red blood cells and the role of haemoglobin.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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