Learning objective

Explain the functions of blood components: (a) red blood cells transport oxygen with the help of haemoglobin, (b) white blood cells are involved in phagocytosis and producing antibodies, (c) platelets assist in clotting (d) plasma carries blood cells, ions, nutrients, urea, hormones, and carbon dioxide.

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Exam focus

Cambridge IGCSE BiologyTransport in animalsCore content

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Quick explanation

This point belongs to Blood, especially Blood outcomes.
You need to be able to explain the functions of blood components: (a) red blood cells transport oxygen with the help of haemoglobin, (b) white blood cells are involved in phagocytosis and producing antibodies, (c) platelets assist in clotting (d) plasma carries blood cells, ions, nutrients, urea, hormones, and carbon dioxide.
The key ideas to know are State.
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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)3 marks

Description

Blood contains red blood cells, white blood cells, platelets, and plasma, each with specific functions.

a
State the function of red blood cells.
Your answer
Aim for approximately 1 distinct marking point.
[1]
b
State two functions of white blood cells.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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