Biology Topic Practice

Blood Composition

Blood is a tissue consisting of a fluid called plasma, in which red blood cells, white blood cells, and platelets are suspended.

How well do you know your red blood cell adaptations?

What is Blood Composition?

"Blood is a tissue consisting of plasma, in which red blood cells, white blood cells, and platelets are suspended."

Question 1

What is the main function of red blood cells?

Question 2

Which component of blood helps it to clot?

Question 3

Why can red blood cells carry large amounts of oxygen?

Blood Components

Red blood cells: Transport oxygen using haemoglobin. Platelets: Help blood to clot at wounds.

White blood cells: Part of the immune system. Plasma: Transports CO2, urea, and hormones.

Exam Tip

Red blood cells have no nucleus and a biconcave shape to maximize oxygen capacity and diffusion.

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