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In Course: GCSE Biology (AQA): Paper 1

GCSE Biology: The Heart, Blood Vessels, and Blood

Learn the structure and function of the human heart as a double circulatory system. Covers the three types of blood vessel (arteries, veins, capillaries) and their adaptations. Includes the four main components of blood and their roles.

A macro photograph of red blood cells flowing through a healthy artery, illuminated to show the intricate details of the blood vessel walls and the cells' movement.

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Deck Contents

49 Cards
Lesson#1
In this deck, we'll explore the body's amazing transport network: the circulatory system. You'll learn how the heart pumps blood around the body, discover the different types of blood vessels, and find out about the four vital components that make up your blood.
Lesson#2
Large, multicellular organisms like humans can't rely on diffusion alone to get substances like oxygen and glucose to all their cells. It would be far too slow. Instead, we have a circulatory system, which acts like a sophisticated delivery service, pumping blood to every part of the body.
Quiz#3
In large organisms, why is a circulatory system needed for transport instead of just diffusion?

diffusion is too slow

Lesson#4
The human circulatory system is known as a double circulatory system. This is because for every one full circuit of the body, blood passes through the heart twice. The first circuit takes blood to the lungs to pick up oxygen, and the second circuit takes that newly oxygenated blood to the rest of the body.
Quiz#5
What type of circulatory system do humans have, where blood passes through the heart twice for each complete circuit?

a double circulatory system

Quiz#6
In the double circulatory system, what is the name for the circuit that transports blood to the lungs to pick up oxygen?

pulmonary circuit

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